PPA4-1RMT Pre-Amplifier with Full Remote Volume Control and Audio Input Selection
Built with high quality parts:
5 sets of Neutrik-Rean RCA gold plated connectors located on the back
4 high quality OMRON Relays for source selection with 4 led indicators on the front panel
1 DC 5.5mm input (12VDC, 0.5A) on the back (wall adapter not included, but available optionnally)
ALPS RK27 "blue velvet" or ALPS RK168 50k remote controlled volume motorized potentiometer
internal wiring with high quality 22awg silver plated occ copper.
Anodized solid aluminum knobs.
Case and dimensions (mm) : brushed aluminum 195x40x80
Anodized solid aluminum feet with rubber ring
Remote controller: volume, input, on/standby
For this kind of passive devices, for the best results, it is recommended to use short interconnects with low capacitance, and use the volume potentiometer between "center" and "max" position to avoid audible high frequencies attenuation.