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FRONT PANEL CONTROLS
LEVEL CONTROL The 901 level control is assembled with an ultra precision
24 position gold contact switch. Using low inductance surface mount metal
film resistors this switch is the ultimate attenuator for sonic fidelity and level
accuracy. Left-right channel balance is maintained to within 0.05dB at any
setting. The attenuation curve is shown in the table below.
POSITION ATTENUATION POSITION ATTENUATION POSITION ATTENUATION
24 0 16 -16 8 -32
23 -2 15 -18 7 -34
22 -4 14 -20 6 -38
21 -6 13 -22 5 -42
20 -8 12 -24 4 -46
19 -10 11 -26 3 -50
18 -12 10 -28 2 -60
17 -14 9 -30 1
-∞
GAIN RANGE The gain range switch provides an extra 10dB of gain for
monitoring –10dB signals or use with low sensitivity headphones. With the
LEVEL CONTROL at maximum, the LOW gain position provides +10dB overall
gain when using the analog inputs. When using the digital input, this setting
will yield +20dBu out at 0dBFS. When the GAIN RANGE switch is depressed
the overall gain is +20dB
LEVEL CONTROL
SAMPLE RATE
INDICATOR
POWER SWITCH
GAIN RANGE INPUT SELECT OUTPUT JACK