The JPC from Radial Engineering is a stereo direct box that has been specifically designed for connecting computer sound cards and other consumer electronic products to a professional sound system. It combines the advantages of transformer-isolated inputs with an active drive circuit. Transformer coupled inputs isolate the source from the destination. This eliminates 60-cycle hum and buzz. Because the active circuit does all of the impedance conversion and balancing, a dedicated 1:1 transformer can be used. This results in a hybrid design that is at once great sounding, compact and affordable. The book-cover wrap-around sleeve design protects switches and connectors from damage while the 14 gauge steel I-beam construction eliminates stress that could torque the PC board and cause solder joint failure. A full-bottom no-slip pad provides electrical insulation and mechanical isolation. Active, stereo DI for computer sound cards and other A/V applications Converts -10dBV to balanced XLR mic level Active drive circuit allow for long cable runs 48V phantom power eliminates the need for batteries Transformer isolation prevents ground loops Compact design with ultra rugged 14-gauge steel construction Radial Engineering JPC specs Input Connections 2 x RCA phono1 x 1/4" TRS phone1 x 1/8" TRS mini stereo phone Output Connectors 2 x XLR2 x RCA phono Thru Input Level Not specified by manufacturer Output Level Not specified by manufacturer Controls -10dB pad switchGround lift switch Frequency Response 40Hz to 20kHz, +/-3dB Noise Not specified by manufacturer Power 48V phantom power Dimensions (WxDxH) 3 5/16" x 5" x 1 7/8" Weight 2.6 lbs Specialties 1/8" TRS phone connector designed for connecting the output of a PC or laptops sound card
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