IsoAcoustics GAIA Titan Theis Speaker Isolators - Set of 4

Threaded Isolation Feet for Speakers up to 320 Pounds

The IsoAcoustics GAIA Titan Theis is sold as a set of four, and every speaker takes one set. It is the entry point to the Titan range, built for floorstanding speakers and subwoofers of up to 320 pounds. The feet screw into the inserts the factory spikes came out of.

A big floorstander drives a great deal of energy into the floor, and the floor sends it back into the cabinet. IsoAcoustics designs the GAIA Titan to manage that energy inside the foot. The housing is fixed to the speaker, and only the lower isolator touches the floor.

Built for the Cabinets a Standard GAIA Cannot Carry

Fit, Load and Materials

A set of four Titan Theis carries 320 pounds, so each foot handles 80. No minimum is published. A foot carrying far less than its rating never reaches its working range, so a 200-pound speaker belongs on the GAIA I. The IsoAcoustics online weight selector names the right model for any speaker weight.

Each foot is 2.75 inches across and 2 inches tall, in a machined stainless steel housing. It replaces the spike or foot rather than sitting under it, so the change in height depends on the spike that came out. Three thread adaptors are included: 1/2 inch-13, M8-1.25 and M14-2.0.

If your speaker uses another thread, IsoAcoustics supplies other sizes, and its GAIA thread-size guide explains how to measure. The lower isolator grips a hard floor. On thick carpet, the matching Titan Theis carpet spikes give it a solid surface to stand on.

What Reviewers Are Saying

Theo Nicolakis ran the GAIA Titan Theis under his RBH speakers for Audioholics. He wrote: “In every instance the GAIA isolators improved the top to bottom performance of my two reference setups.”

Stereophile lists the GAIA-Titan Theis in its Recommended Components for 2025, its twice-yearly roundup of gear its own reviewers have used and stand behind.

Who Is the GAIA Titan Theis Best For?

• You own floorstanders of 220 to 320 pounds each — a set of four Titan Theis carries 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 concrete — the lower isolator grips a hard surface without spikes marking it
• You run a very large subwoofer — IsoAcoustics rates the Titan Theis for subwoofers as well as speakers, up to the same 320 pounds
• Your speakers weigh less than 220 pounds each — the GAIA I, rated 220 pounds a set, keeps a lighter cabinet inside its working range

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 Titan 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, since the lower isolators grip the floor. On thick carpet, set a carpet spike disc under each foot. Level the cabinet, check that the logos face forward, and play.

Pairs Well With

What most GAIA Titan Theis 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 Titan Theis is sold as a set of four, so order one set per speaker or two 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, Titan Theis up to 320. IsoAcoustics makes heavier Titan models above that. The IsoAcoustics online weight selector settles borderline weights.

Will they fit my speaker's threads?

Adaptors for 1/2 inch-13, M8-1.25 and M14-2.0 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 Titan Theis carpet spikes, which give each foot a solid surface.

See It in Action

IsoAcoustics fits GAIA isolators to a floorstanding speaker, then covers moving the speaker into place and the carpet discs:

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