Ducking Depth
Resistor Value
36 dB
20,000 Ω
42 dB
25,000 Ω
47 dB
30,000 Ω
50 dB
33,000 Ω
55 dB
40,000 Ω
Ducking Threshold
This modification adjusts the threshold for activating the ducking circuit.
The ducking threshold can be raised or lowered by first removing resistor R333, and then placing a resistor (R) at
jumper X303. To lower the ducking threshold, use a resistor value (R) less than 2k ohms. To raise the ducking
threshold, use a resistor value (R) greater then 2k ohms.
Supplied Hardware
4 rubber feet. For stand-alone installation.
1 rackmount bracket, long. For half-rack (single unit) installations.
1 rackmount bracket, short. For half-rack (single) or dual-mount installations.
2 straddle brackets. For dual-mount or fixed installations.
12 bracket screws, 1/4-in. (6 mm). For securing the brackets to the chassis.
4 rackmount screws, 1 in. (2.5 cm). For mounting the unit in a rack.
4 plastic washers. For use with the supplied rackmount screws.
4 wood screws, 1/2 in. (1.25 cm). For fixed installations.
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