Gain; Treble; Mid - Mesa/Boogie F-100 Owner's Manual

CONTROLS:

GAIN:

This is by far the most powerful control in each of the three different Modes that are activated by the Mode switch. It not only
determines the overall gain amount, shape and sensitivity of the Mode selected...but it is also a powerful Tone control. Generally
speaking, whatever is dialed up here ultimately determines the Modes' personality. Set low, it allows cleaner and brighter sounds with
enhanced dynamic response, especially in the higher frequencies. Set high, the whole personality of the Mode becomes darker,
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GAIN

TREBLE:

As in most tube guitar amplifiers, the TREBLE control ( in all three Modes of your F-Series amplifier ) 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
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GAIN
above this median zone presents itself in Channel 1 of your new F-Series amplifier. The TREBLE control can be used to dump extra
gain into the mix. 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 should not
be set much above ( 3:30 ) 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 F-Series amplifier. It is capable of changing the feel dramati-
cally as it blends in a group of frequencies that tend to soften or stiffen the way a sound feels to play.
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GAIN
fatter and more overdriven.
We worked hard to make sure that the entire range of Gain available is usable in the F-Series and
more importantly, musical. Don't think for a moment that this simple layout limits you in any way in
regards to the amount and texture of Gain that is available. Long neurotic hours were spent to
ensure that the ranges of Gain were stylistically accurate. It's probably a good time to mention that
most of the great sounds can be found in the F-Series by setting the GAIN control moderately in the
Lead 2 - Contour mode.
In the Channel 1 Mode, try setting this control somewhere between ( 11:00 through 1:00 ). Use of
moderation here will reduce the likelihood of pesky tube microphonic problems ever occurring,
while at the same time making all three Modes easier to balance in volume and FX send strength.
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 representa-
tion of the three frequency regions to appear at their respective controls.
Like most of the controls on your F-Series amplifier there is an optimum region of the
TREBLE control where ample top end is mixed in and yet enough signal is still passed on
TREBLE
to the MIDDLE and BASS controls. As you might surmise, here is the sweet spot. There
are definitely great sounds above and below this middle region ( 11:00 through 1:30 ), but
the balance between the 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
Most players tend to lean in the direction of lower MID control settings ( 7:00
through 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 com
TREBLE MID
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