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Quadraspire engineered for audio furniture uses materials that have the required mechanical properties to reduce resonant energy significantly improving the sound of your hifi system.

Quadraspire makes three ranges of audio equipment racks that are more than something to put your Hifi equipment on. In your listening room, as volume is turned up you may notice sheet rock, picture frames, light fittings and A/C vents begin to rattle. Vibrations can be transient and are so small that they aren't always apparent. We can imagine how unwanted vibrations affect the tracing of the minute modulations in vinyl record grooves (about 30-50 µm in size but the modulations are about 100x smaller) and the reading of the microscopic pits on CDs (pit dimensions are about 1.6 µm track x 0.83 µm). Information will be lost in much the same way a photograph will be blurred if taken with shaky hands.

Loudspeaker manufacturers go to great lengths using bracing, dampening and advanced materials, to control loudspeaker enclosure resonances which cause coloration or simply soak up the sound. These effects are even more severe on shelves and cabinets and the presence of 2D standing waves on panel surfaces can easily be demonstrated using Chladni's technique where powder particles move from vibrating areas to stationary areas forming patterns. Background ground-borne vibrations are also present in our environment up to 0.1mm - 0.25mm/s 2-15Hz in residential areas; increasing with traffic.

Green friendly products

Chaldni patterns are the inspiration of Quadraspire's curved edge and intricate machining cut into the underside of the shelves. Musical instruments are shaped to control resonances but the orientation, thickness and composition of the wood and metal (seasoning and orientation of grain in violins, types of metal used in brass instruments) control the harmonic structure. Today Quadraspire uses mainly bamboo and nonferrous solid aluminum alloy columns. Quadraspire The X Reference range uses phosphor bronze columns (upgrade for the less expenive ranges)

Configurable products

Quadraspire's modular design gives the ability to add to, or reconfigure a rack with different shelf spacing as a system evolves over the years and really adds to the long term value. The overall basic design has not changed since the company was founded and further refinements, such as the bronze upgrade, have always been backwards compatible with existing racks. Quadraspire's product builder lets you easily design a complete rack in a variety of bamboo finishes.

Legacy products

Add on shelves for older Quadraspire Q4 Evo, SVT, QAVM racks, and 19mm and 32mm straight columns are available as a special order if your new equipment does not fit in your current Quadraspire rack. Contact us for with your requirements.

Model:
Quadraspire Q4 evo hifi furniture On Sale

Quadraspire Q4 EVO Rack

  • With a weight capacity of 175 lbs per shelf (80kg) the sound improving features of this classic Quadraspire design include curved and chamfered edges to reduce standing waves, underside machining to reduce vibration and dissipate energy, and non-ferrous columns that lessen RF interference
  • Dimensions: 23 1/4" (590mm) x 15 1/2"(590mm)
    internal (within columns): 18 3/4"(477mm) x 14 1/2" (368mm)
  • Spacings: 4" (100mm), 5 1/2" (140mm), 7" (180mm), 8 1/2" (216mm), 10" (256mm) or 12 3/4" (326mm) with Satin Black or Matt Silver columns
  • Finishes: Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo
  • Foot options: flat pad feet, casters, spikes, or spikes with floor protectors
  • Bronze isolation upgrade available for all shelf heights (adds 7 mm height)
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Quadraspire Sunoko-Vent SVT Rack

  • With a weight capacity of 175 lbs per shelf (80kg) the sound improving features of this classic Sunoko Vent (SVT) Quadraspire design include slots for ventilation and further machining to reduce vibration modes along the columns
  • Dimensions: 23 1/4"(590mm) x 18 1/2" (470mm)
    internal (within columns): 18 3/4"(477mm) x 14 1/2" (368mm)
  • Spacings: 4" (100mm), 5 1/2" (140mm), 7" (180mm), 8 1/2" (216mm), 10" (256mm) or 12 3/4" (326mm) with Satin Black or Matt Silver columns
  • Finishes: Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo
  • Foot options: flat pad feet, casters, spikes, or spikes with floor protectors
  • Bronze isolation upgrade available for all shelf heights (adds 7 mm height)
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Quadraspire Sunoko-Vent SVTL Rack

  • With a weight capacity of 175 lbs per shelf (80kg) the sound improving features of this classic Sunoko Vent (SVTL) Quadraspire design include slots for ventilation and further machining to reduce vibration modes along the columns
  • >Dimensions: 25 1/2"(645mm) x 22" (560mm)
    internal (within columns): 21 1/4"(540mm) x 18" (455mm)
  • Spacings: 4" (100mm), 5 1/2" (140mm), 7" (180mm), 8 1/2" (216mm), 10" (256mm) or 12 3/4" (326mm) with Satin Black or Matt Silver columns
  • Finishes: Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo
  • Foot options: flat pad feet, casters, spikes, or spikes with floor protectors
  • Bronze isolation upgrade available for all shelf heights (adds 7 mm height)
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Quadraspire Sunoko-Vent SV2T Rack

  • With a weight capacity of 350 lbs per shelf (160kg) the sound improving features of this classic Sunoko Vent (SV2T) Quadraspire design include slots for ventilation and further machining to reduce vibration modes along the columns
  • Dimensions: 43 1/2"(1105mm) x 18 1/2" (470mm)
    internal (within columns: 18 3/4"(477mm) x 14 1/2" (368mm)
  • Spacings: 4" (100mm), 5 1/2" (140mm), 7" (180mm), 8 1/2" (216mm), 10" (256mm) or 12 3/4" (326mm) with Satin Black or Matt Silver columns
  • Finishes: Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo
  • Foot options: flat pad feet, casters, spikes, or spikes with floor protectors
  • Bronze isolation upgrade available for all shelf heights (adds 7 mm height)
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Quadraspire Sunoko-Vent SV3T Rack

  • With a weight capacity of 525 lbs per shelf (240kg) the sound improving features of this classic Sunoko Vent (SV3T) Quadraspire design include slots for ventilation and further machining to reduce vibration modes along the columns
  • Dimensions: 63 1/2"(1620mm) x 18 1/2" (470mm)
    internal (within columns): 18 3/4"(477mm) x 14 1/2" (368mm)
  • Spacings: 4" (100mm), 5 1/2" (140mm), 7" (180mm), 8 1/2" (216mm), 10" (256mm) or 12 3/4" (326mm) with Satin Black or Matt Silver columns
  • Finishes: Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo
  • Foot options: flat pad feet, casters, spikes, or spikes with floor protectors
  • Bronze isolation upgrade available for all shelf heights (adds 7 mm height)
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Quadraspire X Reference Rack

  • Using Bamboo (nature's carbon fiber), aluminum alloy, phosphor bronze, special coatings, and advanced engineering, this double frame design is Quadraspire's ultimate approach in vibration control, energy dissipation, and isolating ability
  • Outer frame shelf external dimensions: 28 1/4"(720mm) x 23 1/4" (590mm)
    internal (within columns) dimensions: 23 1/4"(590mm) x 18 1/2" (470mm)
  • Inner frame shelf external dimensions: 23 1/4"(590mm) x 18 1/2" (470mm)
    internal (within columns) dimensions: 18 3/4"(477mm) x 14 1/2" (368mm)
  • Finishes: X-frame black Nextel Paint with 44mm diameter curved black columns. Shelves come in Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo and foot options are spikes, or spikes with floor protectors
  • Spacings internal/external:
    5.1" (130mm) /7.9" (200mm)
    7.1" (180mm) / 9.4" (250mm)
    9.1" (230mm) / 11.8" (300mm)
    11.0" (280mm) / 13.8" (350mm)
    13.0" (330mm) / 15.8" (400mm)
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Quadraspire Siganture X Reference Rack

  • Using Bamboo (nature's carbon fiber), aluminum alloy, phosphor bronze, special coatings, and advanced engineering, this double frame design is Quadraspire's ultimate approach in vibration control, energy dissipation, and isolating ability
  • Outer frame shelf external dimensions: 28 1/4"(720mm) x 23 1/4" (590mm)
    internal (within columns) dimensions: 23 1/4"(590mm) x 18 1/2" (470mm)
  • Inner frame shelf external dimensions: 23 1/4"(590mm) x 18 1/2" (470mm)
    internal (within columns) dimensions: 18 3/4"(477mm) x 14 1/2" (368mm)
  • Finishes: X-frame black or Orange Nextel Paint with 44mm diameter raw aluminium columns. Shelves come in Black Bamboo, Dark Bamboo, Cherry Bamboo and Natural Bamboo and foot options are spikes, or spikes with floor protectors
  • Spacings internal/external:
    5.1" (130mm) /7.9" (200mm)
    7.1" (180mm) / 9.4" (250mm)
    9.1" (230mm) / 11.8" (300mm)
    11.0" (280mm) / 13.8" (350mm)
    13.0" (330mm) / 15.8" (400mm)
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Quadraspire QAVM Rack

  • Larger double wide rack suitable for small flat panel TV stand and center channel speaker housing with a weight capacity of 220 lbs per shelf (100kg)
  • Shelf dimensions: 42 3/4" x 19 3/4" (external)
  • Configure rack using black or silver finish 32 mm staight-sided columns in the following heights:
    4", 5 1/2", 7", 8 1/2", 10" or 12 3/4"
  • Finishes: Cherry, Black Ash, Oak, Wenger, Maple, Clear or Sandblasted Glass
  • Custom order with an 12 week delivery time
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Quadraspire Bronze Upgrade

  • Based on X-Reference research
  • Broadens harmonic response spectrum for more open and natural sound
  • Additional top shelf spikes or bottom spikes only
  • Available for Sunoko Vent and Q4 Evo
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Quadraspire QX7 Floor Protectors

  • Fit under spikes
  • Machined stainless steel housing with isolating inner support
  • Improves bass response and image solidarity
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