Mesa/Boogie F-30, F-50, F-100 owner manual Gain, Treble, Mid

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,

fatter and more overdriven.

INPUT

GAIN

We worked hard to make sure that the entire range of Gain available is usable in the F-Seriesand 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-Seriesby 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.

TREBLE:

As in most tube guitar amplifiers, the TREBLE control ( in all three Modes of your F-Seriesamplifier ) 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 representa- tion of the three frequency regions to appear at their respective controls.

INPUT

GAINTREBLE

Like most of the controls on your F-Seriesamplifier 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. 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 above this median zone presents itself in Channel 1 of your new F-Seriesamplifier. 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 TREBLE control, it plays an integral part in achieving any sound in your cally as it blends in a group of frequencies that tend to soften or stiffen

the mix and though its effect is not as dramatic as that of the F-Seriesamplifier. It is capable of changing the feel dramati- the way a sound feels to play.

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

INPUT

GAIN TREBLE MID

PAGE 4