On Tuesday, February 24, 2026 at 08:15:40 AM PST, Steve Swaine steveswaine100@gmail.com wrote:

I have not tried that, but that’s a good thought.   I have to find

something that has an external speaker connection.   Any issues

connecting a 16ohm speaker to an 8 ohm system for a short test?

Should not be a problem for testing.

I did try hooking up a 70 volt speaker I have to that output and it sounded great, but appreciate that’s not a complete verification that the speaker is bad.

It sounds from your description that you connected the 70 volt speaker

to the output for the cabinet speaker.  The line going to the cabinet speaker     is a regular 8 ohm connection,  All (with usual disclaimers) 70 volt speakers

are 8 ohms between the transformer and the speaker itself.  Connecting that

to the transformer of a 70 volt speaker will result in very low volume to that

speaker.  I'm guessing your speaker may have a loose internal connection

to the voice coil, of that the cone is rubbing on something, but the best way

to confirm that is to connect it to another amp and power it at the level at

which is distorts and see what happens.

Any suggestions on speaker reconning sources?   I will check around locally (St Charles, St Louis Missouri), but suspect I’ll have to send it somewhere.

I'm sorry, I don't.