Adam P wrote:Another option for a DIY rack, depending on your level of comfort and knowledge, would be to get card edge connectors and wire each module s power and I/O discretely. This is what many people who rack API 312 or similar preamps do. You would need to source or build an appropriately sized power supply.or even cheaper, soldering Screw Terminal Blocks on the board. I racked 2 pairs of five fish mic preamps this way before I owned a 500 rack. over all, a 10 slot rack will probable still be cheaper than trying to DIY the racks. on the other hand it's fun to build them!