Synergy Soldano SLO II All-Tube 2-Channel Tube Guitar Preamp Module

Synergy Dr. Z Z Wreck All-Tube 2-Channel Tube Guitar Preamp Module

Synergy DRECT All-Tube 2-Channel Rectifier-Style Tube Guitar Preamp Module

Synergy SYN1 Tube Preamp Module Dock w/ TDLX Tweed Deluxe Module

Synergy Friedman BE-DLX 2-Channel Guitar All-Tube Preamp Module

Synergy Peavey 6505 2-Channel Tube Guitar Preamp Module

Synergy Amps ENGL Powerball Dual Channel, All Tube Pre-Amp Synergy Module

Synergy Amps Bogner Ecstasy All Tube Dual Channel Preamp Module

Synergy Amps SYN-VAI Steve Vai Signature Dual Channel All Tube Pre-Amp Module

Synergy Amps Plexi Interchangeable Pre-Amp Module, 2 Channel, Tube Driven

Synergy Amps OS Dual; Channel All-Tube Synergy Module Preamp

Synergy Amps BMAN Interchangeable Pre-Amp Module, Bassman Inspired

Synergy Amps Soldano SLO Interchangeable Pre-Amp Module, Mike Soldano Designed

Synergy Amps TDLX Interchangeable Pre-Amp Module, Tweed Deluxe Inspired