GT Electronics STP-G User Manual

Connects standard 1/4" phone plug for guitar pickup. Designed for ordinary impedance.

Activates additional gain stage powered by a preamp tube, adding overdrive and slight noise.

Adjusts the level of the gain stage, increasing gain as it's rotated clockwise.

The primary volume control, affecting clean tones when gain is off and set low.

A classic shelving control for adjusting treble frequencies, best starting at 12 o'clock.

Adjusts midrange frequencies. Start at 12 o'clock and adjust to taste; interactive with other controls.

Pulling the Middle knob activates a 20 dB mid-boost, affecting mid tones.

A five-position selector (A-E) for fine-tuning mid-boost overtones from bright to dark.

A classic shelving bass control to adjust the overall bass response of the preamp.

Affects high frequencies in the final stage, most effective at lower volumes.

Used for powering a speaker cabinet; not recommended for recording mode.

Controls the output level of the Speaker Emulator for interfacing with consoles or amps.

Output from the emulator circuit, processed for full-range systems like mixers or PAs.

Output of the preamp section only, for slaving other amps; clean and sterile sounding.

Delivers 25 watts RMS into an 8 ohm guitar speaker; compatible with 4-16 ohm loads.

Location for the fuse; requires a 2 amp slo-blo fuse.

Details on preamp tubes V-1, V-2, V-3, their function, and recommended types for optimal performance.

Information on power tubes V-4, V-5, and V-6, their role in the amplifier's output stage, and matching.

Provides specific control knob settings for various playing styles and guitars.

Detailed examples of control settings for achieving specific tones like clean, crunchy, blues, and heavy rock.