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Quadraspire Q4 EVO 4-Shelf HiFi Rack

Available in 1-3 days
Regular price $1,920.00

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Quadraspire Q4 EVO Amp Stand
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The Quadraspire Q4 EVO 4-Shelf HiFi Rack in black is the Q4 EVO in its most common configuration: four machined, solid bamboo shelves on curved aluminum columns, spaced 10.1, 10.1 and 8.5 inches from the bottom up, all in black. It is ready to order as it stands, made in Britain by Quadraspire, and every part of it can still be changed in our rack builder if your gear needs different spacing.

Key Features of the Quadraspire Q4 EVO 4-Shelf HiFi Rack

  • Four Solid Bamboo Shelves: Black bamboo ply, machined to reduce resonance, with chamfered edges to help dissipate energy.
  • Solid Aluminum SV Columns: 32 mm curved columns in aluminum, which Quadraspire uses because steel tube can resonate.
  • Spacing for the Heavy Pieces: 10.1 inches above the bottom two shelves for power amps and tube amps, 8.5 inches above the third, and an open top shelf for a turntable.
  • 175 lb Per Shelf: Each of the four levels is rated to 80 kg.
  • Spikes Included: The rack stands on spikes, with the bottom shelf 3.9 inches off the floor and 35.0 inches tall overall.
  • No Parallel Lines: The curved shelf and column shapes avoid the parallel lines that encourage resonance, the same idea behind most musical instruments.
  • Made in Britain: Quadraspire has built its racks in England since 1995.

Who Is Quadraspire?

Quadraspire is a British maker of hi-fi furniture, founded in 1995 and now building racks in Hallatrow, England. Their argument is simple: what you place your hi-fi on affects how it performs. Quadraspire picks every material and shape to reduce resonance, with the stated goal of lowering the noise floor and opening up the soundstage.

Why the Materials Matter

Each Q4 EVO shelf is solid bamboo ply. Quadraspire tested other shelf materials, found that glass and similar surfaces resonate, and settled on bamboo because it suppresses vibration (it is also carbon neutral).

Quadraspire solid bamboo ply, shelf edge close-up showing the laminated layers

Every shelf is then machined to cut resonance further, and its edges are chamfered, which Quadraspire says helps dissipate energy.

Quadraspire Q4 EVO natural bamboo shelf corner, close-up of the chamfered edge

The columns and feet are aluminum rather than steel tube. Steel tube can resonate and distort the sound, and aluminum has much less resonance, so Quadraspire uses it for every column and foot.

Quadraspire solid aluminum bar stock used to machine the columns

The shelves and columns are curved on purpose: parallel lines on a rectangular shelf encourage resonance, so the Q4 EVO avoids them wherever it can.

Quadraspire aluminum columns in five heights, side view

The Spacing, Shelf by Shelf

From the floor up, this rack uses columns of 256, 256 and 216 mm, which is 10.1, 10.1 and 8.5 inches. The two lower shelves get the most height, so that is where a power amp or a tube amp goes. The third shelf has 8.5 inches, room for a tall integrated or a small tube amp, and the top shelf has nothing above it, so a turntable lid opens all the way. Overall the rack stands 35.0 inches tall on its spikes.

The shelf itself is 23.2 x 15.6 inches, with 477 x 297 mm (18.8 x 11.7 in) between the columns. Check the depth of your deepest component against that before you order; if it needs more, the Q4L EVO uses the same parts with a deeper shelf.

Quadraspire Q4 EVO 4-Shelf HiFi Rack heights diagram, 3.9 in to the bottom shelf, then 10.1, 10.1 and 8.5 in between shelves, 35.0 in overall Quadraspire Q4 EVO shelf dimensions, 590 x 395 mm top view diagram

Build Your Own Q4 EVO

This rack is one way to build a Q4 EVO. In our builder you pick one to seven shelves, the space above each, one of four bamboo finishes, black or silver columns, and spikes, flat feet, floor protectors or casters. It draws the rack to scale and prices it as you go, and Mike can check the design before you order.

Here is the Q4 EVO in the other three bamboo finishes. Tap one to open the builder in that finish.

Build Your Q4 EVO

Add a Matching Q4 EVO Amp Stand

A big power amp, or a pair of monoblocks, often sits on the floor beside the rack instead of on a shelf. The Quadraspire Q4 EVO Amp Stand is a single Q4 EVO shelf on spikes in the same black finish, and adding one or two with this rack takes about 10% off each stand.

The Quadraspire Rack Line, Compared

How the Q4 EVO sits among the ready-made Quadraspire racks. Every one here is in black, ready to order: four shelves, or three on the wide SV2T and SV3T.

Quadraspire Q4 EVO You're viewing
$1,920
Quadraspire's modular rack: a plain, machined bamboo shelf at 23.2 x 15.6 in on 32 mm SV columns, rated to 175 lb per shelf.
$2,200
The same plain, machined shelf at full depth, 23.2 x 18.5 in, for components that need more room front to back.
$2,600
Quadraspire's slotted performance shelf at 23.2 x 18.5 in, on the same 32 mm columns.
$3,400
The slotted shelf made larger, 25.4 x 22.0 in, for components that outgrow a 23.2 in wide shelf.
$3,600
Three shelves, 26.1 in tall. Two bays side by side on a 43.5 in wide shelf with six columns per level, rated to 350 lb per shelf.
$5,700
Three shelves, 26.1 in tall. Three bays across a 63.8 in wide shelf with eight columns per level, rated to 525 lb per shelf.
$9,000
Quadraspire's X frame: thicker 44 mm columns and bronze feet with bronze spikes as standard, around a 28.3 x 23.2 in frame.
$9,800
The X-Reference frame carrying the larger 25.4 x 22.0 in SVTL shelf, on 44 mm columns with bronze feet and bronze spikes.
$10,800
Black Nextel shelves and X frames on 44 mm natural aluminum (silver) columns, with bronze feet and spikes. The X frames also come in orange Nextel.

Pick the Q4 EVO for the plain, machined shelf in the most compact footprint. Go to the Q4L EVO when a component is deeper than 15.6 in, to the SVT for the slotted performance shelf, to the SVTL for a larger shelf, to the SV2T or SV3T to spread a system out side by side, or to the X-Reference for the 44 mm frame on bronze feet. Browse every option in Quadraspire HiFi Racks.

The Listening Room Difference

We're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Quadraspire Q4 EVO 4-Shelf HiFi Rack Specifications

Specification Detail
Model Quadraspire Q4 EVO
Shelves 4
Shelf Finish Black bamboo
Shelf Material Solid bamboo ply
Shelf Size 590 x 395 mm (23.2 x 15.6 in)
Columns SV 32 mm curved, solid aluminum, black
Column Lengths (bottom to top) 256, 256, 216 mm (10.1, 10.1, 8.5 in)
Feet Spikes
Bottom Shelf Height 100 mm (3.9 in)
Overall Height 888 mm (35.0 in)
Weight Limit 80 kg (175 lb) per shelf
Made In Britain