Presence Control; Reverb Controls; Power Select 100 / 60 Watts - Mesa/Boogie Heartbreaker Owner's Manual

REAR PANEL:
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
BIAS SETTING MUST
MATCH TUBES IN USE!
VACUUM
6L6
6L6
TUBE
6v6
6v6
SILICON
EL34 EL34
DIODES
BIAS
RECTIFIER
SELECT SELECT
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,
BIAS SETTING MUST
MATCH TUBES IN USE!
6L6 6L6
6v6 6v6
SEND
RETURN
EL34 EL34
BIAS
SELECT
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
(Continued)
SEND PRESENCE
CH2
RETURN
REVERB
REVERB
FOOT SWITCH
PRESENCE
PRESENCE
CH2
REVERB REVERB
REVERB
FOOT SWITCH
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
100 WATTS
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-
60 WATTS
mate and may vary with the individual tubes in use.
4 x 6L6 = 100 watts 2 x 6L6
4 x EL34 = 80 watts
4 x 6V6 = 40 watts
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
PRESENCE
striving to keep internal lead lengths to a toneful minimum,
CH1
placing these less used controls on the rear panel enabled us
REVERB
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.
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.
CH1
2 x EL34 = 40 watts
2 x 6V6 = 20 watts
= 60 watts
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