Rear Panel - JB Systems CONTROL 5.2 Mode D'emploi

ENGLISH
audio risks to be distorted when the signal level comes in the red zone of the VU-
meter.
10. MONO/STEREO switch: used to switch Master B in mono or stereo mode.
11. BALANCE: used to adjust the balance between left and right output on Master B.
12. POWER switch: Used to turn the power of the mixer on and off.
13. CUE SELECTOR switch: Used to select the source you want to monitor. You
can listen to any input channel while its channel fader is closed.
14. CUE LEVEL: Used to control the output level of the headphone output.
15. HEADPHONE jack: You can connect any modern stereo headphone to this
6.3mm jack. Together with the cue selector (13) and the cue level (14) you can
use it to listen to the selected input channel.
16. MASTER B level: Used to adjust the output level of Master B.
17. 3BAND TONE control: use these 3 controls to modify the audio signal of Master
B to your personal taste.
18. MASTER A level: Used to adjust the output level of Master A.
19. 3BAND TONE control: use these 3 controls to modify the audio signal of Master
A to your personal taste.
20. GAIN controls: Used to set the sensitivity of each channel separately. Based on
the information from the VU meters(9) and the peak led(22) you can adjust the
channel sensitivity.
21. CHANNEL FADERS: Used to set the level of each channel separately.
22. PEAK & SIGNAL LEDS: all channels are equipped with a peak and signal led:
• Signal led: The green signal led indicates that a music signal is present at this
channel input.
• Peak led: The red peak led indicates that the input signal is too high. Make sure
that the peak led only turns on from time to time. When the peak led is on for
longer periods, you are urged to lower the input signal using the GAIN
control(20).
23. 3BAND TONE control: you can use these 3 controls to modify the audio signal of
the DJ micro to your personal taste or to remove feedback from the microphone.
Note: Feedback is where an acoustic signal is amplified over and over again until it develops
rapidly into a loud screech: Reduce the gain on your microphone channel and/or try cutting HF
from your tone controls.

REAR PANEL

JB SYSTEMS®
OPERATION MANUAL
5/41 CONTROL5.2 MIXER
ENGLISH
24. DJ MICRO input: Used to connect a balanced (stereo jack) or unbalanced (mono
jack) micro to this channel.
25. LINE input: Used to connect any line level sound source to this channel.
26. PHONO input: Used to connect a turntable to this channel.
27. PHONO/LINE switch: Used to select either the phono input(26) or microphone
input(24) on channels 4 and 5.
28. RECORD BUS A: line level output with the signals from channels 2 to 5. Only the
channels where you selected zone A will be on this output.
Important note: the tone controls, DJ microphone and talkover function are NOT available on this
output. This means that the DJ can talk as much as he wants; on this output only the music will be
recorded.
29. MASTER A unbalanced output: Used to connect an amplifier with unbalanced
inputs. The output level can be set by the MASTER A level (18).
30. MASTER A balanced output: Used to connect an amplifier with balanced inputs.
The output level can be set by the MASTER A level (18).
31. RECORD BUS B: line level output with the signals from channels 2 to 5. Only the
channels where you selected zone B will be on this output.
Important note: the tone controls, DJ microphone and talkover function are NOT available on this
output. This means that the DJ can talk as much as he wants; on this output only the music will be
recorded.
32. MASTER B unbalanced output: Used to connect an amplifier with unbalanced
inputs. The output level can be set by the MASTER B level (16).
33. MASTER B balanced output: Used to connect an amplifier with balanced inputs.
The output level can be set by the MASTER B level (16).
34. MAINS INPUT: connect the supplied mains cable to a 230V/50Hz mains outlet.
Before use, inspect the cable to be sure it's not damaged!
35. MAIN FUSE: The main fuse protects the mixer. Replace it only with the same
type and value.
SPECIFICATIONS
Power Supply: AC 230 V, 50Hz
Fuse: 20mm glass fuse 250V 500mA slow
Frequency response: 20-20.000Hz (+/-2dB)
THD + noise: <0.1% @ 1kHz, 0dB
S/N Ratio (IHF-A): >85dB @ 1kHz.
Micro inputs: 1.5mV @ 10kΩ
Line/CD inputs: 150mV @ 22kΩ
Phono inputs: 3mV @ 47kΩ
Record output: 775mV @ 600Ω
Master A/B output: 1.5V @ 4k7Ω unbal.
Master A/B output: 850mV @ 600Ω bal.
Talkover: 0dB
Tone controls: +/-12dB @ 10kHz / 1kHz / 100Hz
Headphone: 1V@33Ω
Dimensions: 483(W) x 134(H) x 130(D) mm
Weight: 2kg
JB SYSTEMS®
OPERATION MANUAL
-15dB
6/41 CONTROL5.2 MIXER