Owner manual

FRONT PANEL
4
1) INPUT Connect your guitar to this input using a standard ¼” shielded instrument cable.
2) BOOST This switch increases your level by 10 dB, which is very useful for live solos. The boost can also be activated by footswitch.
3) GAIN This knob sets the gain level, and is the preamp’s most powerful control. It not only determines the amount of drive or saturation
(for getting clean, crunch or overdriven sounds, or anywhere in between), but also plays an important role in tone shaping.
4) BASS This knob controls the amount of low frequencies in your sound. When you’re starting to explore sounds on the amp, avoid
boosting the lows too much as this can reduce your attack and muddy your sound—especially as you turn up your gain.
5) MIDDLE The Middle control regulates the midrange frequencies and is an important part of your tone shaping. The frequency range
it boosts or cuts has a big effect on the character of your sound. For a more “scoopy” tone, lower the mids. Turn up this knob for more focused
attack and better pitch definition.
6) HIGH The High knob controls the amount of high frequencies in your sound. It can produce unwanted noise (hiss) or pickup feedback
when really cranked, so it’s best to avoid extreme settings.
7) DRIVE ON/OFF In this combo we have included a convenient onboard overdrive-pedal circuit, which can be added to the preamp
distortion to increase its gain. This switch activates the Drive section (unless you’re choosing to control it by footswitch). It can be used like a
second channel that can be fine-tuned using the combo’s very effective tone controls.
8) DRIVE Controls how much distortion is applied in Drive mode, ranging from crunch to overdrive.
9) TONE Allows you to choose between a dark or bright distortion, or anywhere in between.
10) LEVEL Controls the overall drive volume, so you can match the distortion level to the clean volume when switching the Drive on
and off, or set the amount of boost you get when activating the Drive.
11) MASTER This control is the master feed from the end of the preamp channel to the tube power stage. It allows you to obtain a
wide range of sounds/colours in relation to the gain setting—for example, very low-gain sounds at high volumes, or high-gain sounds at low