Equipment rack
I am always doing that which I cannot do, in order that I may learn how to do it. ~ Pablo Picasso

With an aim for strength and a pleasing, yet simple appearance, I've decided to use 1 inch plywood for the shelves and lower walls, and 1 inch MDF for the upper walls. For the most accurate results, I had the timber cut for me by the supplier. Overall cost was about A$200.

And the final result (below) after a few days painting and gluing together. The shelves were coated with acrylic polyurethane, the sides, with an acrylic enamel.

After a few months use, I decided that some cooling around the amplifiers would be desirable. Maybe I should have allowed about 3 inches spacing above the amps, but then the appearance wouldn't be as neat. 3 x 9cm Silent Cat Thermaltake PC case fans were chosen for cooling duties, one for each of the lower 3 shelves. They run at about 21dBA noise level at full power. However, I will be running them at about 6V so it should be even quieter and consume only about 1W each, so they can be left on permanently. An adjustable DC plugpack allows me to adjust the voltage and hence speed for the best performance/noise tradeoff.

The final result - 3 fans connected via a DC plug/socket arrangement to the DC power pack at about 6V. They are held in place with velco. Noise is inaudible from 2 metres, and the temperature of the amps now stays nice and cool.

July 2009 Update

I've decided to further improve cooling by creating some slots along the sides of the cabinet. Also the fans are now suspended from screws using rubber bands. This completely eliminates any coupling of vibrations to the cabinet.

HP laptop media centre
with Windows Vista
Oppo BDP-83
blu-ray / SACD / DVD-A
Primare Stereo
Power Amplifier
Primare 3-channel
power amplifier
NAD M15 pre/processor
Belkin power board
& 1 Terabyte hard-drive