ENGLISH
OPERATION
MANUAL
JB SYSTEMS
5/30
MX4 Mk2
REAR PANEL
21. FADER CONTROL:
When connected to these inputs, compatible CD-players can be
controlled by the fader starts of this mixer.
22. MAINS CABLE:
connect this cable to a 230V/50Hz mains outlet. Before use, inspect
the cable to be sure it’s not damaged!
23. GROUND (GND) CONNECTION:
Many Turntables have a GND-connection. It is
preferable to connect this signal ground to the GND-connector. If your turntable does
not have a ground wire, you don’t have to use this connector.
24. MASTER1 BALANCED OUTPUT:
The XLR-connectors can be used to connect this
mixer to any balanced amplifier input, using special balanced signal cables.
25. MASTER UNBALANCED OUTPUTS:
The “mast.1” output has the same output signal
as the balanced master output(24) but unbalanced. The “mast.2” output carries the
same signal but can be controlled independently by the master2 level (19). Use the
outputs to connect unbalanced amplifiers.
26. RECORD OUTPUT:
Carries the same signal as the master outputs but is not
influenced by the master level, balance and mono/stereo controls. Used to connect
analog recording equipment.
27. INPUT CHANNELS:
each used to connect two different line level audio signals. Refer
to switch (30) to change one line input to phono level. The input source selector (2) on
the front determines which input will be active.
28. LINE INPUT CHANNEL1:
used to connect a line level audio signal to channel1.
29. MIC INPUT:
¼” mono jack alternative to the XLR microphone input on the front (1).
30. PHONO/CD SWITCH:
This switch makes it possible to switch between the CD and
phono level inputs on channels 2, 3 and 4.
ENGLISH
OPERATION
MANUAL
JB SYSTEMS
6/30
MX4 Mk2
CROSSFADER STARTS
The crossfader integrates the optical fader start switches. These fader starts are
compatible with all current JB Systems CD-players. This is how it works:
A. CROSSFADER IN LEFT POSITION:
CD-player connected to fader start connector
1 is playing, the other CD-player is paused.
B. CROSSFADER MOVES TO THE RIGHT:
CD-player connected to fader start connector
1 stops playing, returns to its previously
programmed cue point and waits in pause.
The other CD-player starts playing from its
previously programmed cue point.
C. CROSSFADER IN RIGHT POSITION:
CD-player connected to fader start connector
2 is playing, the other CD-player is paused.
D. CROSSFADER MOVES TO THE LEFT:
CD-player connected to fader start connector
2 stops playing, returns to its previously
programmed cue point and waits in pause.
The other CD-player starts playing from its
previously programmed cue point.
Important:
Both fader start switches must be in “ON” position!
SPECIFICATIONS
Power Supply:
AC 230 V, 50Hz
Frequency response:
20-20.000Hz (+/-2dB)
THD + noise:
<0.09% @ 1kHz, 0dB
S/N Ratio (IHF-A):
>86dB @ 1kHz.
Micro inputs:
1.5mV @ 10k
Ω
Line/CD inputs:
150mV @ 22k
Ω
Phono inputs:
3mV @ 47k
Ω
Record output:
775mV @ 600
Ω
Master A/B output:
1.5V @ 4k7
Ω
unbal.
Master A/B output:
850mV @ 600
Ω
bal.
Talkover:
0dB
Æ
-15dB
Tone controls:
+12dB / -26dB
Headphone:
1.5V@33
Ω
Dimensions:
294(W) x 350(H) x 95(D) mm
Weight:
4.8kg
