IsoAcoustics ISO-155 Isolation Stands - Pair

The Mid-Size ISO Stand for Nearfield Monitors up to 40 Pounds

The IsoAcoustics ISO-155 is sold as a pair, and each speaker takes one stand. It carries a nearfield monitor or bookshelf speaker of up to 40 pounds, raises it to one of two heights, and tilts it up to 6.5 degrees to aim the tweeter at the listener.

A monitor on a desk or console drives energy into the surface, and the surface returns it to the cabinet. IsoAcoustics designs the ISO stands with isolators in the top and bottom frames, so the speaker rides on the isolators instead of the desk.

Sized for the Monitors Most Small Studios Own

Fit, Load and Materials

Each ISO-155 carries up to 40 pounds in the short setting and 35 pounds in the tall setting. No minimum is published, but an isolator loaded far under its rating never reaches its working range, so a 10-pound speaker belongs on the ISO-130. Heavier monitors step up to the ISO-200.

The footprint is 6.1 inches wide by 7.5 inches deep. With the short tubes the stand is 3 inches tall; with the long tubes, 8.2 inches. Tilt inserts angle the speaker up or down by up to 6.5 degrees, and IsoAcoustics counts 14 combinations of height and tilt.

The stand ships as a kit of frames, tubes and inserts and assembles by hand. It is made for a desk, console or shelf. On a floor stand with a small top plate, the Aperta Plates give the ISO-155 a full-size surface to sit on.

What Reviewers Are Saying

Chris Corfield reviewed the ISO-155 for MusicRadar and called them “a great example of specialist on-desk stands that provide the isolation and elevation needed to mix and master accurately.”

Who Is the ISO-155 Best For?

• You run nearfield monitors of 20 to 40 pounds each — one ISO-155 per speaker carries them inside the working range
• Your monitors sit on a desk or console bridge — two heights and the tilt inserts bring the tweeter to ear level
• You want the speaker off the surface without gluing or screwing — it sits on the top frame and lifts straight off
• You have a floor stand with a small top plate — the Aperta Plates extend the surface so the stand sits flat
• Your monitors weigh more than 40 pounds each — the ISO-200 carries 75 pounds a stand

How Do You Set Them Up?

Choose the short or long tubes, press them into the isolators in the bottom frame, and fit the top frame. Add the tilt inserts if the tweeter needs to point up or down. Set the stand where the speaker will go, logo forward, and center the speaker on the top frame. Sit down and listen.

Pairs Well With

What most ISO-155 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?

One stand per speaker. The ISO-155 is sold as a pair, so one order covers a stereo pair of monitors. A third speaker needs one more stand.

Which ISO stand fits my speakers?

Go by the weight and base of one speaker: ISO-130 up to 20 pounds, ISO-155 up to 40, ISO-200 up to 75. The IsoAcoustics online weight selector settles borderline cases.

How do the height and tilt adjust?

Short tubes give 3 inches of height and long tubes 8.2 inches. The tilt inserts angle the stand up to 6.5 degrees up or down. In the tall setting the rating drops to 35 pounds.

Will it sit on a floor stand?

Yes, if the top plate is at least 6.1 by 7.5 inches. For a smaller top plate, the Aperta Plates give the stand a full-size surface.

See It in Action

Michael Sorrentino sets up the ISO-155 under his studio monitors and compares them with the stands he used before:

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