My friend selling the Rowland 925s is going to move on from his beloved Corus preamplifier, which is powered by the incredible PSU (Power Storage Unit). The PSU can also power the Aeris DAC and Conductor phono stage, so your system can take advantage of this incredible power device. These two retail for $25K. If you are interested, please contact me. They are one owner units, less than 2 years old, and in mint condition with boxes, remote, and cables.