JTM45 Preamp

Handmade in Canada  JTM45 was the first amplifier by Marshall, yet it remains as much of a classic icon to this day. The tones of this amp can be heard on countless records from Eric Clapton's blues to AC DC's hard hitting Rock.

This is our take on the legendary JTM45 using JFET's which are excellent for emulating vacuum tube triode behaviour. While the market has several "JTM' type pedals available, we find that most tend to be too gainy and are more like distortion pedals as opposed to actual amp emulators. The idea behind this design was to recreate the tone of the late 50's early 60's JTM45 amps in a pedal preamp format, which can either be used as a drive on your pedal board, or as a standalone preamp fronted with overdrives as you would with an actual tube amp.

Controls are similar to what one will find on a two channel JTM45 from that era. Channel I and Channel II are internally jumpered, as preferred by many rock musicians, and can still be individually controlled using the seperate volume control for each channel.

Master: Controls the overall volume Bright : Volume control for the Treble channel Normal: Volume Control for the Bass Channel
Bass, Mid, Treb: 3 band Tone stack as found in Marshall amps
Pres: Increases Presence Bypass Stomp SW: True Bypass Boost Stomp SW: Lead volume Boost for solos
Just like an actual tube amp, the gain on tap is medium and can be driven harder by using overdrives in front of it.
Since this is a preamp unit, it can either be used on a pedal board in signal chain as a drive, or you can run it directly into the return of the effects loop of your favourite tube amp. Another way to use it is to run it directly into your DAW followed by speaker IR's.

This pedal runs on standard pedal power center negative DC supplies. It can be run from 9-18V for more headroom.