User Manual

2 GAIN

This knob controls input sensitivity for all of the preamp's operating modes. For

Crunch, Soft Lead and Heavy Lead modes, it determines the amount of preamp

saturation. The AFC controls an internal filter that operates in parallel to the Gain

knob, automatically adapting and optimizing the frequency response of the

preamp to best match the setting you have selected.

A tip from the designer:

On account of its programmability, the preamp's Gain knob's response is different

than you would expect from gain controls found on conventional preamps. The

signal is not muted completely when you set it to step 1. For this reason, you can

dial in extremely low input levels for extremely high-level guitar signals. That puts

the low gain control range below step 5 (about the 9 o'clock position) to good

use, which is rarely the case on a conventional amp.

Sound-shaping Features: Knobs (Rotary encoders)

A word about these knobs:

The Gain (2), Bass (3), Lo Mid (4), Hi Mid (5), Treble (6), Effect (7), and Volume

(8) knobs offer a control range comprising 21 steps. Like the status of the

sound-shaping buttons, the settings of these knobs may be programmed to MIDI

presets 1 to 128, bank A and bank B. The 11-segment LEDs surrounding every

knob indicate the given knob's current setting.

Odd-numbered steps are indicated by a single LED. Take, for example, step 5 or

the fifth increment on the scale. It is indicated by the third LED from the left. Even

steps are indicated by two neighboring LEDs. For example, the first and second

LEDs of the scale light up to indicate step 2, and so forth.

You can change every setting of any MIDI preset directly, meaning there's no

programming involved. Simply grab a knob and rotate. When you do this, that

change you have made activates MSF (memory status feature) and the given LED

will flash, telling you that this knob's setting in a MIDI or factory preset has been

edited. The circular and segmental LED chains always show the knobs' current

settings. In addition, steps are indicated in the display as decimal numbers as you

dial in a new setting. By giving you precise indications of any given value, this

feature lets you adjust knobs more swiftly and accurately, particularly when you're

in a hurry.

The Master knob is an exception to this rule. Its workings are described in detail in

section 9 below.

Front Panel Features

As you're reading these descriptions of the preamp's features, you'll gain a better

understanding of the topic at hand if you unfold of the diagrams of the front and

rear panels at the back of the manual and refer to them as we go!

1 INPUT

Plug your electric guitar into this ¼" jack.

If you choose to mount the amp in a 19" rack system, you can also route the

signal in via the Auxiliary jack (41) located on the rear panel of the preamp.

Input jack 1 on the front panel has priority, meaning that the signal patched into

the Auxiliary jack is cut off whenever a plug is inserted into the front panel jack.