Treble - Mesa/Boogie Dual Rectifier Roadster Amp Owner's Manual

CONTROLS:
NOTE: Due to the Roadster's extreme gain potential, the highest regions of the NOTE: NOTE:
Roadster's extreme gain potential, the highest regions of the
Roadster's
past what they can handle, producing microphonic squealing. While we screen and test the tubes your amplifier was shipped with
and the tubes in your amp passed our rigourous test, we can't predict how the tubes will respond over time exposed to extreme
gain settings.Your tubes are warranted for a period of 6 months under normal use, but you can save yourself the present and future
inconvenience of having to deal with annoying microphonic tube problems by simply using a little common sense...Don't turn the
Gain all the way up!
If you must for a specific part or at very low volumes, back down the TREBLE and PRESENCE controls.Your Roadster was designed
to provide amazing gain and tone at less than extreme settings removing the need for you to crank everything all the way up. If you
are not able to achieve the sound you want at sensible settings on any or all of the controls, your problem may lie elsewhere in the
signal chain, i.e. pick-ups, cabinetry, processing etc. Keep in mind you can always call on one of our product specialist Monday through
Thursday and seek some advice should you find yourself struggling to get the sound you want.
2.) GAIN - In conjunction with the Tone controls - Basically, a simple rule applies...as the Gain is increased the Tone control string
has less and less effect on the signal until at 5:00 the signal is so saturated that you are getting mostly Gain and very little Tone. Again,
this is the reason we suggest using the GAIN control in its middle region. Here the Tone control string is very active and provides
maximum shaping power - allowing you to dial virtually any sound you desire.

TREBLE:

As in most tube guitar amplifiers, the TREBLE control ( in all four channels of your Roadster ) is the most powerful of the
rotary controls and is next in line only to the GAIN control as a shaping tool. Because it is first in the signal path of the tone controls
- and from here the Middle and Bass receive their signal - it is by far the dominant tone control. For this reason the setting of the
TREBLE control is very important for equal representation of the three frequency regions to appear at their respective controls. Like
CLEAN
FAT
TWEED
GAIN
CLEAN
FAT
BRIT
top end for a more compressed feel and fatter voice. As you might surmise, the BASS controls' effectiveness will be reduced, so you
may have to run a much higher setting than you are used to seeing to achieve a balance. This said, keep in mind that the TREBLE
control in Channel 1 TWEED should be used sparingly above 2:30 to avoid unwanted microphonic tube problems.
MID:
The MID control is responsible for the blend of midrange frequencies in the mix and though its effect is not as dramatic as that
of the TREBLE control, it plays an integral part in achieving any sound in your Roadster. It is capable of changing the feel dramatically
as it blends in a group of frequencies that tend to soften or stiffen the way a sound feels to play.
Most players tend to lean in the direction of lower MIDDLE control settings ( 7:00 - 11:00 ) where a scoop in this region produces
girth ( by letting the Bass become a little more dominant ) and a lack of punch lends a more compressed, even feel to the strings and
therefore less apparent resistance to the pick. As the MIDDLE control is increased, ( 11:30 - 1:30 ) the sound is rounded-out and
(Continued)
most of the controls on your Roadster, there is an optimum region of the TREBLE
control where ample top end is mixed in and yet enough signal is still passed on to
the MIDDLE and BASS controls.
As you might surmise, here is the sweet spot.
above and below this middle region ( 11:00 - 1:30 ), but the balance between the
TREBLE
TREBLE control and the other two tone controls is compromised.
The one place you may want to throw caution to the wind and set the TREBLE control
above this median zone presents itself in CHANNEL 1 of your new Roadster. In all 3
modes ( CLEAN, FAT & TWEED ), the TREBLE control can be used to dump extra
gain into the mix.This is especially effective in the TWEED mode for crunch sounds.
When doing so use the PRESENCE control to roll off some of the more than ample
GAIN control may possibly push the pre-amp tubes
sweet spot There are definitely great sounds sweet spot.
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even even feel to the strings and