Made of particleboard and ABS plastic, the Lack rack comes in a variety of painted colors (and "birch effect"); it's 21.3 inches wide and deep, and 17.75 inches high. Ikea doesn't present the Lack as audio furniture; it's a side table, but audiophiles all over the world have used it to support their prized possessions. Build quality is surprisingly sturdy.
Granted, the Lack won't handle macho 100-pound high-end amplifiers, but it'll be just right for a CD player stacked on top of a cool running receiver or integrated amplifier. Or get two Lacks, sit 'em side-by-side, and put your turntable on one and the electronics on the other.
Oh, you're more of a home theater enthusiast? Ikea's got you covered. Check out the matching Lack Corner TV-bench ($59.99) that will support up to 143 pounds.