The design begins with a rugged flanged enclosure that comes standard with gold plated XLRs and a removable screw-down barrier strip for easy installation in NEMA enclosures and 19” racks. Plug and play easy to use, this passive interface does not require any power to work. Inside are two Jensen high performance transformers that isolate the output to eliminate hum and buzz caused by ground loops while they eliminate issues with ‘bridged’ and ‘class D‘ power amp outputs. A series of input pad DIP switches let you select the range to suit various power amps for at 25 W, 75 W, 250 W, or 750 W max in to 8ohms. All types of amplifiers may be used including 25 V and 70 V line driver types.
Once connected, the SP-2SX is able to withstand signal levels to +19 dBu at 20 Hz without introducing distortion, phase shift or artifact of any kind. This opens the door to expand existing systems without having to run additional line level signals throughout a facility.
