Mesa/Boogie Heartbreaker Owner'S Manual Download Page 15

PRESENCE CONTROLS:  As illustrated below, the 

HEARTBREAKERS’

  PRESENCE controls are positioned just above the

REVERB controls and if viewing the 

HEARTBREAKER

 from the front, the PRESENCE control for Channel 1 (LOVE) is to the right

and closest to the POWER switch with Channel 2’s PRESENCE just to the left. Each channel has its own dedicated PRESENCE

control and they are totally independent of each other. Within
the first few hours of ownership, you may find yourself grop-
ing around a bit for either channels PRESENCE control, but
you will quickly learn to dial these with finesse without ever
having to look over the amp for them or at them. Aside from
striving to keep internal lead lengths to a toneful minimum,
placing these less used controls on the rear panel enabled us
to keep the front panel simple to operate and stay true to the
more vintage era design character to which the 

HEART-

BREAKER

  pays tribute.

REVERB CONTROLS:   As illustrated below, the 

HEARTBREAKERS’

 REVERB controls are positioned just below the PRES-

ENCE controls and if viewing the 

HEARTBREAKER

  from the front, the REVERB control for Channel 1 (LOVE) is to the right and

closest to the POWER switch with Channel 2’s REVERB just to the left. Each channel has its own dedicated REVERB control and
they are totally independent of each other. As with the above mentioned PRESENCE controls...and as we said earlier in this manual,

you will quickly learn to dial these rear panel controls with finesse with-
out ever having to look over the amp for them or at them. Aside from
striving to keep internal lead lengths to a toneful minimum, placing
these less used controls on the rear panel enabled us to keep thefront
panel simple to operate and stay true to the more vintage era design
character to which the 

HEARTBREAKER

  pays tribute.

POWER SELECT 100 / 60 WATTS:  The 

HEARTBREAKER

  may be used in a 100 WATT (Full Power) configuration or can be

switched down to a 60 WATT (Half Power) harness for smaller venues, added power clipping possibilities or, simply for different sonic
characteristics. The 100 WATT position sounds fuller and richer with more defined bass response. The 60 WATT position leans

towards a more bubbly, brighter sound that can be pushed more easily for power clip over-
drive. The 60 WATT position shuts down the two center power tubes, keeping them in “stand-
by” mode for instant power increases and may be switched while the 

HEARTBREAKER

 is

in operation. If you prefer the sound of the 60 WATT position you may feel free to use it all the
time with no penalty. You may then swap the two center 6L6’s for the outer pair in 6 - 12
months or so, in order to prolong the re-tubing intervals.

NOTE:     The power rating varies depending on the tubes in use:  These ratings are approxi-
mate and may vary with the individual tubes in use.
4 x  6L6    =  100 watts    2 x 6L6     =   60 watts
4 x  EL34  =  80 watts      2 x EL34  =   40 watts
4 x  6V6    =  40 watts      2 x 6V6    =   20 watts

REAR PANEL:  

(Continued)

BIAS SETTING MUST

MATCH TUBES IN USE!

BIAS

SELECT

6L6
6v6

6L6
6v6

EL34

EL34

VACUUM

TUBE

SILICON

DIODES

RECTIFIER

SELECT

USE 6V6's WITH TWEED POWER

AND TUBE RECTIFIER ONLY

REVERB

FOOT SWITCH

SEND

RETURN

REVERB

PRESENCE

CH2

REVERB

PRESENCE

CH1

BIAS SETTING MUST

MATCH TUBES IN USE!

BIAS

SELECT

6L6
6v6

6L6
6v6

EL34

EL34

REVERB

FOOT SWITCH

SEND

RETURN

REVERB

PRESENCE

CH2

REVERB

PRESENCE

CH1

60 WATTS

100 WATTS

PAGE 11

Summary of Contents for Heartbreaker

Page 1: ...OOGIE B MESA Owner s Manual The Spirit of Art in Technology 1317 Ross Street Petaluma CA 9495 USA...

Page 2: ...u down Your reward is that you are now the owner of an amp bred of fine all tube amp heritage benefiting from the many patented pioneering Mesa Boogie circuits that led to the refinement of your new i...

Page 3: ..._______________________ 8 POWER CORD RECEPTACLE ________________________________________________ 9 POWER SOURCE __________________________________________________________ 9 RECTIFIER SELECT __________...

Page 4: ...of lightning occurring nearby remove the power plug from the wall socket in advance To avoid damaging your speakers and other playback equipment turn off the power of all related equipment before mak...

Page 5: ...he world to channel switching in late 78 The next important development came in 1986 when Mesa pioneered the first Tri Modal footswitchable amplifier the Mark III The rest of the amplifier world soon...

Page 6: ...le Connect your favorite guitar to the instrument Input jack Turn the power switch ON while leaving the STANDBY switch set to STANDBY It is always a good idea to practice this start up procedure as at...

Page 7: ...ing to keep internal lead lengths to toneful minimum placing these less used controls on the rear panel enabled us to keep the front panel simple to operate and stay true to the more vintage era chara...

Page 8: ...are fed from several amp sources and then sent to a common power amplifier and set of speakers NOTE The SLAVE jack is not a tuned recording output or cabinet simulator and should not be used as such T...

Page 9: ...Set high it is the dominant control thus minimizing the amount of MID and BASS that would be possible in the mix Set low the TREBLE becomes the recessive control and a warmer darker blend is produced...

Page 10: ...ction that prevents a clean signal from passing through this circuit junction If you must use your HEART BREAKER at whisper levels to practice late at night etc get use to reducing the VOLUME as well...

Page 11: ...ars natural character to come through more urgently WARM adds low midrange and bottom end warmth to both modes produc ing great jazz and single note clean sounds for soloing in the LO mode while the H...

Page 12: ...lace it with the same rating in a slo blo type package The domestic U S version requires a 3 Amp slo blo FUSE A power tube short or failure is often the cause of a blown FUSE Follow the cold start pro...

Page 13: ...red on our Dual Rectifier Solo Head and is in fact part of the magic behind the whole Dual Rectifier series of amplifiers It has since found its way into some of our other products as well such as the...

Page 14: ...s instruction will result in dam age to the power tubes and possibly your amplifier 6L6 and 6V6 tubes use the UPPER POSITION 6V6 use TWEED POWER EL34 use the LOWER POSITION may use either TWEED or NOR...

Page 15: ...engths to a toneful minimum placing these less used controls on the rear panel enabled us to keep thefront panel simple to operate and stay true to the more vintage era design character to which the H...

Page 16: ...load of 16 ohms When using the Head version check your SPEAKER cabinets impedance rating and use the appropriate SPEAKER output jack on the HEARTBREAKER The HEARTBREAKER is not overly sensitive to mi...

Page 17: ...HI MODE NORMAL FAT BOOST CH 1 LOVE Presence INPUT SWITCH TREBLE MASTER VOLUME BASS MIDDLE HI MODE TRIM FAT HI MODE NORMAL BOOST CH 1 GAIN LO HI ON STANDBY POWER ON LEVEL BOLD CURVACEOUS ALL CH 1 LOVE...

Page 18: ...RIGHT FAT WARM CH 2 LUST CH 2 GAIN LO HI Presence ON STANDBY POWER ON LEVEL BOLD CURVACEOUS ALL TREBLE MASTER VOLUME BASS MIDDLE HI MODE TRIM HI LO MODE BRIGHT FAT WARM CH 2 LUST CH 2 GAIN LO HI ON ST...

Page 19: ...scription of Tube Functions V1A Ch 1 Input Stage LO Gain V4A Ch 2 Third Lead Stage Ch 1 Second Lead Stage HI Gain Tone Recovery Stage V1B Ch 1 First Lead Stage HI Gain V4B Ch 2 Fourth Lead Stage V2A C...

Page 20: ...ver heat before the others and thus it can be identified It should be replaced with one from the same color batch shown on its label Call us and we will send one out to you The severe short is not nea...

Page 21: ...blem You ll notice that tubes located nearer to the Input jack always sound noisier but this is because they are at the start of the chain and their noise gets amplified over and over by the tubes tha...

Page 22: ...DONE No tech needed NO bills and no BS about biasing And most important The bias is RIGHT because it can t change Now you want the long answer Here s more information on how our hard wired bias avoids...

Page 23: ...the fluctions in current flow are large and still at 440 per second you ll hear an A that is loud But for purposes of biasing it s the amount of plate current flowing with no signal applied that s im...

Page 24: ...you like paying to have your amp messed up Sorry I meant to say Uh your amp needed biasing If that doesn t appeal to you then merely plug a matched set of Mesa tubes into one of our amps and you re re...

Page 25: ...1047 607101 703047 703900 703782 1047 POT pt 1 5 A 3 A SB FUSE 117 V 3 A 60 HZ AC POWER RECEPTACLE WARNING Unplug power before replacing fuse or removing bolts mounting chassis Replace fuse with same...

Page 26: ...OOGIE B MESA Thankyou fortrustingMESA Boogietobeyouramplifiercompany We wish you many years of toneful enjoyment from this handbuilt all tube instrument The Spirit of Art in Technology...

Page 27: ...1317 Ross Street Petaluma CA 94954 USA The Spirit of Art in Technology...

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