Operating Instructions
OVERVIEW:
Congratulations on your choice of the M-Pulse WalkAbout Bass Amplifier! This compact and powerful little brother to the M-Pulse 600 and 360 delivers all the tone and most of the features in a package thats bound for the open road.
At the heart of this giant killer is a robust 300 watt Simul-Statepower section that will handle most clubs and smaller venues with surprising headroom. This tube driven mosfet design combines the best qualities of both tube and solid state technology to achieve a lightweight, reliable platform that is supremely musical. This toneful power is metered out with the MASTER control, and can be used to drive any two speaker cabinets via the two SPEAKER OUTPUT jacks, with a combined overall load of 4 Ohms being the preferred impedance. Should you find yourself in larger venues, an XLR Balanced Direct output with a convenient Front Panel DI LEVEL control enables you to send your choice of pre or post signals to the board for Front Of House reinforcement.
TheWalkAbout Preamp is a four stage, all-tube, finely-tuned instrument of shaping power for bass. The signal path begins with the Input jacks and both ACTIVE and PASSIVE instruments have been provided for with a dedicated jack. The front end GAIN control determines the amount and color of preamp signal and/or drive you wish to push through the rotary Tone Controls. Active shelving
FRONT VIEW: WalkAbout
ACTIVE | | S I M U L S T A T E TM | B A S S A M P L I F I E R | | | | | | E N G I N E E R I N G | | |
| | | | 0 db | | 0 | 0 | | | | |
INSTRUMENT | | | -15 | + | - | + | - | +15 | | | |
INPUTS | | | | 60 Hz | 340Hz | 2K | | | | ON |
| GAIN | BASS | MID | TREBLE | DI LEVEL | MASTER |
| | | | |
| | | 30 | 300 | 200 | 2K | 1.2K | 12K | | | |
PASSIVE | FOUR - STAGE VACUUM TUBE PREAMPLIFIER | PARAMETRIC EQUALIZER | | | | POWER |
| | | | | | | | | |
REAR VIEW: WalkAbout
CAUTION:Unplug power before removing fuse or bolts holding chassis
USE
F
E F
SU
POWER FUSE
DIRECT OUT
POST 
PRE
GROUND
LIFT
WARNING: To reduce risk of fire or electric shock, replace fuse with
same type and rating only. Do not expose this unit to rain or moisture.
M-PULSE TM WALKABOUT
SIMUL STATE BASS AMPLIFIER TUBE DRIVEN-MOSFET POWER
HANDBUILT IN PETALUMA , CALIFORNIA
EFFECTS LOOP | SPEAKER OUTPUT |
RETURN | SEND | SUGGESTED LOAD |
4 OHMS
WARNING: To reduce risk of fire or electric shock, Do not remove cover. No user- serviceable parts inside. Refer
servicing to qualified personnel.
E N G I N E E R I N G