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AIS
A. IEC LINE CORD CONNECTOR - The power line cord must be
connected to a grounded AC receptacle in accordance with the voltage
and frequency ratings as specified on the rear panel of the unit under
“INPUT POWER.”
B. PARALLEL SPEAKER OUTPUTS - Connect the internal speakers
(Bassman 400) or external speaker(s), 4Ω minimum total load, at
these jacks. WARNING: Disconnect internal speakers before
connecting any external speaker(s).
C. GROUND LIFT - Switch IN disconnects the ground connection from the
LINE OUT {D} jack (pin-1) which may reduce noise in the ground circuit.
Switch OUT is usually the best setting.
D. LINE OUT - Balanced XLR jack for output to recording or sound-
reinforcement equipment.
E. LINE OUT LEVEL - Adjusts the output level of the LINE OUT {D} jack.
F. PRE/POST EQ - Switch IN supplies the LINE OUT {D} jack with the
POST EQ signal (includes pre-amp control settings). Switch OUT
supplies the LINE OUT jack with direct PRE EQ signal (pre-amp control
settings bypassed).
G. TUNER OUT - Connect your tuner at this jack and tune-up through the
Bassman 400/400H. NOTE: Push IN the MUTE switch for silent tuning.
H. FOOTSWITCH - Connect the included footswitch at this jack to enable
remote ON/OFF switching of the semi-parametric EQ set.
I. EFFECTS RETURN - Connect the cable from an external effects device
at this input jack.
J. EFFECTS SEND - Connect the cable to an external effects device at this
output jack.
• NOTE: For additional output, link two Bassman 400’s/400H’s by
connecting the EFFECTS SEND {J} on one amp to the
EFFECTS RETURN {I} on the second amp. (All controls on the first
amp override those on the second amp, except MASTER VOLUME.)
BASSMAN 400 ONLY:
K. HORN LEVEL - Adjusts the volume level
of the horn. The horn is OFF with the
knob turned counter-clockwise to “Min.”
L. FUSE - Protects the horn from overdrive
or electrical fault damage. Replace fuse
with same type and rating (2A, 250V).
TYPE PR 412
PART NUMBERS
BASSMAN 400: 022-4505-000(120V, 60Hz) USA, 022-4535-000(240V, 50Hz) Aust,
022-4545-000(230V, 50Hz) UK, 022-4565-000(230V, 50Hz) Eur, 022-4575-000(100V, 50/60Hz) Jpn
BASSMAN 400H: 022-4506-000(120V, 60Hz) USA, 022-4536-000(240V, 50Hz) Aust,
022-4546-000(230V, 50Hz) UK, 022-4566-000(230V, 50Hz) Eur, 022-4576-000(100V, 50/60Hz) Jpn
POWER REQUIREMENTS
900W
POWER AMPLIFIER
OUTPUT: 350W RMS into 4Ω @ <0.02%THD, 1kHz
SENSITIVITY: 1.4V RMS, 1kHz
PRE AMPLIFIER
INPUT IMPEDANCE: PASSIVE: 1M Ω, ACTIVE: 1M Ω
SENSITIVITY AT FULL POWER: PASSIVE: 19mV, ACTIVE: 40mV
NOMINAL LEVEL: PASSIVE: 145mV, ACTIVE: 300mV
TONE CONTROLS
ROOM BALANCE: ±10dB, crossover frequency: 350Hz
BASS: ± 15dB @ 50Hz
TREBLE: ± 15dB @ 10kHz
3-BAND, SEMI-PARAMETRIC EQ: LOW FREQ: 25Hz to 150Hz
LOW LEVEL: ±15dB @ LOW FREQ setting
MID FREQ: 140Hz to 1.6 kHz
MID LEVEL: ±15dB @ MID FREQ setting
HIGH FREQ: 1.4kHz to 8kHz
HIGH LEVEL: ±15dB HIGH FREQ setting
EFFECTS LOOP
SEND IMPEDANCE: 1k Ω
RETURN IMPEDANCE: 22k Ω
NOMINAL LEVEL: +4 dBu (Adjustable with level control)
SPEAKERS
BASSMAN 400: LOW FREQUENCY: Two Eminence, 8Ω, 10” Woofers (Part#0051864000)
HIGH FREQUENCY: Foster, 8Ω Horn (Part#0048847000), FUSE: (2A,250V)
FOOTSWITCH
One button: Equalizer (Part# 0055852000)
DIMENSIONS
BASSMAN 400: HEIGHT: 24 3/4 in. (62.9 cm)
WIDTH: 23 in. (58.4 cm)
DEPTH: 17 in. (43.2 cm)
BASSMAN 400H: HEIGHT: 6 7/8 in. (17.5 cm)
WIDTH: 23 in. (58.4 cm)
DEPTH: 15 1/2 in. (39.4 cm)
WEIGHT
BASSMAN 400: 80 lbs. (36.4 kg)
BASSMAN 400H: 42 lbs. (19.1 kg)
Product specifications are subject to change without notice.
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