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Overview

IsoAcoustics GAIA III | Speaker & Subwoofer Isolation Feet

The IsoAcoustics GAIA III is a high-performance speaker isolation footer designed for floorstanding loudspeakers and subwoofers weighing up to 70 lbs (32 kg) per set of four. Compact, beautifully finished and engineered specifically for loudspeaker isolation, GAIA III replaces the speaker’s factory spikes or feet to reduce structure-borne vibration and unwanted interaction between the loudspeaker and supporting surface. IsoAcoustics

GAIA III uses IsoAcoustics’ patented isolation technology to manage mechanical energy while maintaining speaker stability and alignment. By reducing vibration transmitted through the floor and attenuating reflections from hard supporting surfaces, it is designed to improve clarity, openness, focus and spatial definition. IsoAcoustics

Patented IsoAcoustics Isolation Technology

Conventional spikes create a rigid mechanical connection between a speaker and the floor. GAIA III takes a different approach.

Only the lower isolator contacts the supporting surface, so vibration does not simply travel through the metal housing. The internal isolation system provides a controlled path for mechanical energy to dissipate while resisting lateral movement and oscillation. IsoAcoustics

The result is an isolation system designed specifically around the forces generated by a loudspeaker rather than a generic equipment footer.

Designed for Floorstanding Speakers and Subwoofers

The GAIA III supports up to 70 lbs (32 kg) per set of four, making it ideal for smaller and medium-size floorstanding loudspeakers as well as compatible subwoofers. IsoAcoustics

Its compact 1.7-inch diameter allows GAIA III to integrate cleanly beneath a speaker without dominating its appearance, while its stainless-steel construction and refined finish complement premium loudspeaker designs.

Direct Threaded Installation

GAIA III is designed to replace the existing spikes or threaded feet on the loudspeaker or subwoofer.

Threading the GAIA directly into the speaker creates a secure connection between the cabinet and the upper portion of the isolator. The lower portion interfaces with the supporting surface, allowing the internal isolation system to manage the mechanical energy between them. IsoAcoustics

Each set includes adapters for three common speaker thread sizes:

  • M6-1.0
  • M8-1.25
  • ¼"-20

Alternative thread adapters are available through IsoAcoustics distributors for speakers using different thread sizes. IsoAcoustics

Directional Installation for Optimal Performance

GAIA III is a directional isolator. IsoAcoustics recommends installing each footer with the logo facing the listening position, or rotated 180 degrees, so the isolator is correctly aligned with the speaker's motive forces. IsoAcoustics

This directional design allows GAIA III to provide isolation while resisting lateral movement and oscillation, helping maintain the loudspeaker's position and alignment with the listener.

Built for High-End Loudspeaker Systems

GAIA III is manufactured from high-quality stainless steel and combines its isolation technology with a polished, understated appearance appropriate for premium HiFi systems. IsoAcoustics

Unlike isolation products that simply place compliant material underneath a speaker, GAIA III is mechanically attached to the speaker itself. This creates an integrated connection between the loudspeaker, isolator and supporting surface.

Carpeted Floors

For speakers installed on carpet, optional GAIA Carpet Disks provide a solid interface underneath each isolator. The stainless-steel disks are designed to provide stable support on thicker carpet and carpet with underpads while allowing the GAIA isolators to perform as intended. IsoAcoustics

GAIA III Technical Specifications

Specification Details
Model GAIA III
Product Type Speaker / Subwoofer Isolation Feet
Maximum Supported Weight 70 lbs (32 kg) per set of 4
Width 1.7 in. (43mm)
Height 1.5 in. (39mm)
Included Thread Sizes M6-1.0, M8-1.25, ¼"-20
Quantity 4 per box
Construction Stainless Steel
Installation Replaces existing threaded spikes or feet
Orientation Logo toward listening position or 180° opposite
Application Floorstanding speakers and subwoofers

These specifications are confirmed by IsoAcoustics specifically for the GAIA III. IsoAcoustics

Choosing the Correct GAIA Model

The original GAIA Series provides three sizes for different speaker weight ranges: GAIA I supports up to 220 lbs (100 kg), GAIA II up to 120 lbs (54 kg), and GAIA III up to 70 lbs (32 kg), each per set of four.

Selecting the correct model based on the speaker's total weight is important because each GAIA isolator is engineered to perform within a specific load range.

IsoAcoustics GAIA III at The Grid HiFi

The IsoAcoustics GAIA III provides an elegant and highly engineered alternative to conventional loudspeaker spikes. Its patented isolation design, direct threaded installation and 70-lb capacity make it an excellent upgrade for appropriately sized floorstanding speakers and subwoofers where controlling mechanical vibration is an important part of system setup.

At The Grid HiFi in Houston, Texas, we can help determine the correct IsoAcoustics GAIA model and thread adapter for your specific loudspeaker or subwoofer, ensuring proper fit, orientation and weight capacity.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.