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4. COMBO 121 LITE HEAD - TECHNICAL DETAILS
INPUTS
INPUT
Impedance 1 Mohm; maximum voltage 10 Vpp
RETURN
Impedance 33 Kohm; max 10 Vpp
AUX
Impedance 10 Kohm; max 4 Vpp
CONTROLS
GAIN
Range –60 to +23 dB
LINE OUT
GND Lift, Pre/Post EQ, Pre/Post Master
(Pre EQ is not possible in combination with Post Master)
EQUALIZATION
LOW
center frequency 40 Hz; level: ±16 dB
MID/LOW
center frequency 360 Hz; level: ±16 dB
MID/HIGH
center frequency 800 Hz; level: ±16 dB
HIGH
center frequency 10 kHz; level: ±16 dB
VLE
max cut range: 250 Hz – 20 kHz
VPF
center frequency 380 Hz (cut)
MUTE
ON/OFF by footswitch or front panel switch
FX Loop BYPASS
ON/OFF by footswitch
OUTPUTS
LINE OUT
Balanced, max voltage 20 Vpp
SEND
unbalanced, max voltage 20 Vpp (pre-EQ)
TUNER OUT
unbalanced, max voltage 2 Vpp
PREAMP OUT
unbalanced, maximum level 20 Vpp
PHONES
600 ohm, maximum level 10 Vpp
OTHER
ACTIVE CROSSOVER FREQUENCY 3,5 kHz
AMPLIFIER POWER
500W digital (woofer) + 100W analog (tweeter)
WOOFER SIZE
12"
TWEETER VOICE COIL
1.25"
BASS PORT
Rear
FREQUENCY RESPONSE
45 Hz to 18 kHz
04
POWER REQUIREMENT
240V or 230V or 120V or 100V
(Version factory preset inside the equipment)
Markbass apparatuses are manufactured to be sold and used in the
country of purchase, and are factory preset to that country's voltage.
Due to homologation issues, the voltage may not be changed.
FUSE
EUROPE
6.3A 250V T 5x20
AUSTRALIA/UK
6.3A 250V T 5x20
USA/CANADA
8A 250V T 5x20
JAPAN
10A 250V T 5x20
5. COMBO 121LITE HEAD - BLOCK DIAGRAM
FX LOOP BYPASS
Return
MUTE
Input
GAIN
Send
-20 dB
Tuner
AUX
Pre/Post EQ
EQUALIZER
Pre/Post
Master
Master
BIAMP
LOW
HIGH
Line out
Pre-amp out
Phones
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