Phil,

Thanks for your comments! I actually like to spend a lot of my time in the studio but, my 3 year old son doesn't let me.

The acoustic panels have rigid fiber glass insulation inside. The insulation is made by Owen Corning model 703. It absorbs all the high and mid frequencies and some low frequencies. The panels on corner (bass traps) are designed to absorb low frequencies. I was able to get rid of most of the flutter echo in the room with these panels. I may have to add some more on the ceiling I think. I will be taking some frequency sweep measurements in the room soon to find out what exactly I need.

The panels are wrapped in acoustic fabric, made by Guilford of Maine. This fabric is specially designed for this purpose, it is acoustically transparent so, the insulation absorbs all the sound.

Now about your wall plates. I bought blank wall plates from Home Depot for about $0.70 a piece, then bought only connectors from parts express: http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=092-124

Drill a hole through blank wall plate and install these connectors into it and you have a very cheap custom made wall plate. It will come out to be less than $2.00 per plate.

I have two 1/4" and two XLR on a double gang wall plate for around $7.00 a piece, much cheaper than $45.00 that some plates were selling for.

[This message has been edited by harosha (edited 02-28-2005).]