Mesa/Boogie Heartbreaker Owner'S Manual Download Page 11

VOICING SWITCHES:   Each channel contains two voicing switches which can further alter the 

HEARTBREAKERS’

 sound.

CHANNEL 1:  TRIM / FAT:  This toggle affects the “HI” mode only. It adds midrange warmth and gain saturation to round out the sound
(FAT), or reduces saturation to leave the natural sound of your guitar more intact (TRIM).

CHANNEL 1:  NORMAL / BOOST:  This toggle affects the “HI” mode
only. The “HI” mode of Channel 1 contains two levels of gain, each with
their own distinct personality. NORMAL is a lower gain setting that is
optimized for more traditional styles where less saturation is desired.
This setting will allow more of the guitars’ natural character to come
through. BOOST adds gain and shifts the lower mids to fatten and
saturate, producing a more liquid and sustaining lead voice.

NOTE:  Use CAUTION when switching to the BOOST position - turn the MASTER down! The extra gain that is added when
this voicing is chosen increases the volume substantially.

CHANNEL 2: TRIM / FAT:  This toggle affects the “HI” mode only. It adds midrange warmth and gain saturation to round out the sound
(FAT), or reduces saturation to leave the natural sound of your guitar more intact (TRIM). BRIGHT / WARM: This toggle affects both
“HI” and “LO” modes. BRIGHT dips the midrange in both modes - creating more sparkle and letting more low end breath through for
clean sounds in the “LO” mode. In the “HI” mode, BRIGHT strips mids to allow the guitars’ 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 “HI” mode gets more liquid and sustain is increased.

LEVEL CONTROL:   After deciding on the sound you wish to use in each channel and have set the desired balance between the two

channels’ with each MASTER control, you can use the LEVEL control located on the right
side of the front panel to adjust the overall playing level of the entire amplifier. This allows
you to adjust for different rooms without having to alter your individual channels once you
have found your sound.

GENDER SWITCH:   (BOLD / CURVACEOUS “Power Voicing”) - With this switch the entire personality of the 

HEARTBREAKER

may be altered radically at the end of the power section by adding or deleting negative feedback to the power stage. This reconfiguring

of the power stage has a drastic effect on both the dynamic response and the output of this
stage, turning the whole amp from a sweet vintage gem to a modern raging beast with a flick
of the switch. This revoicing may be done at any time, independent of all other controls and
affects both channels simultaneously.

FRONT PANEL & CONTROLS:  

(Continued)

INPUT

SWITCH

INPUT

SWITCH

TREBLE

MASTER

VOLUME 

BASS

MIDDLE

HI  MODE

TRIM

FAT

HI MODE

NORMAL

BOOST!

HI  

CH 2

LO

LO

HI

CH 1

CH 1

TREBLE

MASTER

VOLUME 

BASS

MIDDLE

HI  MODE

TRIM

FAT

HI & LO

BRIGHT

WARM

GAIN

LO

HI

HI  

CH 2

GAIN

CH 2

LUST

CH 1

LO

CH 1

ON

POWER

STANDBY

ON

LEVEL

BOLD

CURVACEOUS

ALL

ON

POWER

STANDBY

ON

LEVEL

BOLD

CURVACEOUS

ALL

PAGE 7

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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