Synergy Tube Guitar Amplifier Heads

Synergy Marshall JCM 800 Dual-Channel Tube Preamp Module

Synergy Tone King Imperial Tube Preamp MKII Module

Synergy SYN-20IR 20W Tube Guitar Amp Head

Synergy Soldano SLO II Tube Preamp Module

Synergy Friedman BE-Deluxe 2-Channel Preamp Module, 2 x 12AX7

Synergy Peavey 6505 2-Channel Preamp Module, 2 x 12AX7 -

Synergy Fortin Killer Kali Tube Preamp Module