Technical specifications:

• Audio Response: DC(0Hz)-15KHz
• Precise pre-emphasis, 50uS, 75uS or none, selectable via solder bridges
• Audio Input Impedance: 600 Ohms, balanced or unbalanced (can be raised to 10K, if necessary)
• Audio Input Level: 0 dB
• Distortion: <0.1%
• S/N ratio: -75 dBm
• Separation: >50 dB typ. (more than any radio receiver you can buy on the market)
• PilotFrequency: 19 KHz, DSP generated with 32x oversampling
• Output Impedance: 75 Ohms
• Power Requirements: 12-15VDC / 100mA
• PC Board Size: 80x50mm
• Audio connectors: solder pads
• Power connector: 2.1mm power socket, center is positive
• Output level: Ueff  2V or 1V