Mesa/Boogie Heartbreaker Owner's Manual page 7

TO OPERATE: (Continued)
either let the guitars' natural character come through the gain unaltered or, fortify it with a little warm gain for a smoother
lead voice.
The LUST channel incorporates a BRIGHT / WARM switch that allows you to either scoop the midrange a little for sweeter
vintage style clean sounds and increased headroom or, thicken up the sauce for a warmer clip when pushing the "LO" mode
for soloing or going for more girth in the "HI" mode. After deciding on the sound you wish to use in each channel and you 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.
Each channel has its own dedicated PRESENCE and REVERB controls which are located near the center of the rear panel and are
stacked vertically per channel. When reaching from the front of the unit for these controls, the PRESENCE is located on top (nearest
to the top of the cabinet) and the REVERB control for that same channel is directly below it. When viewing the HEARTBREAKER
from the front, the REVERB and PRESENCE controls for Channel 1 (LOVE) are to the left (closest to the INPUT jack) and the two
controls for Channel 2 (LUST) are to the right (closest to the power ON/OFF switch.)
Within the first few hours of ownership of the HEARTBREAKER you may find yourself groping around a bit for these two controls,
but you will quickly learn to dial these with finesse without ever having to look at them...especially the PRESENCE which becomes
easy to dial on the fly after you've logged a few hours on the amplifier. Aside from striving 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 character to which the HEARTBREAKER pays tribute.
REAR VIEW HEARTBREAKER
1.5 A
USE 6V6's WITH TWEED POWER
WARNING: Replace
AND TUBE RECTIFIER ONLY
Unplug power fuse with
FUSE
before replacing same type
FULL
fuse or removing and rating NORMAL
bolts mounting only.
3 A SB
chassis.
TWEED
VARIAC
117 V.
3 A. POWER
SOURCE
60 HZ.
THE POWER: The HEARTBREAKER starts with a 100 Watt (mono) power amp that boasts our patented Switchable Rectifiers
(Tube or Solid State) which alters the whole character of the attack from either springy and compressed - to dynamic and forward. This
versatile power section can also accommodate either 4 x 6V6 power tubes (Use Tweed Power Only) - producing roughly 40 watts)
- or - the Bias may be set via the rear panel switch to properly run 2 x EL34 (recommend 5U4G Rectifier Tube) or 4 x EL34 (with the
standard 5AR4 Recto Tube in place), giving you your choice of approximately 45 or 90 watts respectively, of a more Euro style power
personality. The aforementioned Tweed Power switch works as a built in Variac, letting you choose between the standard 117 volt
operation - and a looser, more vintage 93 volt setting.
Finally, a master "Power Voicing" feature appears as the Gender switch found on the right side of the front panel. "BOLD" and
"CURVACEOUS" reveal two distinct and opposite mannerisms. "BOLD" brings the sound forward, enhancing dynamic response and
increasing headroom substantially. "CURVACEOUS" scoops the sound and produces a more vintage voice with increased elasticity
apparent at the strings thus adding an extra element of emotion, soul and feel you will need when your out to invoke tears with your
tone.
both of the channels offer a TRIM / FAT voicing switch for the "HI" mode that enables you to
BIAS SETTING MUST
MATCH TUBES IN USE!
VACUUM
6L6 6L6
TUBE
6v6
6v6
SEND
RETURN
SILICON
EL34 EL34
DIODES
RECTIFIER BIAS
SELECT
SELECT
PRESENCE PRESENCE
CH2 CH1
REVERB REVERB
REVERB
FOOT SWITCH
PAGE 3
100 WATTS
SPEAKERS
8 OHM
SLAVE
16 OHM
60 WATTS
2x12 COMBO
4 OHM