Mesa/Boogie Heartbreaker Owner'S Manual Download Page 13

REAR PANEL:  

(Continued)

3 A SB

FUSE

WARNING: 
Unplug  power 
before replacing
fuse or removing
bolts mounting
chassis.

120 V.
3 A.
60 HZ.

POWER CORD RECEPTACLE:  The total power consumption for the 

HEARTBREAKER 

 is 3 Amps @ 117 Volts. Thus, a 15 Amp

circuit (which is what most house circuitry is wired with) is adequate. Make sure the Euro style A.C. power
cord is firmly seated in the POWER RECEPTACLE  before powering up the unit. This style of power cord
will make tear-downs and cable routing a lot easier and save you time as well. If you should ever need a
replacement, just call and  we’ll be happy to send you another one for a nominal charge.

POWER SOURCE:   This switch determines the line voltage coming into the 

HEARTBREAKERS’

 A.C. Mains and gives you the

ability to further tailor the power section to your style of music. Selecting the FULL NORMAL (upper) position allows the full  117
volts to enter the power transformer which produces a bolder, fuller sound. This setting would be recommended for the greatest

headroom when playing clean sounds. It also tends to have a bit more focus when using high gain sounds,
keeping the gain glued to single notes a little better, thus producing a more vocal lead sound.

Selecting the TWEED VARIAC (lower) position reduces the incoming A.C. Mains voltage to roughly 93
volts which scoops the mids and softens the sound. This position is recommended for any application
where a more vintage sound and feel is desired. Clean sounds have more scoop, allowing a higher frequency of
highs to become dominant resulting in sweet sparkle. The “HI” modes will have more spread in the upper
harmonic region which can add character and glow to low gain blues sounds. The whole feel also changes when
TWEED is selected, becoming more elastic and bouncy which again leans in a more vintage direction. The
POWER SOURCE feature offers a beyond hip, “best case” scenario between using an old low power vintage

amp and a modern high output amp connected to a Variac to alter the voltage with a flick of a switch! twice the tone - half the hassle.

RECTIFIER SELECT:   This patented switchable feature allows you to select between two different sounds and feel. It first appeared
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 

MAVERICK

TREM-O-VERB 

and the 

BLUE ANGEL

. Maximum

versatility has been added to these products by the inclusion of this cool, patented feature.

SOLID STATE (HI Power) calls up the silicone diode rectifiers offering more punch, a tighter attack with added
brightness and substantially more headroom. This would be the preferred position for loud clean playing or tight
rhythmic playing with a high front end VOLUME setting (high gain.) The VACUUM TUBE (Normal) position
takes a power section walk down memory lane, paying tribute to those vintage gems of yesteryear. In those
early days of amplification, the only rectifiers available were tubes. Unbeknownst to their creators, these sweet
sounding amplifiers would someday become relics as the demand for higher volumes and more power per
package led to the abandonment of the tube rectifier in favor of the five cent silicone diode’s greater efficiency.
With this decision went much of the sweetness and soul, and by the mid 70’s, many amps were bold, loud, and

efficient, and unfortunately...sometimes lacking some of that earlier soul.

We wanted the Dual Rectifier series to capture that...”thing” that you...”can’t quite put your finger on...but you know it when  it’s got it.”
Soul, Personality and Feel. The VACUUM TUBE position gives you a sweetness of sound and a liquid feel that simply cannot be
duplicated in any other way. This position shines for single note lead work in either channel and delivers a warm, breathing cl ean
sound in the LOVE channel that was previously unavailable in all but the best vintage amps. If you are like most of the players we
know, you’ll probably end up leaving your 

HEARTBREAKER

 set to the VACUUM TUBE position all the time. Regardless of your

preference the RECTIFIER SELECT switch gives you options that you won’t find anywhere else and versatility that makes the

HEARTBREAKER 

a born vintage performer in any stylistic arena.

FULL

NORMAL

TWEED

VARIAC

POWER

SOURCE

VACUUM

TUBE

SILICON

DIODES

RECTIFIER

SELECT

USE 6V6's WITH TWEED POWER

AND TUBE RECTIFIER ONLY

FULL

NORMAL

TWEED

VARIAC

POWER

SOURCE

VACUUM

TUBE

SILICON

DIODES

RECTIFIER

SELECT

USE 6V6's WITH TWEED POWER

AND TUBE RECTIFIER ONLY

PAGE 9

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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