420/20 V2 User Guide
Connections to the monitors are made via the five-way binding posts on the
monitorsO rear panels. These terminals will accept large diameter bare or tinned
wires, spade or pin terminals, or banana plugs. Use the shortest length of #10 � #14
guage speaker wire to connect the positive (red) and negative (black) speaker
terminals to the similarly marked terminals on your power amplifier. Watch for
accidental polarity reversal (it happens!), as this will cause a loss of low frequency
response and center image.
Connections and Operation: Active 20/20bas V2
1 Input Sensitivity This control is used to compensate for different signal
levels that appear at the input. The control has a 20dB range; when set at maximum
(MAX), 1.1V RMS input at the balanced ins will produce full amplifier output.
Note that when the signal appearing at the input is too hot, the amplifiers may
overload, causing distortion. If this occurs, attenuate (decrease) the Input
Sensitivity by turning the control counter-clockwise.
2 High Frequency Trim Control This control can be used to tailor the high
frequency response of the system to your room. Turn the control clockwise to
increase the high frequency response; counter-clockwise to decrease it. The center
detent indicates the controlOs Oflat� position.
3 Input 1 This balanced 1/4" line input jack accepts a male two-conductor
1/4" TS or three-conductor 1/4" TRS connector, wired for either balanced or
unbalanced operation. For unbalanced operation with a TS connector, the minus
signal is automatically grounded; with a TRS connector you have the option of leaving
the minus input open or grounded. We recommend, however, that you ground the
unused input. For balanced operation, which requires using a TRS connector, please
consult the pin wiring diagram on the monitorOs back panel.
Note: Inputs 1 and 2 are hardwired in parallel, so either may be used as an input or
as a pass-through connection. Input specifications apply equally to both inputs.
4 Input 2 This balanced XLR line input accepts a male XLR connector, wired
for either balanced or unbalanced operation. For balanced operation, please consult
the pin wiring diagram on the monitorOs back panel.
5 Low Frequency Trim Control This control can be used to tailor the low
frequency response of the system to your room. Turn the control clockwise to
increase the low frequency response; counter-clockwise to decrease it. The center
detent indicates the controlOs Oflat� position. |
ACEC
