I have had a Marshall 1960A Lead 4×12 cabinet in with problems.
Only two out of the four drivers were working on mono 4Ω mode and one of the four was making bad noises. This cab relies on the switch contacts on the two jack sockets to connect the two pairs of drivers in series (16Ω) or parallel (4Ω) depending on which socket is used. The switch contacts on the original sockets are nickel silver or tin plated and can’t stand much current without burning out. This is what happened in this case. The arcing had heated the contact enough to melt the plastic body.
To fix the fault I replaced both switch jacks with gold plated Neutrik / Rean NYS2152G replacements. They fit perfectly and should last a bit longer than the originals. I also sprayed the centre Mono / Stereo switch with contact cleaner. There was also a loose spade connector on one driver which I pinched up with pliers to solve the bad noises.
Please note 4×12 has been sold.
Marshall JVM 210H Valve Head £666
Owner needed something much quieter as they are doing tiny gigs.
12 months old gigged only a handful of times
This amp was fully serviced in November 2014 and had a new set of EL34 power tubes. It is fully functional and PAT safety checked.
Packed with modern features including three modes per channel, MIDI, dual master volume, series & series/parallel effects loop, reverb and a programmable footpedal connected via a standard guitar lead.
100-Watt valve head
Valve complement: 5 x ECC83 (12AX7s)and 4 x EL34
independent, footswitchable channels – Clean / Crunch and Overdrive
Each channel boasts 3 footswitchable modes Green, Orange & Red
Studio quality, footswitchable digital reverb with level controls for both channels.
2 footswitchable master volumes
Two FX loops Series/Parallel & Parallel
Emulated line out
4 way footswitch with memory capabilities (UK patent pending)
All switching can be done via MIDI
Made in England
Marshall 1960BV 4 x 12″ Speaker Cabinet £SOLD
Please ring or email first to arrange viewing.
Compact 65 Watt combo with plenty of volume and combined channel feature.
I am impressed with the myriad different sounds you can get from this amp. If you put the guitar jack in input 2, both the clean and drive channels are mixed giving a rich mix of harmonic content with easy control. It does not have the original speaker but it sounds good to me. Comes with wired in foot channel/reverb switch and spring reverb tank.