M-PRE produces traditional British rock and metal sounds. The card allows wiring as a dual-volume preamp capturing the plexi vibe, or as a master-volume Marshall 800-style preamp for 1970s-era distortion. A modern update of these circuits allows much more dynamic tone control. Two 12A_7s allow tonal diversity. Local supply decoupling is included.
Use M-PRE as the distortion channel along with our F-PRE Fender-Style Preamp Kit as a clean channel for the highly sought after Fender-clean plus Marshall-crunch tone combo. Modern shredders can use M-PRE as the rhythm channel combined with our Z-PRE High-Gain Preamp Kit as the lead channel.
The board has silk-screening on both sides which allows you to stuff the components appropriately for INTERNAL or EXTERNAL TUBES. For INTERNAL, all the components are on the same side of the board; for EXTERNAL the components are on the opposite side from the tube sockets.
• Level-A / Gain
• Level-B / Volume
Power requirements: 12V-300mA; 320V-4mA
Use our PSU-PRE Preamp Power Supply Kit or similar to build a stand-alone preamp.
Combine with our AMP-25 to build an integrated amp.
This item’s “Standard DIY Kit” configuration includes PCB, tube sockets and components, and helpful installation notes including layout and schematic diagrams of the kit.
Configurations available for purchase:
Standard DIY kit (PCB + resistors + tube sockets + caps + notes) (M-COMP)
Pre-assembled kit – Internal tubes (M-BLT-N)
Pre-assembled kit – External tubes (M-BLT-X)
Hard parts only (M-HP)
PCB + notes only (M-PCB)
For more info on London Power Preamp Kits, see our Selecting a Preamp Kit page.
Need a chassis for your preamp project? See our Rack-Mount Chassis page, or browse under Building Supplies.
PCB size: 4.5″ x 1.5″ (115mm x 38mm)