{"product_id":"audioquest-rocket-88-single-biwire-speaker-cable-pair-the-grid-hifi-copy","title":"AudioQuest ThunderBird ZERO BiWire COMBO Pair | The Grid HiFi","description":"\u003ch2 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAudioQuest ThunderBird ZERO BiWire COMBO Speaker Cable — Pair\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eThunderBird ZERO for the treble. ThunderBird BASS for the bass. One purpose-built cable system for serious bi-wire loudspeakers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest ThunderBird ZERO BiWire COMBO combines \u003cstrong\u003eThunderBird ZERO and ThunderBird BASS into a single, purpose-designed bi-wire cable assembly\u003c\/strong\u003e, conveniently joined together at the amplifier end. Rather than simply splitting one full-range cable into four connectors, AudioQuest uses two different cable architectures optimized for the different demands of a loudspeaker’s treble and bass sections. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe ZERO section carries the delicate upper frequencies, while the BASS section handles the much higher current demands of the bass and midrange drivers. The result is AudioQuest’s preferred ThunderBird configuration for high-performance bi-wireable loudspeakers.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eA True ZERO + BASS Bi-Wire Design\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe ThunderBird ZERO BiWire COMBO provides:\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAmplifier End: 2 connections\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSpeaker End: 4 connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAt the amplifier, the ZERO and BASS sections are joined together so only one positive and one negative connection are required per channel. At the loudspeaker end, they separate into dedicated connections for the high- and low-frequency binding posts. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis gives you the performance advantages of separate ZERO and BASS cables without requiring four individual connections at each amplifier channel.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eThunderBird ZERO for Treble\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eZERO section\u003c\/strong\u003e is responsible for the loudspeaker's high-frequency input.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest's ZERO-Tech eliminates fixed characteristic impedance by preventing interaction between the cable's insulation and conductors. AudioQuest says this allows unrestricted transient-current transfer while maintaining more consistent RF Noise Dissipation across a wide frequency range. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSeparating the treble path also prevents the large magnetic fields associated with bass energy from interfering with the more delicate upper-frequency signal.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eThunderBird BASS for Bass \u0026amp; Midrange\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eBASS section\u003c\/strong\u003e is specifically optimized for the loudspeaker's bass and midrange inputs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest limits the BASS architecture to \u003cstrong\u003e10kHz and below\u003c\/strong\u003e and specifically states that it should not be used as a full-range or treble cable. Its purpose is to handle the substantially different electrical environment created by bass and midrange reproduction. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis specialized approach is what makes ThunderBird COMBO fundamentally different from a conventional single bi-wire cable.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003e100% Solid Perfect-Surface Copper+ (PSC+)\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThunderBird uses \u003cstrong\u003eSolid Perfect-Surface Copper+ (PSC+) conductors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSolid conductors eliminate strand interaction, while the extreme purity and exceptionally smooth surface of PSC+ are designed to minimize distortion caused by conductor grain boundaries.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest also direction-controls the conductors to facilitate RF Noise Dissipation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eZERO-Tech\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eZERO-Tech is central to the ThunderBird architecture.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eRather than designing the cable around a fixed characteristic impedance, AudioQuest eliminates interaction between the dielectric and conductors. The objective is \u003cstrong\u003euncompressed current transfer\u003c\/strong\u003e, particularly during demanding musical transients, while maintaining linear RF Noise Dissipation from octave to octave. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFor high-current amplifiers driving difficult loudspeaker loads, that unrestricted transient-current capability is an important part of ThunderBird's design.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eRF\/ND-Tech — BASS Section\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe ThunderBird BASS portion adds AudioQuest's patented \u003cstrong\u003eRF-on-ground Noise-Dissipation Technology (RF\/ND-Tech)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eCable ground leads can act as antennas and collect radio-frequency noise. RF\/ND-Tech uses a \u003cstrong\u003ecommon-mode phase-cancelling array\u003c\/strong\u003e to reduce this induced RF energy across the entire cable length. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis technology is specific to the BASS portion of the COMBO and is one reason AudioQuest pairs a specialized BASS cable with ZERO instead of simply using two identical ZERO cables.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eCarbon-Based Linearized Noise-Dissipation System\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThunderBird incorporates AudioQuest's \u003cstrong\u003eCarbon-Based Linearized Noise-Dissipation System (NDS)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eMultiple shields and a carbon-based resistive network convert much of the incoming RF energy into heat. Remaining unwanted energy is drained away from sensitive amplifier circuitry through direction-controlled signal and shield conductors. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe system is designed to operate across an extremely wide bandwidth rather than concentrating its effectiveness at only a few frequencies.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003e72V Dielectric-Bias System with Level-X RF Noise-Trap\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThunderBird also incorporates AudioQuest's \u003cstrong\u003e72V Dielectric-Bias System (DBS) with Level-X RF Noise-Trap\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBecause cable insulation behaves as a dielectric, it can store electrical energy. DBS continuously biases the dielectric, which AudioQuest says linearizes its behavior and improves wide-bandwidth Noise Dissipation.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe integrated \u003cstrong\u003eLevel-X RF Noise-Trap\u003c\/strong\u003e further pulls RF energy out of the cable, reducing its potential interaction with sensitive audio circuitry. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy AudioQuest Separates ZERO and BASS\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThis is the most important part of the product story.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBi-wiring allows the large magnetic fields associated with bass energy to travel separately from the delicate upper-frequency signal. AudioQuest takes that concept further by designing \u003cstrong\u003edifferent cables for each frequency range\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe configuration is:\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eThunderBird ZERO → Treble\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eThunderBird BASS → Bass \/ Midrange\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest specifically cautions against bi-wiring with \u003cstrong\u003etwo ZERO cables in parallel\u003c\/strong\u003e, because that configuration can create a very-high-frequency resonant peak. AudioQuest's intended architecture is always \u003cstrong\u003eZERO + BASS\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFor tri-wire loudspeakers, AudioQuest recommends ZERO for the treble and separate BASS cables for the midrange and bass inputs.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003ePremium Mythical Creatures Terminations\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThunderBird ZERO BiWire COMBO is available with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2 U-Spades → 4 U-Spades\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 Bananas → 4 Bananas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 Multi-Spades → 4 Multi-Spades\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eAudioQuest also offers a specialty V-Spade for certain applications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBecause Mythical Creatures cables are substantial in both diameter and weight, AudioQuest notes that a spade may provide better mechanical support where a banana plug cannot fully seat. The \u003cstrong\u003eU-Spade is the company's most universally compatible spade option\u003c\/strong\u003e, while banana connectors may be preferable with certain EU-compliant isolated amplifier binding posts. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eAvailable Lengths\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eAt \u003cstrong\u003eThe Grid HiFi, ThunderBird ZERO BiWire COMBO is sold exclusively as a stereo pair\u003c\/strong\u003e in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e8 ft \/ 2.4 m pair\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e10 ft \/ 3 m pair\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12 ft \/ 3.6 m pair\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 ft \/ 4.6 m pair\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSold as a \u003cstrong\u003estereo pair\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMythical Creatures Series\u003c\/li\u003e\n\u003cli\u003ePurpose-built for bi-wireable loudspeakers\u003c\/li\u003e\n\u003cli\u003eThunderBird ZERO section for treble\u003c\/li\u003e\n\u003cli\u003eThunderBird BASS section for bass and midrange\u003c\/li\u003e\n\u003cli\u003eZERO and BASS sections joined at amplifier end\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 connections at amplifier → 4 connections at speaker\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSolid Perfect-Surface Copper+ (PSC+) conductors\u003c\/li\u003e\n\u003cli\u003eZERO-Tech\u003c\/li\u003e\n\u003cli\u003eCarbon-Based Linearized Noise-Dissipation System\u003c\/li\u003e\n\u003cli\u003ePatented RF\/ND-Tech on BASS section\u003c\/li\u003e\n\u003cli\u003e72V Dielectric-Bias System\u003c\/li\u003e\n\u003cli\u003eLevel-X RF Noise-Trap\u003c\/li\u003e\n\u003cli\u003eDirection-Controlled conductors\u003c\/li\u003e\n\u003cli\u003eU-Spade, Banana, and Multi-Spade termination options \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eThunderBird BiWire COMBO vs. ThunderBird ZERO\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eFor a loudspeaker with a single pair of binding posts, \u003cstrong\u003eThunderBird ZERO\u003c\/strong\u003e is the appropriate full-range cable.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFor a loudspeaker with separate high- and low-frequency binding posts, \u003cstrong\u003eThunderBird ZERO BiWire COMBO\u003c\/strong\u003e provides AudioQuest's purpose-built bi-wire architecture in one convenient cable assembly.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe key distinction is that COMBO doesn't merely turn one ThunderBird ZERO into four speaker-end connectors. It combines \u003cstrong\u003etwo specialized cable designs—ZERO for treble and BASS for bass\/midrange—while joining them at the amplifier end.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThat is the point I would emphasize heavily on The Grid product page because it explains why this cable exists and why it's different from an ordinary bi-wire speaker cable.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy Buy AudioQuest ThunderBird ZERO BiWire COMBO from The Grid HiFi?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eAt this level, proper system matching matters. The loudspeaker must support bi-wiring, and amplifier binding posts, speaker terminals, cable length, and connector choice should all be considered before ordering.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eThe Grid HiFi can configure your ThunderBird ZERO BiWire COMBO pair specifically for your amplifier and loudspeakers\u003c\/strong\u003e, including the appropriate length and U-Spade, Banana, Multi-Spade, or specialty termination.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFor customers building reference-level systems, The Grid can also help determine whether \u003cstrong\u003eThunderBird ZERO Full-Range, separate ZERO + BASS cables, or the ZERO BiWire COMBO\u003c\/strong\u003e is the correct configuration.\u003c\/p\u003e","brand":"Audioquest","offers":[{"title":"8 ft \/ 2.4 m pair \/ 2 x Bananas \u003e 4 x Bananas","offer_id":55069442507089,"sku":null,"price":9550.0,"currency_code":"USD","in_stock":true},{"title":"8 ft \/ 2.4 m pair \/ 2 x U-Spades \u003e 4 x U-Spades","offer_id":55069442539857,"sku":null,"price":9550.0,"currency_code":"USD","in_stock":true},{"title":"8 ft \/ 2.4 m pair \/ 2 x Multi-Spades \u003e 4 x Multi-Spades","offer_id":55069442572625,"sku":null,"price":9550.0,"currency_code":"USD","in_stock":true},{"title":"10 ft \/ 3 m pair \/ 2 x Bananas \u003e 4 x Bananas","offer_id":55069442638161,"sku":null,"price":11150.0,"currency_code":"USD","in_stock":true},{"title":"10 ft \/ 3 m pair \/ 2 x U-Spades \u003e 4 x U-Spades","offer_id":55069442670929,"sku":null,"price":11150.0,"currency_code":"USD","in_stock":true},{"title":"10 ft \/ 3 m pair \/ 2 x Multi-Spades \u003e 4 x Multi-Spades","offer_id":55069442703697,"sku":null,"price":11150.0,"currency_code":"USD","in_stock":true},{"title":"12 ft \/ 3.6 m pair \/ 2 x Bananas \u003e 4 x Bananas","offer_id":55069442769233,"sku":null,"price":12750.0,"currency_code":"USD","in_stock":true},{"title":"12 ft \/ 3.6 m pair \/ 2 x U-Spades \u003e 4 x U-Spades","offer_id":55069442802001,"sku":null,"price":12750.0,"currency_code":"USD","in_stock":true},{"title":"12 ft \/ 3.6 m pair \/ 2 x Multi-Spades \u003e 4 x Multi-Spades","offer_id":55069442834769,"sku":null,"price":12750.0,"currency_code":"USD","in_stock":true},{"title":"15 ft \/ 4.6 m pair \/ 2 x Bananas \u003e 4 x Bananas","offer_id":55069442900305,"sku":null,"price":15150.0,"currency_code":"USD","in_stock":true},{"title":"15 ft \/ 4.6 m pair \/ 2 x U-Spades \u003e 4 x U-Spades","offer_id":55069442933073,"sku":null,"price":15150.0,"currency_code":"USD","in_stock":true},{"title":"15 ft \/ 4.6 m pair \/ 2 x Multi-Spades \u003e 4 x Multi-Spades","offer_id":55069442965841,"sku":null,"price":15150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/audioquest-thunderbird-zero-biwire-combo-tbirdbw8su-8-ft-24-m-pair-2-x-u-spades-4-x-u-spades-541172.webp?v=1790273940","url":"https:\/\/gridhifi.com\/products\/audioquest-rocket-88-single-biwire-speaker-cable-pair-the-grid-hifi-copy","provider":"The Grid","version":"1.0","type":"link"}