{"product_id":"audio-research-reference-7-preamplifier-the-grid-hifi-copy","title":"Audio Research Reference 7 Preamplifier | The Grid HiFi (open box)","description":"\u003ch1 class=\"w6asjq_TextBase GgxHUa_Title PDq2pG_selectionAnchorContainer\"\u003eAudio Research Reference 7 Preamplifier\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eopportunity to save on this open box ref 7!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e\u003cspan class=\"w6asjq_TextBase _85PZeG_Text\"\u003eReference Vacuum Tube Line-Stage Preamplifier | The Grid HiFi\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eReference, Reimagined.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Audio Research Reference 7 represents a new generation of the company's reference-level vacuum tube preamplifiers. Developed from the same engineering program that produced the flagship Reference 20, it introduces a redesigned mechanical platform, a refined power supply, and carefully selected signal-path components.\u003c\/p\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\n\u003cdiv class=\"oIb9lq_Box\" role=\"img\"\u003e\u003csvg width=\"1em\" height=\"1em\" viewbox=\"0 0 24 24\" fill=\"currentColor\" class=\"text-lg\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.161 3h9.678c.527 0 .982 0 1.356.03.395.033.789.104 1.167.297a3 3 0 0 1 1.311 1.311c.193.378.264.772.296 1.167.031.375.031.83.031 1.356v9.678c0 .527 0 .982-.03 1.356-.033.395-.104.789-.297 1.167a3 3 0 0 1-1.311 1.311c-.378.193-.772.264-1.167.296-.375.031-.83.031-1.356.031H7.16c-.527 0-.981 0-1.356-.03-.395-.033-.789-.104-1.167-.297a3 3 0 0 1-1.311-1.311c-.193-.378-.264-.772-.296-1.167A17.9 17.9 0 0 1 3 16.838V7.162c0-.527 0-.981.03-1.356.033-.395.104-.789.297-1.167a3 3 0 0 1 1.311-1.311c.378-.193.772-.264 1.167-.296C6.18 3 6.635 3 7.161 3ZM5.968 5.024c-.272.022-.373.06-.422.085a1 1 0 0 0-.437.437c-.025.05-.063.15-.085.422C5 6.25 5 6.623 5 7.2v6.386l.879-.879a3 3 0 0 1 4.242 0L16.414 19h.386c.577 0 .949 0 1.232-.024.272-.022.372-.06.422-.085a1 1 0 0 0 .437-.437c.025-.05.063-.15.085-.422C19 17.75 19 17.377 19 16.8V7.2c0-.577 0-.949-.024-1.232-.022-.272-.06-.373-.085-.422a1 1 0 0 0-.437-.437c-.05-.025-.15-.063-.422-.085C17.75 5 17.377 5 16.8 5H7.2c-.577 0-.949 0-1.232.024ZM13.586 19l-4.879-4.879a1 1 0 0 0-1.414 0L5 16.414v.386c0 .577 0 .949.024 1.232.022.272.06.372.085.422a1 1 0 0 0 .437.437c.05.025.15.063.422.085C6.25 19 6.623 19 7.2 19h6.386ZM14.5 8.5a1 1 0 1 0 0 2 1 1 0 0 0 0-2Zm-3 1a3 3 0 1 1 6 0 3 3 0 0 1-6 0Z\" clip-rule=\"evenodd\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eRather than simply updating the Reference 6SE, Audio Research developed the Reference 7 around the advances of its new flagship architecture. The result is a line-stage preamplifier designed to reveal more of the recording while preserving the texture, scale, and musical character that define the Audio Research listening experience.\u003c\/p\u003e\n\u003cdiv class=\"Wl_3jG_Trigger\" role=\"button\" type=\"button\" tabindex=\"0\"\u003e\n\u003cdiv class=\"ANObbW_Badge lKEGNW_Badge\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eBorn from the Reference 20\u003c\/h2\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Reference 7 shares the mechanical architecture developed for the Reference 20.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eIts multi-metal, layered chassis is engineered to manage resonance through controlled energy distribution. Inside, custom suspended, mass-loaded circuit boards help isolate sensitive audio circuitry from mechanical vibration.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThese are not merely cosmetic changes. Audio Research identifies resonance control and circuit-board isolation as foundational elements of its latest preamplifier platform, developed to preserve the integrity of the signal passing through the component.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eA Quieter Foundation for the Music\u003c\/h2\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Reference 7 introduces solid-state power-supply regulation, an important change intended to lower the noise floor and improve long-term stability.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe design also incorporates reference-grade output coupling capacitors derived from the Reference 20 development program.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eTogether, these changes are intended to preserve low-level musical information while maintaining the dynamic expression and tonal character expected from a reference Audio Research preamplifier.\u003c\/p\u003e\n\u003cdiv class=\"Wl_3jG_Trigger\" role=\"button\" type=\"button\" tabindex=\"0\"\u003e\n\u003cdiv class=\"ANObbW_Badge lKEGNW_Badge\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eVacuum Tube Performance with Modern System Flexibility\u003c\/h2\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Reference 7 uses four 6H30P dual-triode tubes in its line-stage circuitry.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eIts connection options accommodate sophisticated two-channel systems, including four balanced and four single-ended inputs, two pairs of main outputs in each format, and a dedicated subwoofer output.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe buffered, solid-state subwoofer output follows the main volume control, making it possible to incorporate a powered subwoofer without relying on an additional volume-control arrangement.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eWith 12 dB of balanced gain and 6 dB of single-ended gain, the Reference 7 is designed to work as the control center of a high-performance system built around a separate power amplifier.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eThe Heart of a Reference System\u003c\/h2\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eA preamplifier sits at the center of the listening experience. It selects the source, controls playback level, and delivers the signal to the power amplifier.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Reference 7 is designed for that responsibility. Its combination of mechanical isolation, updated regulation, vacuum tube circuitry, and extensive connectivity makes it a natural consideration for systems built around Audio Research power amplifiers and revealing reference loudspeakers.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eIt is a dedicated line-stage preamplifier, not an integrated amplifier or a phono preamplifier. Turntables require a separate phono stage, while loudspeakers require an external power amplifier.\u003c\/p\u003e\n\u003cdiv class=\"S6IMGG_Divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"PSWZZq_List\"\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eReference-level vacuum tube line-stage preamplifier\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eDeveloped from the same engineering platform as the Reference 20\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eMulti-metal, layered chassis for resonance management\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eCustom suspended, mass-loaded circuit boards\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSolid-state regulated power supply\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eReference 20-derived output coupling capacitors\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eFour 6H30P dual-triode tubes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eFour balanced and four single-ended inputs\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eTwo pairs of balanced and single-ended main outputs\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eDedicated buffered subwoofer output with volume tracking\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"PSWZZq_Item\"\u003e\n\u003cdiv class=\"PSWZZq_Content\"\u003e\n\u003cdiv class=\"PSWZZq_Label\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eAvailable in black or silver finishes, subject to dealer confirmation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Wl_3jG_Trigger\" role=\"button\" type=\"button\" tabindex=\"0\"\u003e\n\u003cdiv class=\"ANObbW_Badge lKEGNW_Badge\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"S6IMGG_Divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"Wl_3jG_Trigger\" role=\"button\" type=\"button\" tabindex=\"0\"\u003e\n\u003cdiv class=\"ANObbW_Badge lKEGNW_Badge\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\n\u003cdiv class=\"oIb9lq_Box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"_6IUVGW_TableFrame\"\u003e\n\u003ctable class=\"_6IUVGW_Table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSpecification\u003c\/p\u003e\n\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eDetails\u003c\/p\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eProduct type\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eVacuum tube line-stage preamplifier\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eFrequency response\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e3.6 Hz–24 kHz at −1 dB; 84.5 kHz at −3 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eTHD + noise, balanced\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e0.003%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eTHD + noise, single-ended\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e0.02%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced main output gain\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e12 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended main output gain\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e6 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced input impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e50 kΩ\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended input impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e25 kΩ\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced main output impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e600 Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended main output impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e300 Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced subwoofer output impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e200 Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended subwoofer output impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e100 Ω\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eOutput polarity\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eNon-inverting\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e4 pairs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e4 pairs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBalanced main outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e2 pairs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSingle-ended main outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e2 pairs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eSubwoofer output\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eBuffered, solid-state; follows main volume\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eTube complement\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e4 × 6H30P dual triodes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eNorth American power\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e100–135 V AC, 60 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eInternational power\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e200–250 V AC, 50–60 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eMaximum power consumption\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e78 W\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eStandby consumption\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e4.3 W\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eDimensions (W × H × D)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e19 × 8.13 × 19.06 in.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eNet weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eApproximately 59.5 lb \/ 27 kg\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eShipping weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eApproximately 75 lb \/ 34 kg\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"S6IMGG_Divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"w6asjq_TextBase GgxHUa_Title\"\u003eExperience Audio Research at The Grid HiFi\u003c\/h2\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eThe Reference 7 deserves a system designed around its capabilities.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eAt The Grid HiFi in Houston, we can help pair it with an Audio Research power amplifier, appropriate source components, and reference loudspeakers. We can also evaluate balanced connectivity, system gain, and subwoofer integration to ensure the complete system works together.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003eWhether you're assembling a new reference system or upgrading an established collection of separates, our team can help you determine how the Reference 7 fits into your listening room.\u003c\/p\u003e\n\u003cp class=\"w6asjq_TextBase _85PZeG_Text\"\u003e\u003cspan class=\"w6asjq_TextBase _85PZeG_Text\"\u003eContact The Grid HiFi to explore the Audio Research Reference 7.\u003c\/span\u003e\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":55084262293841,"sku":null,"price":25800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Ref7-alu-front-1500.jpg?v=1787603981","url":"https:\/\/gridhifi.com\/products\/audio-research-reference-7-preamplifier-the-grid-hifi-copy","provider":"The Grid","version":"1.0","type":"link"}