{"title":"Audio Research","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong data-end=\"1420\" data-start=\"1381\"\u003eDiscover Audio Research at The Grid\u003c\/strong\u003e\u003cspan\u003e — a cornerstone of American made high-end audio, renowned for its commitment to pure, uncompromised sound. Available for private demonstration in our \u003c\/span\u003e\u003cstrong\u003eHouston\u003c\/strong\u003e\u003cspan\u003e showroom, Audio Research components are integrated into complete reference-level systems designed for discerning listeners. As the Texas authorized dealer, we ensure every hifi system is carefully matched, calibrated, and installed for maximum performance. \u003c\/span\u003e\u003cstrong data-end=\"1885\" data-start=\"1810\"\u003eSchedule a private listening session or request more information today. Flight reimbursement is available for purchasing clients.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"reference-750-sel-mono-amplifier","title":"Reference 750 SEL Mono Amplifier","description":"\u003cp\u003eThe Reference 750 SEL monoblock amplifier continues the story begun 25 years ago with the introduction of the Reference 600; that is, to create the ultimate, vacuum-tube amplifier with enough power to drive any speaker, and to provide a musical experience unlike any before it. The Reference 750 SEL redefines all expectations of what is possible from an amplifier in a music playback system. It is the culmination of everything Audio Research knows about amplifier design and manufacture – High Definition in its purest, most dynamic form.\u003c\/p\u003e\u003cp\u003eListening to Reference 750 SEL monoblocks in a high performance system is a transformative experience; under total control, speakers disappear from the listening room and the listener is transported into a three-dimensional realm where music takes on a palpable, tangible form. Details from source material are resolved against a black background, painting images in space with vivid reality. Bass becomes the foundation on which this living performance develops, produced with startling temporal and timbral accuracy. Here is the breath of the performer, the pick against the string, the brilliance of a full orchestra.\u003c\/p\u003e\u003cp\u003eThe Reference 750 SEL delivers over 750 watts of power into speaker loads of 4 to 16 ohms. This is achieved by the use of massive, custom-built power and output transformer delivering current from sixteen KT150 vacuum tubes in each channel. Thanks to 48 hours of burn-in, followed by thorough testing and careful matching of tubes, the amplifier requires little maintenance. Power supply regulation is also achieved by 6550WE and 6H30 vacuum tubes. Tube bias is controlled by two KT150 tubes, each driving a bank of eight KT150 output tubes.\u003c\/p\u003e\u003cp\u003eThe SEL is the last version of the 750-series, produced in a limited edition of ten pairs. Using the latest and best parts available, the SEL version includes 23 new wires and 26 new capacitors as part of a stunning sonic transformation. The best vacuum-tube amplifier in the world just got better.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953884324177,"sku":"Reference 750 SEL Mono Amplifier","price":42500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.28.39-PM.png?v=1780580618"},{"product_id":"reference-160-m-mono-amplifier","title":"Reference 160 M Mono Amplifier (Each)","description":"\u003cp\u003eAfter two years in development, the new Reference 160M (REF160M) Monoblock Power Amplifier is built like no other, looks like no other, and sounds like no other amplifier that you have ever heard, but it is unmistakably Audio Research. It features a refined audio topology with fewer and better components in the signal-path than in previous designs, switchable Ultralinear\/Triode operation, proprietary auto-bias, output tube monitoring and protection, an advanced power meter, and much more. This array of features has never been offered before in an Audio Research amplifier.\u003c\/p\u003e\u003cp\u003eThe designers at Audio Research wanted to create a new style that would complement the look of the REF6 preamp while also featuring a GhostMeter™ that allows a view of the glowing KT150 vacuum tubes. While this GhostMeter™ allows you to see the output tubes, it also incorporates an innovative dual-layer construction with distinctively etched markings that create an integrated power meter. The power meter’s output-level markings illuminate via hidden LEDs, and the illumination brightness is adjustable. The REF160M includes a sculpted cover with an integrated fan to cool the heat generated by the four (4) KT150 output tubes and two (2) 6H30 driver tubes. Solid-state power regulation was chosen to provide increased efficiency, stability, and reliability. The power supply stage uses a newly developed High Energy Capacity Transformer and a hefty bulk storage-capacity network to provide extremely high current on demand for transient peaks and intense dynamics, as well as for prodigious bass depth and authority.\u003c\/p\u003e\u003cp\u003eIt is understood that the best path is the shortest path. Audio Research engineers created a new audio circuit topology with the shortest signal path and the fewest components. Those components are not only the best available, many are custom made for Audio Research. Incorporating these quality components is a special 4-layer circuit board that lowers the noise floor to unprecedented levels, and a design which was previously reserved for use in our preamplifiers. The result is a new benchmark in musicality in every criterion of sound quality.\u003c\/p\u003e\u003cp\u003eThe REF160M also features a proprietary auto-bias circuit that works with various tubes types, including 6550, KT88, and KT120, in addition to the supplied KT150 and works constantly to maintain precise bias of the output tubes, while also adjusting for tube wear. There is no need to check or adjust bias ever again.\u003c\/p\u003e\u003cp\u003eThe new REF160M breaks new ground sonically, aesthetically and operationally, and will be available in Natural (Silver) or Black finishes.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Black","offer_id":53953884684625,"sku":null,"price":22500.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":53953884717393,"sku":null,"price":22500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.26.14-PM.png?v=1780580620"},{"product_id":"reference-160-s-stereo-amplifier","title":"Reference 160 S Stereo Amplifier","description":"\u003cp\u003eAudio Research is pleased to announce the Reference 160S stereo power amplifier. A vacuum-tube design, it follows in the footsteps of the internationally-acclaimed 160M monaural power amplifier, introduced in 2018, which has won multiple amplifier-of the-year honors from publications such as Stereophile, Hi-Fi+, and others.\u003c\/p\u003e\u003cp\u003eThe Reference 160S (REF160S) carries-over the stunning look of the 160M, with dual GhostMeters™ that float in front of the eight KT150 output power tubes.\u003c\/p\u003e\u003cp\u003eThe 160S continues the feature set introduced in the 160M, including a proprietary auto-bias circuit, switchable Triode or Ultralinear modes of operation, balanced and single-ended inputs, and an output tube monitoring mode. The 160S also uses a four-layer circuit board, allowing music to emanate from a jet-black background.\u003c\/p\u003e\u003cp\u003eWith a weight of 100 lbs. and a chassis depth of 21.5“(54.6 cm), two rear handles were added to make it easier to lift and move. Larger 120mm, low profile fans are built into the bottom cover plate horizontally to provide ventilation.\u003c\/p\u003e\u003cp\u003eThe REF160S distills the astonishing resolution, dynamic impact, musical purity and finesse of the 160M into one beautiful and attainable chassis. It was designed for the music lover in all of us.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953884815697,"sku":"Reference 160 S Stereo Amplifier","price":28000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.24.59-PM.png?v=1780580622"},{"product_id":"reference-80s","title":"Reference 80S","description":"The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package. The 80S was created for the music lover who does not require the output power of its larger siblings, the Reference 160S stereo and 160M mono amplifiers. The 80S continues the design ethos, including dual GhostMeters® that float in front of four KT150 output tubes. Extruded panels, a vital part of the all-aluminum chassis, provide rigidity and beauty. Outwardly, the 80S shares the same dimensions as the 160M. A single shallow whisper fan is built into the bottom plate. Flexibility is built-in, too, with XLR and SE inputs, 4-8-16 ohm output taps, 12V input and output triggers, RS232 input, tube hour meter, switchable fan speeds, and defeatable auto-off function. The feature set is the same as the 160S, including a proprietary auto-bias circuit that adjusts for not only tube age, but for powerline voltage swings. There is fusing of the output tubes, single-ended and balanced inputs for flexibility, switchable Triode-Pentode operation to accommodate loudspeakers and personal preference, output tube monitoring, and inclusion of an hour meter so you know how many hours are on the tubes–like an odometer for your amp. This is a tube amplifier that does not require fiddling, it is meant to be enjoyed. The built-in 12V trigger turns the 80S on or off when connected to a modern preamp with a 12V trigger.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e Like every Reference amplifier before it, the 80S is a fully-balanced differential design because it provides the highest performance and lowest distortion. A four-layer circuit board is used to provide a separate ground plane, better circuit layout, and fewer noise-inducing point-to-point connections. Music is projected against a quiet, jet-black background—like looking at the stars out in the country, removed from light pollution. It is magical and enveloping. Built by hand, from the ground-up in our Maple Grove, Minnesota facility, this is created in service of the music, bringing it to life in every sense of the word. Listening through the 80S is a compelling experience, never a mental exercise. Set up appropriately, the 80S can fool you into feeling you are in the presence of the musical performance: The finest details are heard, with rich harmonics and full dynamic contrasts–from the smallest whisper to the largest crescendo–showcased with the ambience of the original acoustic space. Whatever your reference speakers may be, whether they are from Wilson, Magnepan, Vandersteen, Focal, Sonus faber, B\u0026amp;W, or whatever you like: the Reference 80S will elevate their performance to a new plateau.","brand":"Audio Research","offers":[{"title":"Black","offer_id":53953885372753,"sku":null,"price":18500.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":53953885405521,"sku":null,"price":18500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.00.49-PM.png?v=1780580623"},{"product_id":"i-50-integrated-amplifier","title":"I\/50 Integrated Amplifier","description":"\u003cp\u003eThe I\/50 Integrated Amplifier is the first product in an all-new series from Audio Research. Functionally simple, visually engaging, and musically sublime – the I\/50 takes music listening to a whole new experience. Hand-crafted in Minnesota, the I\/50 is built with the same attention to detail as all other Audio Research products – each one even gets its own listening test with sonic designer, Warren Gehl. Available in six colors, the I\/50 features Cerakote finishes for a beautiful and long-lasting look. The modular design allows for the installation of two audio modules – a Phono Stage, and a D\/A Converter (to come in 2022). The high current, 50 watt per channel amplifier is capable of driving a wide variety of speakers. A headphone jack allows for personal listening time.\u003c\/p\u003e\u003cp\u003eThe I\/50 is designed to be easy to use, and has three controls on its top panel – Power, Input, and Volume. Two LexieTubes® provide display information for input selection and volume. Two matched pairs of 6550WE vacuum tubes, along with three 6922 tubes, stand in front of the perforated transformer cover. Three single-ended inputs and one XLR input provide connectivity for most systems, along with 4- and 8- Ohm speaker taps to accommodate your speaker of choice. One input can be assigned for pass-through function. A full-function metal remote control provides further functionality and operation. An optional tube cage will be available.\u003c\/p\u003e\u003cp\u003eAs with all Audio Research products, the I\/50 is built entirely in our Minnesota facility by a team of skilled technicians and expert craftspeople. Offered in six colors, the I\/50 is the first product completely finished in-house. The Audio Research finishing lab encompasses a purpose-built painting facility and laser imaging and marking machines to produce a luxurious finish normally found only on much more expensive products. The Cerakote finish is not only beautiful, but designed to be enduring and easy to maintain.\u003c\/p\u003e\u003cp\u003eThe performance of the I\/50 belies its compact design. 50 watts of all-vacuum tube power energize your speakers with beautiful and lifelike music. Designed by the Audio Research engineering team and fine-tuned by Warren Gehl, the I\/50 has been given the same level of care and attention as our Reference Series products. The ability of the I\/50 to reconstruct a musical experience will thrill and excite all who hear it. Thanks to the substantial power supply and high current design, the I\/50 provides controlled and dynamic playback – even on challenging speakers. The Phono module provides 42 dB of gain, allowing a wide choice of moving magnet and high-output moving coil cartridges. The D\/A Converter will have multiple connection options and an array of decoding formats to accommodate the wide spectrum of music formats and resolutions. The I\/50 is a truly integrated product while providing renowned Audio Research performance and sound quality.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Gold","offer_id":53953885602129,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":53953885634897,"sku":"I\/50 Integrated Amplifier","price":6500.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":53953885667665,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":53953885700433,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":53953885733201,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.18.04-PM.png?v=1780580624"},{"product_id":"reference-10-line-stage","title":"Reference 10 Line-Stage","description":"\u003cp\u003eIn 2010 we announced the Reference Anniversary preamplifier, a special limited edition product commemorating our 40th anniversary. It was acclaimed by many as the finest preamplifier available and a fitting tribute to all of the classic Audio Research products that were introduced during the forty years that preceded it. That we would only accept new orders for this special product during the anniversary year surprised almost everyone, but we considered the limited time frame appropriate. Since that time, we have learned a few things, and the result of that knowledge led to the development of the Reference 10. Included are critically chosen new components, proprietary custom-made capacitors, wiring, and new connectors that cumulatively provide a level of performance never before achieved. Key Audio Research design traits remain: The signal path is fully discrete, all-tube, pure Class-A, with zero feedback. Other attributes and choices remain, too: Each unit is completely hand-soldered and hand-constructed in our Minnesota facility using the finest materials, with major components such as custom transformers, plated-through circuit boards, and casework sourced locally. All engineering is performed in-house.\u003cbr\u003eThe Reference 10 follows a new aesthetic path as well. It has a very modern and elegant finish that will attract new admirers without alienating fans of our older products. The front panel of the main control unit has a new, large round volume knob on the right side, with two buttons under it for Power and Mute—the only two buttons on the unit—and a large display on the left. Our logo is above the knob on the right, making this the first asymmetrical Audio Research preamplifier ever. The left side of the front panel contains an interactive touch-screen display that allows the user to intuitively control almost all functions.\u003c\/p\u003e\u003cp\u003eThe power supply chassis, connected to the main unit via two umbilical cords, simply has one green LED under its offset Audio Research logo. All of the side panels are finished identically to the front panels: Natural anodized, one quarter-inch thick, with no screws visible. The entire chassis (including rear panel) is painted silver to complete the look. There are beautiful new, clear acrylic covers with a revised perforation pattern. And, there is no printing on the front panel of either chassis.\u003c\/p\u003e\u003cp\u003eAfter the single 20A power cord, the Reference 10 is completely dual-mono from the power supply through the audio circuit. There are dual, separate low- and high-voltage transformers for each channel; there is dual-mono vacuum-tube regulation (one 6H30 and one 6550WE per channel), dual-mono audio circuits (four 6H30 per channel), and enough energy storage for a serious power amplifier.\u003c\/p\u003e\u003cp\u003eJust as the Reference Anniversary was shockingly better than its predecessors, the Reference 10 offers a further level of resolution, refinement and dynamism that vividly improve the musical experience in every way. As we have said before, words can only fall short of your own experience; to understand how much more profound listening to your favorite recordings can be, you must hear the Reference 10. It is stunning.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Black","offer_id":53953886093649,"sku":null,"price":42000.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":53953886126417,"sku":null,"price":42000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.11.54-PM.png?v=1780580627"},{"product_id":"reference-6se-line-stage","title":"Reference 6SE Line-Stage","description":"\u003cp\u003eAudio Research has produced some of the finest components for music reproduction; this is especially true with regard to preamplifiers. In 1973, the SP3 was hailed by every major critic as the best preamplifier available, and this tradition of excellence has continued ever since. The Reference Series from Audio Research was first introduced in 1995 and has been the ultimate representation of performance, musicality and dynamics. The Reference 6SE is the latest chapter in our story.\u003c\/p\u003e\u003cp\u003eWith a single gain stage, the 6SE is a fully-balanced, Class-A design with zero feedback. In addition to six long-life 6H30 tubes in the gain stage, the enormous and highly-regulated power supply has another 6H30 with a 6550 providing vacuum-tube regulation.\u003c\/p\u003e\u003cp\u003eThe Reference 6SE replaces the Reference 6 and offers the highest performance ever available in a single-chassis preamplifier. Benefitting from the development that went into the Reference 160-series amplifiers, and the latest Reference 750SEL, the 6SE incorporates a myriad of new parts that have been judiciously incorporated into its design. The final 6SE would not have been possible without these revolutionary amplifiers.\u003c\/p\u003e\u003cp\u003eRegardless of the recording, the improvement in sound is immediate and compelling. Effortless, dynamic, and dimensional. The speed and resolution merge with musical color and textures that are both accurate and captivating.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953886290257,"sku":"Reference 6SE Line-Stage","price":22500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.09.27-PM.png?v=1780580628"},{"product_id":"ls28se-line-stage","title":"LS28SE Line-Stage","description":"\u003cp\u003eThe LS28SE line stage is a flexible and intuitive preamplifier. Four balanced and four single-ended inputs, and two sets of both balanced and single-ended outputs, allow maximum connectivity. The straightforward menu allows control of numerous parameters, including input naming, tube hours, auto shutdown, and home theater passthrough. Phase invert and mono are also standard functions. At the heart of the LS28SE are four 6H30 vacuum tubes in the analog circuit. While the LS28SE is the perfect match for any Audio Research amplifier, it has been designed to work with nearly any amplifier on the market today.\u003c\/p\u003e\u003cp\u003eThe improvements in the LS28SE stem from what was learned during the creation of Audio Research’s Reference 160-series amplifiers. Very similar to the wire and parts changes incorporated in the REF6SE and REF PH3SE, the LS28SE also includes upgrading to the same proprietary gold coupling caps used in the REF6SE. These numerous and costly component upgrades elevate the LS28SE’s performance to an entirely new level. The improved clarity, resolution, transient snap, sense of space, and a relaxed purity are instantly noticeable and will inspire extended listening sessions.\u003c\/p\u003e\u003cp\u003eSince 1970, High Definition has been more than our trademark; it has been our guiding principle for all products. The Foundation Series continues this passion and philosophy, offering the listener stunning playback, great value, and unparalleled long-term support.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953886617937,"sku":"LS28SE Line-Stage","price":12000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.06.02-PM.png?v=1780580629"},{"product_id":"reference-phono-10-phono-stage","title":"Reference Phono 10 Phono Stage","description":"\u003cp\u003eVinyl record playback has been an integral part of Audio Research since our founding in 1970. Think back to the great phono stages built into the defining preamplifiers of their day, among them the SP3, SP6, SP8, SP10, and SP11. Even after the introduction of the compact disc in 1982, phono sections remained a revered part of our preamplifiers. The first Audio Research phono preamplifier in a separate chassis was introduced in 1992. After all this time, we are proud to finally introduce the first two-chassis phono preamplifier in our history, the Reference Phono 10. This model number was designated because it mirrors its line-stage counterpart, the Reference 10, providing an unsurpassed level of performance in its category. The front panel has a 7” diagonal touch screen mounted asymmetrically, and only two buttons for power and mute. The interactive touch screen allows the user to change inputs (and input names), equalization, loading, gain, muting, foreground and background colors of the display, display intensity, and tube hours. Control functions are duplicated on the supplied metal remote. The front and side panels are 3\/8” brushed and anodized aluminum, and the tops of both units are acrylic with a laser-cut perforation pattern (chosen for its sonic benefits).\u003c\/p\u003e\u003cp\u003eThe Reference Phono 10 embodies everything we know about phono playback, and incorporates many of the insights gained in the development of the Reference Anniversary and Reference 10 line-stage preamplifiers. The Reference Phono 10 is a true dual-mono design with totally separate signal paths for each channel, from the dual-mono power supply forward. There are separate high- and low-voltage transformers for each channel, and sufficient energy storage for a serious amplifier, fully twice the capacity of a Reference Phono 2, providing incredible dynamic headroom. There are twenty stages of electronic regulation, with separate vacuum-tube regulation for each channel. Dual umbilical cords connect between the power supply and the separate analog stage. The power cord inlet contains a 20A IEC connector.\u003c\/p\u003e\u003cp\u003eThe dual-mono audio circuits are fully discrete, pure Class-A, with zero feedback. The low gain audio section uses eight 6H30 tubes, four per channel. Rather than using a step-up transformer, special high-gain, extremely low-noise FETs are used in the high- gain section. This approach is costlier than using a transformer, but it is well worth the dramatic performance increase. The design is fully balanced, with an input circuit that allows its RCA inputs to operate in a balanced configuration without requiring an inverter. There are two sets of inputs with the same flexibility as the Reference Phono 2SE, including switchable Low and High gain, seven loading options including 47k, 1000, 500, 200, 100, 50 ohms, plus Custom which can be factory-set according to your needs. In addition to standard RIAA equalization, the Reference Phono 10 also includes early Columbia and Decca equalization curves.\u003c\/p\u003e\u003cp\u003eFrom the first note on that treasured LP, its greatness is at once obvious and breathtaking—the Reference Phono 10 is a sonic blockbuster that establishes the new standard in analog music playback. Emphatically. Great vinyl takes on an explosive, dynamic quality that is normally encountered only in a live performance, whether the crescendo of an orchestra, a roaring rock band, or the intricacies of a solo piano. When called for, the stage is vast, holographic, enveloping: Dimensionality is redefined, with an engaging, ‘reach out and touch it’ quality. The RP10 resolves so much detail without grain, delighting listeners with new information extracted from those familiar grooves. The musical experience is so much more involving and persuasive—you do not want it to end. But these are mere words that pale in comparison to the actual listening experience. Understanding only comes from listening.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953886880081,"sku":"Reference Phono 10 Phono Stage","price":42000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-12.07.52-PM.png?v=1780580631"},{"product_id":"reference-phono-3se-phono-stage","title":"Reference Phono 3SE Phono Stage","description":"\u003cp\u003eWhen Audio Research was founded in 1970, analog vinyl playback was the de facto music source of the time. Audio Research has either incorporated or built stand-alone phono stages since the very beginning and has continuously provided phono preamplification, even during the height of digital music. The Reference Phono 3SE is the next great advancement in analog playback and represents a new benchmark. The knowledge gained in the creation of Audio Research’s award-winning Reference 160-series amplifiers has transitioned to both Reference preamplifiers. The Reference Phono 3SE continues the upgrades introduced in the Reference 6SE line-stage, including a number of new, ultra-high-quality parts judiciously incorporated into its design and ushering in a new level of sonic accuracy and musicality. Due to the extremely low-level nature of the signals involved in a phono stage, the component and wiring upgrades incorporated in the Reference Phono 3SE combine to create a startling advancement in performance. The improvements heard immediately include enhanced resolution at all levels, greater purity and focus, improved transient speed and snap, and better dynamic shading. The sum of these improvements is exceptional, further breaking down the barrier between reproduced sound and the immediacy of a live event.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe Reference Phono 3SE phono preamplifier is housed in a single chassis with heavy, machined aluminum side panels and special acrylic top and bottom covers for the best sound. The vacuum-tube audio stage utilizes six 6H30 vacuum tubes (three per channel), while one 6H30 and a 6550WE provide regulation in the power supply. The large, vacuum fluorescent display on the front panel shows all functions relative to the selected input. A row of six buttons controls power, mute, input, and menu controls. Menu functions include auto shutdown, gain and load settings, display brightness, equalization settings (RIAA, Columbia and Decca), and accumulated tube hours. High- and low-gain settings, as well as six fixed and one custom impedance setting, can accommodate most any moving coil or moving magnet cartridge. Two single-ended inputs provide connectivity to two turntables. There are two main outputs providing both balanced and single-ended outputs. RS-232 and IR input allow for additional control options. The Reference Phono 3 includes a full-function remote control.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Black","offer_id":53953887076689,"sku":null,"price":22500.0,"currency_code":"USD","in_stock":true},{"title":"Natural Silver","offer_id":53953887109457,"sku":null,"price":22500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-11.55.54-AM.png?v=1780580632"},{"product_id":"ph9-phono-stage","title":"PH9 Phono Stage","description":"\u003cp\u003eThe PH9 phono preamplifier is a great pairing with most cartridge and turntable combinations. A trio of 6H30 vacuum tubes are at the core of a simple and clear signal path to provide the most transparent preamplification possible. Five different impedance settings allow for cartridge loading, which can be changed on the fly with the included metal remote. Cartridge impedance, tube hours, auto shutdown, and other features are included in the menu system.\u003c\/p\u003e\u003cp\u003eSince 1970, High Definition has been more than our trademark; it has been our guiding principle for all products. The Foundation Series continues this passion and philosophy, offering the listener stunning playback, great value, and unparalleled long-term support.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953887240529,"sku":"PH9 Phono Stage","price":12000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-11.53.30-AM.png?v=1780580633"},{"product_id":"dac-9-tube-dac","title":"DAC 9 Tube DAC","description":"\u003cp\u003eThe DAC9 digital-to-analog converter decodes most current formats with state-of-the-art vacuum tube technology. Five digital connections – USB, RCA, BNC, AES\/EBU, and Toslink – provide connectivity to all of your digital sources. Quad DAC architecture provides a balanced digital signal, wide dynamic range, and decoding resolutions from red book CD up to 384 kHz and native DSD sampling rates. A pair of 6H30 vacuum tubes are the heart of the analog circuit. Both balanced and single-ended connectors are provided for output connectivity. Native-rate upsampling and selectable digital filters allow customization of the digital signal.\u003cbr\u003eAudio Research is pleased to introduce the Foundation Series. From the same engineering and design team responsible for the award-winning Reference Series, the Foundation family of vacuum tube components has been created to provide incredible musical experiences. Spatial definition, dynamics and detail abound while providing the most natural musical experience.\u003c\/p\u003e\u003cp\u003eThe first three components include the LS28 line stage preamplifier, the PH9 phono stage, and the DAC9 digital-to-analog converter. A new amplifier will follow, with other products to complete the series. All models will be available in both black and natural anodized aluminum finishes. Each unit comes with its own custom metal remote control.\u003c\/p\u003e\u003cp\u003eSince 1970, High Definition has been more than our trademark; it has been our guiding principle for all products. The Foundation Series continues this passion and philosophy, offering the listener stunning playback, great value, and unparalleled long-term support.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953887666513,"sku":"DAC 9 Tube DAC","price":12000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Screen-Shot-2023-02-22-at-11.58.05-AM.png?v=1780580636"},{"product_id":"arc-remote","title":"ARC Metal Remote MR1","description":"","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953887830353,"sku":"ARC Remote","price":400.0,"currency_code":"USD","in_stock":true}]},{"product_id":"s-200-stereo-amplifier","title":"S-200 Stereo Amplifier","description":"\u003cp\u003eThe S-200 Stereo Amplifier is an exceptional 200 WPC stereo power amplifier, thoughtfully crafted by our dedicated solid-state engineering team. Building on the successful circuit topology of the S-100, the Audio Research S-200takes performance to the next level, expertly tuned to provide greater dynamics demands and higher output.\u003c\/p\u003e\u003cp\u003eThis amplifier is designed for those who crave not just power, but a profound connection to their music. With its enhanced capabilities, the S-200 features higher capacity power supplies and a robust current output stage design, ensuring that every note is delivered with authority and precision. This amplifier is capable of effortlessly driving a wide range of speakers, filling your space with dynamic soundscapes that breathe life into your favorite recordings.\u003c\/p\u003e\u003cp\u003eThe front panel of the Audio Research S-200 is not just functional, it’s a visual statement, adorned with sleek white-on- black power meters reminiscent of our latest Reference amplifiers. These meters provide a striking visual cue of the amplifier’s performance, allowing you to engage with the music on a deeper level as you witness the power being harnessed in real-time.\u003c\/p\u003e\u003cp\u003eThe S-200 is an invitation to experience music like never before. With every listening session, you’ll feel the energy and emotion of the artists as this powerful component transforms your audio environment into a concert hall of sound. Let the S-200 be your guide on a journey through the rich tapestry of music, where every detail resonates and every moment is cherished.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953952547153,"sku":null,"price":12950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/audio-research-s-200.jpg?v=1780581027"},{"product_id":"audio-research-i-55-integrated-amplifier","title":"Audio Research I\/55 Integrated Amplifier","description":"\u003cp data-start=\"150\" data-end=\"194\"\u003e\u003cstrong data-start=\"150\" data-end=\"194\"\u003eAudio Research I\/55 Integrated Amplifier\u003c\/strong\u003e\u003c\/p\u003e \u003cp data-start=\"196\" data-end=\"629\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eAudio Research\u003c\/span\u003e\u003c\/span\u003e I\/55 Integrated Amplifier is a refined evolution of one of the most respected tube amplifier designs in high-end audio. Building directly on the foundation of the I\/50, the I\/55 incorporates meaningful performance upgrades inspired by the flagship I\/70—delivering greater flexibility, improved usability, and enhanced musical performance while maintaining the signature Audio Research sound.\u003c\/p\u003e \u003cp data-start=\"196\" data-end=\"629\"\u003eThe Audio Research I\/55 Integrated Amplifier is designed to be tailored to your system with optional modular upgrades. The DAC card is available for an additional $1,000, and the phono card is also available for an additional $1,000. For those looking to maximize versatility and value, both the DAC and phono modules can be added together for $1,500, offering a complete analog and digital front-end solution on top of the I\/55’s $6,500 base price.\u003c\/p\u003e \u003cp data-start=\"631\" data-end=\"1115\"\u003eAt its core, the Audio Research I\/55 is a fully tube-based integrated amplifier designed for listeners who value realism, dimensionality, and emotional engagement. It uses two matched pairs of 6550 output tubes along with 6922 input tubes to produce 50 watts per channel. This power output is carefully engineered to deliver a balanced combination of control, dynamics, and tonal richness—making the I\/55 an ideal integrated amplifier for both modern and classic loudspeaker pairings.\u003c\/p\u003e \u003cp data-start=\"1117\" data-end=\"1564\"\u003eOne of the most important advancements in the I\/55 is the addition of \u003cstrong data-start=\"1187\" data-end=\"1211\"\u003eauto-bias technology\u003c\/strong\u003e. This feature continuously maintains the correct operating point for the output tubes, ensuring consistent performance and extending tube life without the need for manual adjustment. For consumers, this means a more user-friendly tube amplifier experience without sacrificing the purity and performance that tube enthusiasts expect from Audio Research.\u003c\/p\u003e \u003cp data-start=\"1566\" data-end=\"2051\"\u003eThe I\/55 also introduces a more advanced internal architecture with \u003cstrong data-start=\"1634\" data-end=\"1696\"\u003eindependent tube preamplifier and power amplifier sections\u003c\/strong\u003e. This design provides greater system flexibility and improved performance, particularly in setups that benefit from external integration. The inclusion of preamplifier outputs allows the I\/55 to easily pair with powered subwoofers, giving users the ability to build a more complete full-range system without compromising the integrity of the signal path.\u003c\/p\u003e \u003cp data-start=\"2053\" data-end=\"2627\"\u003eConnectivity is another area where the Audio Research I\/55 Integrated Amplifier excels. The amplifier features \u003cstrong data-start=\"2164\" data-end=\"2220\"\u003ethree single-ended inputs and one balanced XLR input\u003c\/strong\u003e, allowing seamless integration into a wide variety of high-end audio systems. For listeners seeking a more modern digital front end, the I\/55 offers an \u003cstrong data-start=\"2373\" data-end=\"2396\"\u003eoptional DAC module\u003c\/strong\u003e featuring the AKM Velvet Sound DAC architecture. This optional digital section supports USB, optical, coaxial, and Bluetooth inputs, making it easy to connect today’s digital sources while maintaining audiophile-grade performance.\u003c\/p\u003e \u003cp data-start=\"2629\" data-end=\"2960\"\u003eFor vinyl enthusiasts, an \u003cstrong data-start=\"2655\" data-end=\"2679\"\u003eoptional phono stage\u003c\/strong\u003e is available with both moving magnet (MM) and moving coil (MC) compatibility, including adjustable loading for MC cartridges. This flexibility allows the I\/55 to serve as the centerpiece of a high-performance analog system, eliminating the need for additional external components.\u003c\/p\u003e \u003cp data-start=\"2962\" data-end=\"3337\"\u003eThe I\/55 also includes a \u003cstrong data-start=\"2987\" data-end=\"3048\"\u003eheadphone output driven directly by the 6550 output tubes\u003c\/strong\u003e, delivering a premium personal listening experience with the same warmth, detail, and dynamic expression found in its speaker output. This feature reinforces the amplifier’s versatility, making it equally suited for both dedicated listening rooms and more personal listening environments.\u003c\/p\u003e \u003cp data-start=\"3339\" data-end=\"3786\"\u003eWith its combination of \u003cstrong data-start=\"3363\" data-end=\"3481\"\u003e50 watts per channel of tube power, auto-bias operation, optional DAC and phono modules, and flexible connectivity\u003c\/strong\u003e, the Audio Research I\/55 Integrated Amplifier stands as a complete solution for discerning listeners. It embodies the craftsmanship, innovation, and sonic excellence that define Audio Research—bringing high-end tube performance into a modern, accessible, and highly adaptable integrated amplifier design.\u003c\/p\u003e \u003cp data-start=\"3339\" data-end=\"3786\"\u003eAt The Grid, the Audio Research I\/55 can be experienced the way it was meant to be heard—in a properly designed listening environment with expert guidance. Our team will help you configure the ideal setup, from source components to speaker pairing, ensuring you get the absolute best performance from your system. Contact us today or visit our Houston showroom to schedule a private listening session and explore the I\/55 in person.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":53953973059921,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/download-10-1.jpg?v=1780581134"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/collections\/brand_audo-research-hd.svg?v=1781874728","url":"https:\/\/gridhifi.com\/collections\/audio-research.oembed","provider":"The Grid","version":"1.0","type":"link"}