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JB systems KM 4.1 Manual

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ENGLISH OPERATION MANUAL
JB SYSTEMS 4/20 KM4.1 / DE600 MIXER+ECHO
19. Input Aux1: Used to connect any line level sound source. Use the Aux1 control (10) to adjust the
input level.
20. Input Aux2: Used to connect any line level sound source. Use the Aux2 control (9) to adjust the
input level.
21. Master output: Used to connect an amplifier. Both aux and microphone inputs are mixed at the
master output. However only the output level of the 2 mixed aux inputs can be set by the master
volume (8).
22. Echo output/footswitch: Only the echo signal is present at this output.
• When the DE600/KM4.1 is used with the effect section of a separate audio mixer, connect
the effect return of the mixer to this output.
• When the DE600/KM4.1 is used to mix the microphones and aux inputs via the master
output (21), you can connect a footswitch to this connector. The echo on the microphones
will be bypassed when you connect the signal from this connector to ground (for example
with a footswitch).
23. Mains input: connect the supplied cable to a 230V/50Hz mains outlet. Before use, inspect the
cable to be sure it’s not damaged! The main input is equipped with a fuse to protect the unit.
Replace it only with the same type and value: 20mm glass fuse 250V 500mA slow blow.
SPECIFICATIONS
Power Supply: AC 230 V, 50Hz
Fuse: 20mm glass fuse 250V 500mA slow
Frequency response: 20-20.000Hz (+/-2dB)
THD + noise: <0.11% @ 1kHz, 0dB
S/N Ratio (IHF-A): >60dB @ 1kHz.
Micro inputs: 1.5mV @ 10kΩ
Line inputs: 150mV @ 22kΩ
Talkover: -18dB
Tone controls: +/-12dB @ 10kHz / 1kHz / 100Hz
Echo effect: digital – max. 800mS
Dimensions: 483(W) x 44(H) x 180(D) mm (19”/2U)
Weight: 2kg
Every information is subject to change without prior notice
You can download the latest version of this user manual on our website: www.beglec.com
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