JPF Amplification operates out of Angel Music in London’s Denmark St. As well as building our own range of hand wired amplifiers, we repair, service, and modify all types of guitar and bass amp, and effects pedals. We also sell amplifier spares, including valves (or tubes if you’re from over the pond), vintage parts, and the excellent British made Tayden speakers.More about us.

We aim to provide a quality and affordable service. Initial investigation is FREE, and we have a very competitive £40/hr labour charge. We won’t undertake any work without the owner’s authorization, so no nasty surprises when you get your bill.

See our price list for more details, and our spares inventory.

We specialise in repairing vintage and classic valve amps (that’s tube amps to our US customers) including Fender, Marshall, Vox, Ampeg, Hiwatt, Gibson, Selmer, Orange, Laney, Matamp, Watkins, Wem, Sound City, Kelly, Traynor et cetera, but work on all types of amplifiers including modern valve amps such as Mesa Boogie and Peavey, and transistor amps such as Roland, Ashdown and Trace Elliot.

Work undertaken includes: general repairs, servicing, preventative maintenance, recaps, re-valving, biasing, modifications (e.g. Blackface conversion for Fender Silverface amps), de-modification, restoration of vintage amps, portable appliance testing (PAT), kit amp assembly (e.g. Mojotone, Ceriatone etc),  US/UK voltage conversion. We can also advise about speaker reconing, and loudspeakers upgrades. Visit our blog for examples of the type of work we do.

Our long list of satisfied customers ranges from people who play at home purely for their own amusement, through dedicated weekend warriors to arena stars. Whether you are playing in your living room, the Dog and Duck, or the Emirates stadium, we can get your amps and effects in tip top condition.

JPF Amplification is the London retailer of the excellent, British-made Tayden Loudspeakers. Click on the link for more info and sound clips. Check out this review of the Tayden 12″ guitar speaker range in Play Music Pickup magazine here.