Cab rear input plate burnt out!?

[Samlowe]

Evening all.

So I'm a moon lighting guitarist with a marshal 1960a 4x12. At practise tonight I noticed a smell coming from my cab, after removing the rear plate and being greeted by a puff of smoke, it was obvious something had been getting very hot on the 16ohm input (which I was using) So hot there is a visably chared area and melted plastic. All was setup correctly, impedance mono input ect

Any suggestion what may have caused this? I'm suspecting faulty speaker lead?

Also any ideas where I can get a replacement?

Thanks!

SL

[mickster]

Were you using a proper speaker lead to connect cab & head, rather than an instrument lead? The latter can get hot & melty if used in place of a real speaker lead...