The SGT-DI™ preamp and DI provides modern bassists with a complete rig in a single pedal. It features an enhanced Super Grit Technology™ overdrive circuit with iconic Ampeg SVT® and B15 voicings, a versatile 3-band EQ now with a sweepable Mid circuit, 3-way Ultra-Hi and Ultra-Lo switches, a variable compressor, and an Aux/Headphone section. Plus! Introducing Ampeg’s first-ever IR Loader/Cab Simulator. Choose from three classic factory cabs or up to three cabs of your choice using the free Ampeg IR Loader app.
3-band EQ with sweepable Mid circuit
SGT circuit with SVT and B15 voicing switch
Integrated IR Loader/Cab Simulator
3-way Ultra-Hi and Ultra-Lo switches
Variable 10:1 compressor
What is an impulse response and why should I care?
A speaker impulse response, or “IR,” is essentially a digital audio snapshot of a speaker that captures the acoustic characteristics of that specific speaker, as well as the signal chain used to record it (microphone(s), preamp(s), cable, etc.) and the room it was recorded in. IRs allow you to “virtually” switch between different speaker sounds in the same way you would swap out physical speakers.
SGT-DI is the first physical Ampeg product to feature IRs and IR loading.
SGT-DI comes with six preloaded Ampeg factory speaker IRs, three of which can be replaced with your own:
Cab mode features Ampeg Heritage B-15, Heritage SVT-410HLF, and SVT-810 Squareback IRs.
User mode features rewritable Ampeg SVT-112AV, SVT-210AV, and SVT-212AV IRs
The Cab Level control allows you to set and save the amount of cab IR sound in your signal.
IR Off mode completely bypasses the IR circuit.