Reverb; Channel_&_Solo; Bias_Select - Mesa/Boogie Lonestar Owner's Manual

REAR_PANEL:_

REVERB:

The LONE_STAR_ incorporates a stunning analog Reverb circuit that is fitted with individual Channel Mix controls and a unique
Reverb Voicing feature that offers a choice between two classic reverb sounds.
B
M
ESA OOGIE
LONE STAR
CH_2____REVERB_____CH_1
LOOP_
IN
HARD_BYPASS
CHANNEL_&_SOLO:_External_Switch_Ports:
as well as activation of the SOLO control. These jacks may be connected to an external control unit that stores a grounding logic switch function
ALL - TUBE
AMPLIFIER
REVERB
CHANNEL SOLO
BRIGHT
EXT
SW
REV_WARM

BIAS_SELECT:

This mini toggle allows for proper biasing when swapping to EL34 type power tubes for a brighter harmonic laden response.
It selects a different set of bias resistors and insures that these extremely different power tubes will sound better and work much more reliably.
The adjacent LED indicator alerts you that the bias has been set to accommodate the EL34's.
NOTE: It is extremely important that the BIAS_SWITCH_setting match the type of tubes in use. Failure to comply will result in damage to your
amplifier. Always check the BIAS_SWITCH whenever swapping tubes!
If you are doing mostly cleaner rhythm style playing and go for a warmer fatter lead solo voice as well as need a
variety of sounds, you will likely prefer the stock compliment of 6L6's. They clip in a warmer way and during our R &
BIAS_SELECT
D process we found them to produce the best blend of frequencies with the least compromise stylistically.
SPEAKERS
EL-34 EL-34
There are however, some wonderful clipped power sounds available for both chording and single note work with the
WHEN
6L6
8_OHM 4_OHM
RED_ON
right set of EL34's fitted. Aficionados of this sound have long recognized that nothing produces the layers of soft,
CAUTION:__SWITCH_MUST_
HAND_BUILT_IN_PETALUMA_CA.
lined-up harmonics like these British style bottles and when dialed right, the LONE_STAR_takes on a whole new
MATCH_TUBES_IN_USE
personality. So when you have finished exploring this side of the Atlantic for vintage magic, definitely take a jump
across the pond and check out some of the amazing sounds that are made possible with the inclusion of the BIAS_SELECT feature and these
opposite sounding tube types.
We_recommend_the_6L6_for_reliability: In our many tests and continued use of the currently available EL34 type power tubes on the market
today, we regret to say that they do not appear to be as rugged in construction or as reliable as their 6L6 counterparts. This fact, along with their
sonic narrowing of possible styles, is why the LONE_STAR ships with 6L6 power tubes.
If you find that your signature sound relies on using EL34 power tubes, then we strongly suggest keeping at least one spare set of tubes and a
bag of extra fuses with you at all times when performing in the event of a tube failure. A little preparation will save you a lot of frustration should
one of these less rugged tubes fail.
NOTE: Using the AC POWER switch set to TWEED will reduce the strain on EL34 tubes (and 6L6 as well). If you prefer the sound of this set-
ting, you will reduce the likelihood of tube problems and greatly extend their toneful life, as they are basically coasting.
(Continued)
ALL - TUBE
REVERB_BRIGHT produces a vintage guitar amp style brighter sound filled with canyons of har-
AMPLIFIER
monics and the classic spring resonance, while REV_ W ARM features a smoother, warmer character
REVERB
often associated with large plate studio reverbs. You will quickly see why we think the LONE_STAR_
BRIGHT
Reverb is possibly our best reverb to date. Enjoy!
REV_WARM
These two 1/4" jacks provide an interface for remote control of the Channel Select function
under a midi program number, thereby removing the need to use the included LONE_STAR Footswitch in
larger stage rigs.
The EXTERNAL_SWITCH jacks respond to any tip-to-ground latching type logic for their triggering. This
type of switching logic can be found on most midi master control switching units on the market.
SLAVE
4_OHM
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