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FRONT PANEL
2
1
1
GAIN
BASS
3
3
4
4
2
2
True
Boost
SYSTEM
5
[1]
− Active
bass instrument INPUT
[2]
− P
assive bass instrument INPUT
[3] − GAIN control − True/Boost. "True" position (MIN) means that
the instrument signal is not increased at input stage.
The signal is the same as the pickup and preamp output.
[4]
−
BASS control with MLO−system.
[5]
− Triple BASS − switch to reduce or boost low frequency
[DBS−cut/OFF/DBS−boost].
[6]
− MIDDLE control.
[7]
− PUNCH triple switch − High−Punch/off/Low=Punch
[8]
− TREBLE
CONTROL with MLO−system.
[9]
− Triple TREBLE − switch to reduce or boost high frequency
[CUT/OFF/PRESENCE].
[10]
− VOLUME control.
[11] − MUTE on/off switch
.
[12]
− ON/MUTE indicator
.
[13]
− Power amplifier CLIP indicator
[14]
− Protection indicator.
Qube-450
MIDDLE
TREBLE
VOLUME
PROT
6
6
8
8
10
10
ON
0
10
A
B
MUTE
Punch
Punch
7
9
11
12 13 14
[JACK 6.3mm].
[JACK 6.3mm].
.
− 3 −
OPIS EQUALIZERA PARAMETRYCZNEGO
3
1
1
D.I.
CLIP
4−8ohm
2
2
[1]
− Balanced LINE OUTPUT
[2]
− SPEAKERS output
4ohm − minimum impedance
It's recommended to connect 4 ohm cabinets with Speakon−
Speakon cable. This link warrants better connection quality
and reliability then Jack−Jack cable.
[3]
− LINE OUTPUT PRE/POST EQ switch.
[4]
− LINE OUTPUT GROUND LIFT switch.
[5]
− POWER switch.
[6]
−
EC POWER INPUT socket with AC fuse.
Fuse: 3,15A/230V
Fuse: 6,3A/120V
4
4
This amp is armed with several Power Amp protection circuits. PROT LED
placed at front panel of the unit indicates their activity. If PROT illuminates
with constant light while instrument is connected, that means Power Amp
is blocked by PROTECT circuits. Temporary overload or short circuit at
Speaker Output will cause PA to be blocked for about 4 seconds. After this
time amp will start working again without any user action. If this kind of
situation occurs, cabinet connection and impedance should be checked
(lowest possible impedance is 4 ohms). If amp does not restart after 4
seconds, that may indicate Power Amp has overheated. It may take few
minutes before the cooling system will decrease temperature of PA to the
safe level.
REAR PANEL
POST
LIFT
3 4
3 4
PRE
GND
450W/4ohm
300W/8ohm
Made in Poland
[XLR]
.
[combo SPEAKON and 6,3mm
PROTECTIONS
− 4 −
POWER
5
5
Fuse: 3.15A−230V
6.3A−120V
6
6
JACK]
.
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