Mesa/Boogie BIGBLOCK Big Block 750 - Manual (Page 5)

Congratulations on your choice of the M-PULSE BIG BLOCK 750 as your amplifier and welcome to the MESA/Boogie Family!
First we would like to thank you for choosing us as your amplifier company. This is something we never take for granted and you will
come to find that we are here to help you sound your best should you ever need help. We feel confident that your new amplifier will
bring you many years of rewarding inspiration and create for you a newfound freedom to express through your music.
This mighty powerhouse joins the innovative band of M-PULSE hybrid bass amplifiers as the heavyweight king of headroom with its
urgent big venue tone. It represents the ultimate marriage of simplicity and versatility and will surprise you daily with its fundamental
musicality and tone.
The BLOCK stands firmly on the same soulful sounding ground as all M-PULSE amplifiers, with architecture based on our 30 years
of all-tube preamp experience and Simul State™ Power - which utilizes a tube driver stage feeding a bank of custom designed
mosfet output devices. This design seamlessly integrates the best sonic qualities of old-world tube circuitry and modern high power
mosfet technology to arrive at a stunning blend that is both musical and powerful. In the
BIG 750’s case, that is doubly true. This
monolith of tone harnesses not one, but two power blocks, putting at your immediate disposal ridiculous amounts of transient handling
current produced by the 20 mosfet devices. This means when you want to say something with your instrument, your voice will be
heard with accuracy, both harmonically and in the time domain. Every bassist knows how important that is!
PAGE 1
Operating Instructions
Overview:
AC OFF
S I M U L S T A T E B A S S A M P L I F I E R TM
PASSIVE-MID ACTIVE-MID FREQUENCY
FRONT VIEW: Big Block 750
INPUT TUNER
MUTE
E N G I N E E R I N G
OVERDRIVE
GAIN BASS TREBLE MASTER O.D.MASTER
OVERDRIVE
5 - STAGE VACUUM TUBE AMPLIFIER
CAUTION : Unplug power
before removing fuse or
bolts holding chassis
POWER FUSE
15A
SLO
BLO 120 V~
60 Hz
15 A
FU
SE
F US E
GROUND
LIFT
EFFECTS
SPEAKER
OUTPUT
RETURN SEND
SUGGESTED LOAD
2 OHMS MINIMUM
REAR VIEW: Big Block 750
HANDBUILT IN PETALUMA , CALIFORNIA
SIMUL STATE BASS AMPLIFIER
TUBE DRIVEN-MOSFET POWER
M-PULSE BIG BLOCK 750
POST PRE
DIRECT OUTPUT
LEVEL
FOOT
SWITCH
SLAVE
LEVEL OUT
TUNER