Sincere apologies if you haven’t been able to access the site, all posts should now be working! We’ve also updated the site so hopefully it will work better on mobile devices.
I’ve opened a twitter account for PlexiMods which will automatically tweet with a link to any new site update. The address is http://www.twitter.com/pleximods, click follow to keep up with any site updates or to get in touch! I know the Read more
DO NOT touch anything inside your amp chassis before doing this! In your amplifier the filter capacitors (the large cans that stick on top of the chassis, sometimes the preamp one is board mounted) store voltages long after use, so Read more
One useful modification to add to an amp is to add 330k resistors in parallel to ground with all your can filter capacitors. By adding these the voltage automatically drains from the filter capacitors in minutes, and theoretically this reduces Read more
If you’ve ever heard of ‘no-load tone controls’ or removing tone controls completely for a guitar, this mod is pretty similar, but for an amp. Basically it involves lifting the wire going from the middle pot to ground, thus taking Read more
The two main tone stacks used by Marshall over the years was first the 56k slope resistor and 250pf capacitor combination – this was used exclusively until 1968 on all their amps. Later on Marshall started using the 33k/500pf combination, Read more
Whether you’ve installed a Metroamp PTP board in your amp instead of the printed circuit board, or you’ve bought one of the Marshall effects loop boards separately from your local Marshall distributor to retrofit into your amp, this is a Read more