Grand Prix Audio

Monaco Modular

Introduced 2001$2,495 MSRP

The Monaco Modular is Grand Prix Audio's fully modular component-isolation rack system, built from 2"-diameter 304 stainless-steel (or carbon-fiber-reinforced) support columns joined by proprietary "True Vector" couplings, with carbon-fiber shelf supports interfaced to clear acrylic shelves via weight-matched Sorbothane dampers. The system is assembled from stackable base, short, tall, and extra-tall modules of differing heights, letting owners mix module heights to size the rack precisely to their components, and it can be upgraded with Grand Prix's own Apex ceramic-ball footers and bearings for further vibration control.

MSRP

$2,495

Used market · Good

$3,000

+20% vs MSRP

as of Sep 1, 2026

Sell or trade this Add to my system

MSRP to used market

From $2,495 at launch to $3,000 today.

Specifications

Weight: 58–76 lb without ballast; 122–140 lb with lead-shot ballast added (ballast capacity 64 lb) for a 4-shelf configuration
Materials: Carbon-fiber epoxy chassis platforms; 304 stainless-steel support columns (2" diameter) with 6061-T6 aluminum closures; stainless-steel "True Vector" couplings and spikes; clear acrylic shelves with Sorbothane tuning dampers; stock tungsten-carbide bearings, optional ceramic silicon-nitride upgrade
Load capacity: Rated to support more than 600 lb overall; individual reviewer cites 150 lb per shelf, with larger capacities by custom order
Maintenance note: Sorbothane shelf dampers recommended for replacement roughly every 18 months as effectiveness declines with age
Shelf dimensions: Standard shelf 21" W × 23.3" D (17.75" D for short-wheelbase frame); each shelf level approximately 5.875" high per Stereophile's measured unit
Shelf configuration: Modular Base (two shelves, 10.25" opening), Extra Tall (one shelf, 9.75" opening), Tall (one shelf, 7.25" opening), and Short (one shelf, 5.5" opening) modules combine to build 3-, 4-, or 5-shelf systems
Isolation technology: Multi-Stage Isolation per module; True Vector Coupling for alignment; twin O-ring decouplers between modules; carbon-fiber shelf supports with Sorbothane interface; optional Apex footers (carbon-composite cone with proprietary aerospace-derived polymer core and hardened-steel/ceramic ball) replacing stock spikes, tested to over 1,000 lb load capacity
Price stereophile era: 3-shelf $2,495; 4-shelf $3,495; 5-shelf $4,495; base module $1,500; short/tall module $999; amp stand $999; F1 carbon-fiber/Kevlar shelf $850
Overall dimensions stereophile review: 34" W × 28.5" D; overall height varies with configuration