I used the Mosfet at last night's gig and....

[Guitarbilly]

According to information on the Marshall forum, the Mosfets used are no longer produced.

Yeah the original Hitachi Mosfets are long gone. But there are suitable replacements for them. The Semelab BUZ 900s are drop-in replacements for them and they're widely available. They're probably too expensive for a company to use in a SS amp in a large scale though, especially when Class D is so much cheaper and customers seem to be fine with it.

[Spaced Out Ace]

According to information on the Marshall forum, the Mosfets used are no longer produced.

Yeah the original Hitachi Mosfets are long gone. But there are suitable replacements for them. The Semelab BUZ 900s are drop-in replacements for them and they're widely available. They're probably too expensive for a company to use in a SS amp in a large scale though, especially when Class D is so much cheaper and customers seem to be fine with it.

I don't like the sound or feel of Class D. It doesn't really sit well with my ears.

[Guitarbilly]

^^^^ yeah same.

[FAKA!]

Sounded great man!