IsoAcoustics GAIA II Speaker Isolators - Set of 4
Category: other
The Mid-Size GAIA for Floorstanders up to 120 Pounds
The IsoAcoustics GAIA II is the middle model of the original GAIA range. It is sold here singly and as a set of four, and each speaker takes four. A set carries a floorstanding speaker or subwoofer of up to 120 pounds. The feet thread into the inserts the factory spikes came out of.
Every floorstander pushes energy into the floor, and the floor pushes it back into the cabinet. IsoAcoustics designs the GAIA to manage that energy inside the foot. The housing is fixed to the speaker, and only the lower isolator touches the floor.
Sized for the Floorstanders Most Living Rooms Actually Hold
Fit, Load and Materials
A set of four GAIA II carries 120 pounds, so each foot handles 30. No minimum is published. A foot carrying far less than its rating never settles into its working range. A 60-pound speaker belongs on the GAIA III and a 150-pound speaker on the GAIA I. The IsoAcoustics online weight selector sorts this by weight.
Each GAIA II is 2 inches across and 1.7 inches tall, in a machined dark chrome metal housing. It replaces the spike or foot rather than sitting under it. The change in height depends on what came out. Three thread adaptors are included: M6-1.0, M8-1.25 and 1/4 inch-20.
If your speaker uses another thread, IsoAcoustics supplies other sizes. Its GAIA thread-size guide explains how to measure. The lower isolator is made to grip a hard floor. On thick carpet, the matching carpet discs give it a solid surface to stand on.
What Reviewers Are Saying
Bob Barrett ran GAIA II under his speakers for HomeTheaterReview. He wrote: “With every track, I consistently heard tighter bass and lower midrange, with greater focus and depth.”
Carlo Lo Rasso reviewed the GAIA II for Secrets of Home Theater and High Fidelity. He found them “a noticeable and positive improvement in the sonic performance of the Revel F228Be.”
Hi-Fi Choice gave the GAIA II a five-star review in 2017, and Stereophile named the GAIA and OREA isolation feet its Accessory of 2019.
Who Is the GAIA II Best For?
- You own floorstanders of 70 to 120 pounds each — four GAIA II per speaker carry them inside the working range
- Your speakers have threaded spike inserts — the housing screws into the cabinet, so the foot moves with the speaker
- Your floor is hardwood, tile or laminate — the lower isolator grips a hard surface without spikes marking it
- You run a mid-size subwoofer — IsoAcoustics rates the GAIA II for subwoofers up to 120 pounds as well as speakers
- Your speakers weigh more than 120 pounds each — the GAIA I carries 220 pounds a set
How Do You Set Them Up?
Unscrew the factory spikes and match the thread. One side of the adaptor goes into the speaker and the other into the GAIA housing. Thread each stud in at least four full turns. Turn the logo to face your seat, then tighten the locking nut against the base of the speaker.
Lift the speaker into place rather than sliding it, because the lower isolators grip the floor. On thick carpet, set a carpet disc under each foot. Level the cabinet, check that the logos face forward, and play.
Pairs Well With
What most GAIA II owners shop next.
- Speaker stands — get the tweeters to ear height before you isolate
- Floor and carpet protection discs — a firm footing on carpet or a soft floor
- Speaker cables — the next link in the chain after the speakers are settled
- Speakers — the bookshelf and desktop models these are made to sit under
Frequently Asked Questions
How many do I need?
Four per speaker, one at each corner, matching the spikes they replace. The GAIA II is sold singly and as a set of four. Order one set per speaker, or eight for a stereo pair.
Which GAIA fits my speakers?
Go by the weight of one speaker: GAIA III up to 70 pounds, GAIA II up to 120, GAIA I up to 220. The IsoAcoustics online weight selector settles borderline weights in a few seconds.
Will they fit my speaker's threads?
Adaptors for M6-1.0, M8-1.25 and 1/4 inch-20 come in the box. If your speaker uses another size, IsoAcoustics supplies other adaptors. Its thread-size guide shows how to measure the insert.
Can I use them on carpet?
Yes. On low pile the lower isolator grips through the carpet. On thicker carpet or an underpad, IsoAcoustics recommends its GAIA II carpet discs, which give each foot a solid surface.
How much height do they add?
Each GAIA II stands 1.7 inches tall. It replaces the spike or foot rather than stacking on it, so the net change depends on the spike that came out. Measure before you order.
See It in Action
IsoAcoustics fits GAIA II to a pair of PSB Imagine T3 floorstanders and shows the thread adaptors and the locking nut in use:
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