SPL SMC 7.1 User Manual page 21

Headphone output
Warning: Never connect a mono jack cable to the headphone output (front panel stereo jack). Make sure
that the stereo jack is fully inserted, otherwise a short circuit might damage the headphone amplifier!
• 6.35 mm TRS connector
• Pin wiring: Tip = Left, ring = right, sleeve = GND
• Impedance: 22 ohms
• Frequency range: 10 Hz to 80 kHz ( -3 dB)
• Crosstalk at 1 kHz: -70 dB
• THD & N: 0.001% (at 0 dBu, 1 kHz, 40 ohms load)
• Noise (A-weighted): -93 dB
• Dynamic range: 113 dB
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Specifications