The Controls of the Dirty Shirley Front Panel
POWER ON/OFF
The Dirty Shirley amp plug-in can be bypassed using this switch. Use this switch to
compare the processed settings to that of the original signal.
GAIN (Distortion):
The Gain knob on the Dirty Shirley controls the amount of distortion from the amp’s
12Ax7 driven preamp section.
MASTER:
This controls the amp’s output volume. The more you turn it up the louder it gets.
TONE CONTROL (Bass, Middle, Treble and Presence):
Bass, Middle and Treble controls boost or cut from their respective frequency
bands. 5 (midway) are the approximate null point for both Treble and Bass. 7-8
(about 2/3s-way) is the null point for the Middle band, giving players more con-
trol over scooping out mids, while plenty of headroom for boosting mids, making
the guitar more prominent in the mix.
Presence adds or removes brightness found in the upper mids and lower highs.
Just like Bass and Middle, 5 is the approximate null point.
INPUT selector (High & Low)
The Dirty Shirley’s 2 separate inputs play a role in how clean or distorted the amp
sound will be.
Input L is a lower sensitivity input that is best suited for cleaner tones and easing
in the amount of break-up.
Input H is a higher sensitivity input that is best suited for higher amounts of gain
(distortion).
