Originally Posted By: bobt
2X6 the 504 looks just like yours. But again i'm not willing to risk blowing it up. Basically with these old amps..you keep throwing them in protection...NOT good.


Using them at all is going to wear on them, too. As old as it is, it's already well into its life. Protecting your equipment from its own protective measures is fine, but as you mentioned, you don't mind frying a new one that you can then return as faulty. Straitjacket logic, indeed.