Acoustic Geometry Curve System room treatments Specifications

Sidebar 1: Specifications

Description: Versatile accessories to solve room acoustics problems.
Diffusors (all 42" H): CRV1442D Small Diffusor (14" W), $274.95. CRV2142D Medium Diffusor (21" W), $349.95. CRV3142D Large Diffusor (31" Width), $399.95.
Absorbers (all 42" H): CRV1442A Small Absorber (14" W), $245.99. CRV2142A Medium Absorber (21" W), $299.99. CRV3142A Large Absorber (31" W). $349.95.
Corner Trap (all 42" H): CRVTRAP Medium Corner Trap (21" W, includes CRVCT2042 Corner Trap frame and CRV2142D Medium Diffusor), $574.90.
Accessories: CRVSTAND2041 Stand gobo (42" H), $174.95. CRVCT2042 Corner Trap frame (42" H), $224.95. VC48 Voice Curve (48" H), $179.95.
Finishes: Prices based on Guilford fr701, Anchorage and Acoustic Suede. All other sizes and fabric options quoted on an individual basis. Approximate number of dealers: online for now.
Manufacturer: Acoustical Surfaces, Inc., 123 Columbia Court N., Chaska, MN 55318. Tel: (888) 227-6645. Fax: (952) 448-2613. Web:

Acoustical Surfaces, Inc.
123 Columbia Court N.
Chaska, MN 55318
(888) 227-6645

deckeda's picture

I've come to the conclusion that listening rooms sound only as good as the memories created in them.

For those of us that have yet to include room treatments, either commercial or hand-made, your review shows how it can be done in a controlled, sane manner.

But I wonder about those two IKEA floor lights. You're not concerned about those loose panels flapping around from low frequencies?

Erick Lichte's picture


No, I have never had a problem from the Ikea lights making noise from the bass in my room.  I've had problems with my front door rattling, the mirror in my bathroom buzzing and my teeth shaking, but not my Ikea lamps.

I haven't written much about my butcher block audio rack seen in the photos in this review.  About a year and a half ago I refinished a 100 year old butcher block, made of solid dovetailed maple.  It weighs about 250lbs and has had a profound effect on the sound of my system, adding a stillness and resolution that was very noticable.

Doctor Fine's picture

You might raise the whole process to a higher level if you would just move all that HiFi junk, the table,  the Rogue Amps , all that clutter---to the side or back of the room.  It is ruining any chance of correct room lock and directional cues and phase alignment.

Ask yourself if you would whip out a pair of headphones and instead of putting them over your ears, first stuff some ju-ju-bee candy into your ear passage and then fuss a lot with the ear pieces trying to get best sound.  It follows that some very sketchy sound would pass by all that junk and you certainly would not hear the drivers to best effect.

I don't want to hear excuses about hydra sized cables and short runs are best.  Everybody all ways has reasons to jam their precious junk right in the middle of the whole set up.  Most of the time I suspect so we can all Ooo and Awww over the junk. 

Just try running balanced like in a studio.  Or get some transformers and balance your single ended RCAs if you have to.  Or get rid of everything else and just leave the amps behind the speaks where they are at least out of the middle, the most  critical area.

Just saying.  Pretty hopeless reviewing stuff with ju-ju-bes in your ears old pal.  Until I took my own advice believe me I wandered in the wilderness myself.

If that were MY room,  I would use the Sumiko method to assure the speakers were correctly locked into the room, acoustically.  I would take lots of time using the Sumiko method to fine tune the image dimensions and sense of "life" also.

After I then had an inkling of final placement I would start experimenting with just the highly reflective window "as is."  Perhaps it would help the soundstage.  I would check that by then completely killing the front window with a big Sonex wall sized insert to see if your setup liked THAT.  If it did then you might consider some drapes so you can either look at the view or monitor with drapes closed.

But in every case I would not even bother with the room if the ju-ju-bees, I mean HiFi junk, was still right smack in the middle of MY front stage.

My personal experience is that room treatments are usually necessary primarily on the sides and behind your head.  These are areas that the stereo or mono recording really didn't encompass with information when captured.  Thus they should be set up to not have any racket going on which detracts from the recorded signal.

Anyway, have fun.  It is all a learning process and no one (especially ME) knows it all.