Usher P-307

The Usher P-307 is a modern, reference-level preamplifier. It is the control center of today's high-end sound systems. Its two main functions are source selection and volume control — and Usher has made every effort to keep that input as accurate as possible. To avoid unwanted interactions with adjacent source components, the P-307 uses high-quality relays and switching designs to ensure that every source is intact. Thus all sources remain separate from one another and from the power amplifier and cables. The P-307 completes any high-end sound system by allowing you to control and appreciate the subtle nuances of your music. 

The P-307 is a 2-piece pre-amp: the main chassis is metal, relatively light, containing all the knobs, circuitry, and connectors; the other box is the power supply, smaller but heavier than the main chassis, your power cord goes in there and the included umbilical xlr-style cord connects to the main chassis.

"The Usher Audio P307A pre-amplifier, is an audiophiles dream. Offering both passive as well as two pairs of active outputs, if you want to bi-amp a system this is the pre amp for you. The attention to details isn't just in the output stage, offering 8 sets of inputs as well as a tape monitor and phono inputs. This pre amp is going to change the way you regard High Fidelity audio equipment." 
-Analogue Seduction