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Page A-4
X-Rack Owner’s Manual
A.2.4 Instrument Input Performance
Un-balanced signal applied to Instrument Input and measured at Output. Pad switched out and Input
Gain control set to +12dB (minimum).
Gain Continously variable from +12dB to +75dB
Independently switchable 18dB Pad available
Input Impedance 1MΩ
Output Headroom > +26dBu at onset of clipping
THD + Noise < 0.03% at 1kHz
(-18dBu applied, +28dB gain) < 0.05% at 10kHz
Frequency Response +0.05dB/-0.1dB from 20Hz to 20kHz
–3dB at 150kHz
Equivalent Input Noise < –82dB at +12dB (minimum) gain
(Input terminated with 150Ω) < –88dB at +28dB gain (mid’ position)
A.2.5 Line Input Performance
Signal applied to Line Input and measured at Output. Input Gain control set to 0dB (indent).
Gain Continuously variable from –20dB to +20dB
Input Impedance > 10kΩ
THD + Noise < 0.005% from 20Hz to 20kHz
(+24dBu applied, 0dB gain)
Frequency Response ±0.1dB from 20Hz to 20kHz
–3dB at 150kHz
Equivalent Input Noise < –90dB
(Input terminated with 150Ω)