Mesa/Boogie Heartbreaker Owner's Manual

OOGIEBMESAOwner’s ManualThe Spirit of Art in Technology1317 Ross Street Petaluma, CA 9495USA

BASS: This control blends in the lower frequencies and its effectiveness, again, depends on the setting of the TREBLE control. Itshould be set with

VOICING SWITCHES: Each channel contains two voicing switches which can further alter the HEARTBREAKERS’ sound.CHANNEL 1: TRIM / FAT: This toggle a

GENDER SWITCH: (Continued) CURVACEOUS: This setting is the more vintage sounding of the two. It softens, removing anyharshness and rounds out the cor

REAR PANEL: (Continued)3 A SBFUSEWARNING: Unplug power before replacingfuse or removingbolts mountingchassis.120 V.3 A.60 HZ.POWER CORD RECEPTACLE:

REAR PANEL: (Continued)RECTIFIER SELECT: (Continued) NOTE: The stock 5AR4 Rectifier tube is best suited for most applications. If you intend to use

PRESENCE CONTROLS: As illustrated below, the HEARTBREAKERS’ PRESENCE controls are positioned just above theREVERB controls and if viewing the HEARTB

SLAVE: This works great for using the HEARTBREAKER as a master send to a processor or when additional power amps areneeded for additional power. Some

CHANNEL 1 - LOVEPresenceINPUTSWITCHTREBLE MASTERVOLUME BASSMIDDLECH 1GAINLOHIONSTANDBY POWERONLEVELBOLDCURVACEOUSALLHI MODETRIMHI MODENORMALFATBOOST

CHANNEL 2 - LUSTPresenceONSTANDBY POWERONLEVELBOLDCURVACEOUSALLTREBLE MASTERVOLUME BASSMIDDLEHI MODETRIMHI & LO MODEBRIGHTFATWARMCH 2LUST*CH 2GAI

5AR412AX7REAR OF CHASSISGRAYREVERBWHITE(Each 12AX7 contains two separate Triodes)V 7 V 6 V 5 V 4 V 3 V 2 V 1B AB AB AB AB AB AB

Hello from the Tone Farm...YOU, the smart player and all around intuitive human, have put your trust in us to beyour amplifier company. This is somet

TUBE NOISE & MICROPHONICS:You may occasionally experience some form of tube noise or microphonics. Certainly no cause for alarm, this quirky beha

DIAGNOSING PRE-AMP TUBE PROBLEMS:Because your amplifier is an all tube design, it is quite possible that you will at some point experience minor pre-a

BIAS ADJUSTMENT: (Part of a continuing series)NOTE: An article written by Randall Smith thatwe thought you might find interesting.Here’s a question

BIAS ADJUSTMENT (Continued) doing is establishing the correct amount of idle CURRENT that flows through the power tubes.But you can’t adjust the cur

Some of the other recommended biasing, “methods” — such as -”.. tubes running red hot, increase the bias .. sounds harsh and runstoo cool, turn it dow

FRONT VIEW HEARTBREAKER REAR VIEW HEARTBREAKER INPUTSWITCHONPOWERSTANDBYONLEVELBOLDCURVACEOUSALLTREBLEMASTERVOLUME BASSMIDDLEHI MODETRIM FATCH 1GAI

OOGIEBMESAThank you for trusting MESA/Boogie to be your amplifier company. Wewish you many years of toneful enjoyment from this handbuilt all tubeinst

1317 Ross Street Petaluma, CA 94954 USAThe Spirit of Art in Technology

TABLE OF CONTENTSPrecautions ___________________________________________________________ Page #A Little History ______________________________________

Your MESA/Boogie Amplifier is a professional instrument. Please treat it with respect and operate it properly.USE COMMON SENSE AND ALWAYS OBSE

A Little History...Congratulations on your choice of the HEARTBREAKER as your amplifier! Its fine all-tube heritage is apparentin each soulful note

Before we get to the specific channels and their individual controls, let’s go over the HEARTBREAKER’S layout and features.THE PRE-AMP: Part of the

TO OPERATE: (Continued) both of the channels offer a TRIM / FAT voicing switch for the “HI” mode that enables you toeither let the guitars’ natura

OTHER FEATURES: An effects loop has been fitted to the HEARTBREAKER to provide for interfacing of outboard signal proces-sors. This loop occurs elec

At this point we would like to encourage you to take a break and enjoy your new amplifier for a bit. Give it a good test run and see what25 years of T