HelixNet | User Guide
Specification Description / value
Frequency response 300Hz – 10kHz + / -3dB (contoured for intelligibility)
Distortion <0.2% THD @ 1 kHz
Noise- <-55dBu dynamic, <-65dBu electret
20.5.3 Headphone Amplifier
Specification Description / value
Load impedance 32Ω
Output level +12dBu before clipping
Sidetone -12dB (selectable)
Routed from a 4-wire input @ 0dBu in
Max gain 0dB
Frequency response 180Hz - 10kHz ±3dB
Distortion <0.1% THD @ 1 kHz
Noise <-65dBu
Headphone limiter 0dBu (selectable)
20.5.4 Loudspeaker Amplifier
Specification Description / value
Load impedance 8Ω
Output level +18dBu before clipping
Max gain 18dB
Routed from a 4-wire input @ 0dBu in:
Frequency response 200Hz - 10kHz ±3dB
Distortion <0.1% THD @ 1 kHz
Noise <-50dBu
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