This is a custom made Velvet Audio SA-24 summing amp based on a Neumann V475-2a module. A passive circuit with Volume / MUTE / PAN / MASTER VOL was added to it which does not affect the nice colored Vintage sound of the dual channel module (floating transformer balanced inputs & outputs). The rack has 24 XLR inputs, XLR Master outputs as also a stereo buss input for connecting SA-24EX 24 channel extension modules. It comes with an external power supply (100V to 240V). Production time is about two weeks. Feel free to ask for different designs, connectors, colors…. The picture from the back shows a special version with direct outs! See also my other auctions!! The item “Neumann 24 Channel Vintage Summing Amp / Mixer V475-2″ is in sale since Thursday, July 28, 2016. This item is in the category “Musical Instruments & Gear\Pro Audio Equipment\Vintage Pro Audio Equipment”. The seller is “velvet_audio” and is located in Hamburg. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.