I'm selling my SoTM dx-usbHD with the superclock sCLK-2224 upgrade (list price $950). This takes usb input, reclocks it and outputs coax, optical or aes/ebu. This unit is ideal for DACs that would best on inputs other than USB (in my case, my DAC sounds vastly superior with aes/ebu input). I'm selling this as I'm saving up for an internal upgrade ot the DAC that includes an internal server which includes a implementation of this "reclocker to aes/ebu" functionality inside the single box DAC. Many other DACs fall in this category, and if your dac responds like mine, the difference is phenomenal. A good power supply is also essential to get the best from a dx-usbHD. I'm asking $550 for the dx-usbHD with superclock sCLK-224 Price drop: $475 Price dropped again: $450 Price dropped yet again: $425 I'll split paypal and shipping within the U.S. edit: uploaded and attached pictures, but i forgot to click "show images"