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4. AH250 TECHNICAL DETAILS
INPUTS
INPUT CH1 UNBALANCED
INPUT CH2 UNBALANCED
BALANCED
INSERT POINT
CONTROLS
GAIN CH1
GAIN CH2
LINE OUT
PHANTOM POWER
GROUND LIFT
EFFECT MIX
PHASE
ANTIFEEDBACK
MASTER VOLUME
EQUALIZATION CH1
LOW
MID
HIGH
EQUALIZATION CH2
LOW
HIGH
VPF (Variable Pre-shape Filter)
ONBOARD DIGITAL EFFECTS
CHORUS 1
ROOM
REVB 1
REVB 2
HALL
CHORUS 2
impedance: 500 Kohm, max. voltage: 10 Vpp
impedance: 1 Mohm, max. voltage: 10 Vpp
impedance: 1 Mohm, max. voltage: 20 Vpp
impedance: 10 Kohm, max. voltage: 20 Vpp
–45 dB to +28 dB range
–43 dB to +26 dB range
level control on front panel
48V DC (on CH2 Input, pulling out the CH2 GAIN knob)
switch on rear panel
Internal effect only
switch on front panel (0° - 180°)
20 Hz (off ) to 400 Hz range
40 Hz; level: ±16 dB
600 Hz; level: ±16 dB
6 kHz; level: ±16 dB
60 Hz; level: ±16 dB
5 kHz; level: ±16 dB
center frequency 380 Hz (cut)
OUTPUTS
INSERT POINT
LINE OUT
SPEAKER OUT
OTHER
HEIGHT
WIDTH
DEPTH
WEIGHT
OUTPUT POWER
POWER REQUIREMENT
FUSE
EUROPE
AUSTRALIA/UK
USA/CANADA
JAPAN
unbalanced, max. voltage 25 Vpp
balanced XLR, max. voltage 20 Vpp
speakon / 1/4" combo jack, 1/4" jack
2 rack units (3.16 in. / 80.3 mm)
10.87 in. / 27.6 cm (19 in. / 48.3 cm with
rack ears)
10.04 in. / 25.5 cm
6.39 lbs / 2.9 kg
250W RMS @ 4 ohm, 150W RMS @ 8 ohm
100; 120V; 230V; 240V 50/60Hz (Voltage
is factory preset according to region of
sale).
Markbass amps/combos 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.
3.15 A 250V T 5x20
3.15 A 250V T 5x20
6.3 A 250V T 5x20
6.3 A 250VT 5x20
05
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