Lowell offers a Vari-rack LVR with a variable depth. Maximize space, you can set it to exactly 23".
Never used it, but they've shown it at CEDIA.
Looks like a Slim5/skeleton rack, but adjustable.
TB A+ Partner Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense. -Buddha