Seymour Duncan Twin Tube Classic, SFX-03 manual Explanation of Controls, Top Panel

Explanation of Controls

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Top Panel

1 Rhythm Gain – Inter-stage gain control for the Rhythm Channel. Provides varying degrees of overdrive and saturation.

2 Rhythm Channel Status Indicator – When lit, it indicates that the Rhythm Channel is active or staged for activation if the unit is bypassed.

3 Rhythm Volume – Master volume control for Rhythm Channel. Positioned at end of the gain chain, it regulates the loudness relative to the other channel and to the bypassed sound.

4 Lead Gain – Inter-stage gain control for the Lead Channel. Provides for varying degrees of distortion and saturation.

5 Lead Channel Status Indicator – When lit, it indicates that the Lead Channel is active or staged for activation if the unit is bypassed.

6 Lead Volume – Master volume control for Lead Channel. Positioned at end of the gain chain, it regulates the loudness relative to the other channel and to the bypassed sound.

7 Treble – Controls high frequency content in both channels with greatest effect in the range of 2 KHz to 20 KHz.

8 Bass – Controls low frequency content in both channels with greatest effect in the range of 40 Hz to 200 Hz.

9 Channel Selector – Selects between the Lead and Rhythm channels. It is possible to pre-select the gain or volume for a channel when in bypassed mode. This allows the fl exibility of transitioning from bypass to either channel without having to step through

4different sounds.