Mesa/Boogie M-PULSE Owner'S Manual Download Page 6

the two astound bassists much as they did when we began including them on our guitar amplifiers. The logic is in their names MAIN 
and SOLO. When players get this scheme they say “why hasn’t there always been two”. There will be from now on as imitators follow, 
but right now we are giving you another footswitchable feature in the form of this SOLO control. This is an additional Master pot wired 
in parallel with the MAIN Output and it allows a footswitchable SOLO boost. This feature lets you step out for a showcased part or 
allows you to compensate for a sound that has a lower output due to either notching in the Parametric EQ or Compression or both.

Looking to the Rear Panel you can see that all your interfacing needs are well provided for. A dedicated TUNER Output is provided 
for  
tuning without having to disconnect. The Parallel Effects Loop and MIX control provides seamless interfacing of all your outboard 
processing. The Loop is also footswitchable allowing you to call up your effects on the fly.

REAR VIEW :     

M- PULSE  600

A Balanced XLR DIRECT OUTPUT and LEVEL control is provided with both Post and Pre settings to capture your sound through 
house main or recording consoles. In addition a SLAVE Output with LEVEL control is provided capturing both pre-amp and power 
section in a padded format. This enables you to use additional power for large venues or for deriving a post signal for effects to be sent 
to additional amplifier(s) in a 1 dry / 1 wet scenario. And finally, 2 SPEAKER OUTPUTS are provided to harness the robust output of 
the 

M-PULSE 

power amp. With this pair of jacks almost any speaker cabinet or combination of cabinets can be accommmodated.

Now that we have covered the basics of 

your

 new 

M-PULSE,

 let’s connect up the A.C. and your favorite cabinet and Bass and give 

this instrument of fundamental enlightenment a listen with a quick reference setting.

Instant Gratification:

Now that you have had a listen to your 

M-PULSE,

 here are a few quick tips to help you in case you don’t have time to read the rest 

of this manual right now. 

PAGE 2

OVERVIEW:  

Continued

INPUT

GAIN           BASS             MID            TREBLE

FOUR - STAGE VACUMM TUBE PREAMPLIFIER

ON

POWER

ON

FS

OFF

0 db                  0                     0                     0                      0

40 Hz                120                400                 1.4K                   6K

SEMI - PARAMETRIC EQUALIZER

30                    90                 250                 900                    4K

SIMUL STATE POWER

THRESHOLD    RATIO           MAIN            SOLO

COMPRESSION               MASTER  VOLUMES

ON

FS

OFF

INSTANT GRATIFICATION   (Parametric EQ Optional)

ENGINEERING

ACTIVE

PASSIVE

CAUTION

:

Unplug power

before removing fuse or 

bolts holding chassis

POWER   FUSE

12A
SLO
BLO

120 V~

60 Hz

12 A

FUSE

F US

E

SEND

RETURN

SLAVE OUT

SUGGESTED LOAD 

4 OHMS (2 OHM MINIMUM)

SPEAKER OUTPUT

FOOT

SWITCH

LEVEL

DIRECT OUT

POST

PRE

LEVEL

GROUND

LIFT

0%

100%

F.S.

ON

EFFECTS

TUNER

OUTPUT

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.

WARNING

To reduce risk of fire or electric 

shock,  Do not remove cover. No user-

serviceable parts inside. Refer 

servicing to qualified personnel.

M-PULSE TM SIMUL STATE BASS AMPLIFIER

TUBE DRIVEN-MOSFET POWER

HANDBUILT IN PETALUMA, CALIFORNIA

Summary of Contents for M-PULSE

Page 1: ...OOGIE B MESA Owner s Manual...

Page 2: ...ave purchased the most comprehensive instrument for amplifying Bass that is available What you might not realize is that this entitles you to all the experience resources and commitment our twenty fiv...

Page 3: ...TROLS Parametric EQ 7 COMPRESSOR 8 THRESHOLD 8 RATIO 8 9 MAIN Output 9 SOLO Output 9 POWER SWITCH 9 FUSE 10 A C RECEPTACLE 10 SLAVE OUT 11 SPEAKER OUT 11 DIRECT OUT LEVEL POST PRE GROUND LIFT and XLR...

Page 4: ...openings with items such as newspapers tablecloths curtains etc Do not impede ventilation by placing objects on top of the apparatus which extend past the rear edge of its cabinet No naked flame sour...

Page 5: ...way this 5 Band EQ is a great addition you will come to find invaluable Next in the signal path is a new improved Compressor that features both THRESHOLD and RATIO controls First included on our M 200...

Page 6: ...al amplifier s in a 1 dry 1 wet scenario And finally 2 SPEAKER OUTPUTS are provided to harness the robust output of the M PULSE power amp With this pair of jacks almost any speaker cabinet or combinat...

Page 7: ...tting notching undesirable frequencies is often preferable to boosting desirable ones By using this technique you will keep noise to a minimum and ensure ample headroom at all times The Parametric is...

Page 8: ...nd greater headroom and provide a scooped brighter personality The upper harmonics come through more prominently in this area of the control making the top end sound more transparent and sweet This re...

Page 9: ...tring of rotary tone controls This scheme was chosen for its inherently musical blend and for the way the passive style midrange control with its wide spread and smooth taper fills in the holes Unlike...

Page 10: ...and left active in the signal path to achieve your main sound or it may be remotely triggered from the Footcontroller to achieve unique footswitchable solo sounds or a different sound for an alternate...

Page 11: ...tolerant of sub low low and super high frequencies You have probably heard the soundman at many a gig say take some 1K out of that snare or guitar mic This high mid frequency is often called the pain...

Page 12: ...and musical compression effect try using a relatively low RATIO setting and then set the THRESHOLD so that compression begins with only your most dynamic hardest hits of the strings which will probabl...

Page 13: ...is capable of very loud output volumes that could potentially cause damage to your hear ing or the hearing of others May we suggest always beginning your set up by zeroing out the MAIN output level c...

Page 14: ...CAUTION Unplug power before removing fuse or bolts holding chassis 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 mois...

Page 15: ...et an appropriate level for the Direct Signal to match the input sensitivity of the console It is always best to start with the LEVEL control zeroed out before connecting a cable to the DIRECT output...

Page 16: ...se the M PULSE as a slave power amp by connecting a signal to the RETURN jack you must have the EFFECTS LOOP turned ON see next section and the MIX control set to 100 or the input sensitivity will be...

Page 17: ...0 90 250 900 4K SIMUL STATE POWER THRESHOLD RATIO MAIN SOLO COMPRESSION MASTER VOLUMES ON FS OFF Articulate Solo PASSIVE ACTIVE GAIN BASS MID TREBLE FOUR STAGEVACUMMTUBE PREAMPLIFIER ON POWER ON FS OF...

Page 18: ...ATIO MAIN SOLO COMPRESSION MASTER VOLUMES ON FS OFF Punch PASSIVE GAIN BASS MID TREBLE FOUR STAGEVACUMMTUBE PREAMPLIFIER ON POWER ON FS OFF 0 db 0 0 0 0 40 Hz 120 400 1 4K 6K SEMI PARAMETRIC EQUALIZER...

Page 19: ...minor pre amp tube problems can take many forms but can generally be described in two categories Noise and Microphonics Noise can be in the form of crackling sputtering white noise hiss and or hum Mic...

Page 20: ...0 900 4K SIMUL STATE POWER THRESHOLD RATIO MAIN SOLO COMPRESSION MASTER VOLUMES ON FS OFF PASSIVE GAIN BASS MID TREBLE FOUR STAGEVACUMMTUBE PREAMPLIFIER ON POWER ON FS OFF 0 db 0 0 0 0 40 Hz 120 400 1...

Page 21: ...0 900 4K SIMUL STATE POWER THRESHOLD RATIO MAIN SOLO COMPRESSION MASTER VOLUMES ON FS OFF PASSIVE GAIN BASS MID TREBLE FOUR STAGEVACUMMTUBE PREAMPLIFIER ON POWER ON FS OFF 0 db 0 0 0 0 40 Hz 120 400 1...

Page 22: ...0 0 40 Hz 120 400 1 4K 6K SEMI PARAMETRIC EQUALIZER 30 90 250 900 4K SIMUL STATE POWER THRESHOLD RATIO MAIN SOLO COMPRESSION MASTER VOLUMES ON FS OFF FRONT PANEL CONTROLS E N G I N E E R I N G KNOB p...

Page 23: ...The Spirit of Art in Technology OOGIE B MESA Thank you for trusting MESA Boogie to be your amplifier company and we wish you many years of toneful enjoyment from this handbuilt all tube instrument...

Page 24: ...The Spirit of Art in Technology 1317 Ross Street Petaluma CA 94954 USA 707 778 6565 FAX NO 707 765 1503 10 13 10...

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