CONTROL FUNCTIONS
5. RCA input jacks
These RCA input jacks are for use with source units that have RCA outputs. A
source unit with a minimum level of 200mV is required for proper operation. The use of
high quality twisted pair cables is recommended to decrease the possibility of radiated
noise entering the system.
6.High level inputs
The high level inputs are for use with speaker level wiring.Some source units do
not have RCA outputs,so use this terminal for speaker level signal input.
CAUTION:Never use high level input when RCA inputs available.
7. Level Control
The level control will match the amplifiers sensitivity to the source units signal
voltage. The Operating range is 200mV minimum to 5V maximum. This is NOT a volume
control!
8.Low Pass Filter Control
This control is used to select the desired low pass x-over frequency. The frequency
can be adjusted from 40Hz to 220Hz for all bass mono models.
9.Subsonic Filter Control
This control can filter out unwanted low frequency from 10Hz (OFF) to 50Hz.This
function will increase the power handling of your woofers.
10.Bsss Boost Level switch
This switch can boost bass level by 0dB, 6dB or 12dB. The boost frequency is
centered at 50Hz.
11. X-over mode and frequency Control (4-ch)
These controls allow control over the frequencies played for the front channels.
There is an option for Low Pass. Full Range or High Pass. In LP or HP mode the frequency
range is from 50Hz to 4kHz.
12. X-over mode and frequency Control (4-ch)
These controls allow control over the frequencies played for the rear channels.
There is an option for Low/BandPass,Full Range or High Pass. In HP mode, the
frequency range is from 15Hz to 500Hz. In LP mode, the frequency range can be
switched from 50Hz to 800Hz. or 250Hz to 4kHz. In the higher range, the LPF can be set
at 4kHz for a middle bass while the front channels are also set at 4kHz for a tweeter
resulting in a 2-way x-over and eliminating the need for a passive x-over. Even with a set
up like this, the middle bass can still be protected by the HPF which is not defeatable. It
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PANEL LAYOUT
Fig 1. L1.600D/L1.1100D/L1.1600D/L1.2100D Panel layout
Fig 2.
L2.290/L2.400
Panel layout
4
3
2
1
7
16
8
5
4
3
2
1
6
5
7
8
9
10
6
20
16
21
20
22 21
Minimum
1
4
