Synergy Marshall JMP Preamp Module 2-Channel Tube Preamp Module With Per-Channel Vol. 1 And Vol. 2 Controls, 3-Band EQ, Master Control, And

Synergy OS 2-Channel Preamp Module Tube Preamp Module With 2 X Channels, 2 X 12Ax7 Preamp Tubes, And Dual/Single Switch

Synergy SYN2 Rackmount Preamp Module Dual Module Dock - No Module Included Rackmount Preamp Dock With 2 X Module Docks, 1 X 12Ax7 Preamp Tube, Sag

Synergy Morgan AC 2-Channel Preamp Module Tube Preamp Module With 2 X Channels, 2 X Bright Switches, And 2 X 12Ax7 Preamp Tubes

Synergy Friedman BE-BB 2-Channel Preamp Module Tube Preamp Module With 2 X Channels, 2 X 12Ax7 Preamp Tubes, And Dual/Single Switch

Synergy Fryette Deliverance Module 2-Channel Preamp Module 2-Channel Tube Preamp Module With 2 X 12AX7 Preamp Tubes, Gain I/Gain II Structure,

Synergy T/DLX 2-Channel Preamp Module Tube Preamp Module With 2 X Channels, Dual Bright And Tight Switches, Independent EQ, And 2 X 12Ax7 Preamp

Synergy ENGL Savage 2-Channel Preamp Module 2-Channel Preamp Module With 2 Gain/Hi Switches And Contour Switch

Synergy Plexi 2-Channel Preamp Module Tube Preamp Module With 2 X Channels, Blendable Gain Controls, And 2 X 12Ax7 Preamp Tubes

Synergy DRECT 2-Channel Preamp Module 2-Channel Tube Preamp Module With Per-Channel Gain, Volume, 3-Band EQ, Presence, And Orange/Red Controls

Synergy Diezel Herbert 2-Channel Preamp Module 2-Channel Tube Preamp Module With 2 X 12AX7 Preamp Tubes, Global 3-Band EQ, Dual Gain/Volume Knobs,

Synergy Fryette Pittbull Ultra Lead Module 2-Channel Preamp Module 2-Channel Tube Preamp Module With 2 X 12AX7 Preamp Tubes, Dual Gain/Volume Knobs,

Synergy BMAN 2-Channel Preamp Module Tube Preamp Module With 2 Channels, 2 X 12Ax7 Preamp Tubes, 2 Tight Switches, And 2 Bright Switches

Synergy SYN1 Tabletop Preamp Module Dock With Marshall JMP Preamp Module Tabletop Preamp Dock With 1 Module Dock, 1 X 12Ax7 Preamp Tube, Sag

Synergy SYN-50 50-Watt 4-Channel Tube Head - No Modules Included Guitar Amp 50-Watt 4-Channel Tube Amplifier Head With 2 Preamp Module Docks, FX

Synergy Bogner Ecstasy 2-Channel Preamp Module 2-Channel Tube Preamp Module With 2 X 12AX7 Preamp Tubes, Blue And Red Channels, Dual