Like i don't have enough projects going on at once I'm tired of waiting for someone to release boards that do this right. so here is mine in progress http://gilmore.chem.northwestern.edu/attenuator2.jpg Because i don't like any standing power on the relays, and i don't like the resistive drive either, this had to be a bit bigger. board is 3.4 x 10 inches. stereo single board, or two for balanced.