I hope they are genuine Neutrik combo connectors.
Apparently a great many SpeakOn knock-offs are very fragile junk!
Oh, Len! Did you try running a 1/4" plug in & out of the FX Return jack? There's a switch there that lets the pre-amp signal proceed to the power amp when the loop is not in use. When, not if, it becomes corroded it can cut off the signal. This is not an uncommon occurrence that your repair man should be aware of.
Also, the Overdrive button becomes a mute switch when the Drive & Level controls are both turned down to zero. I believe we've saved at least a couple of Rumblers here some repair costs with this one.
It's true that it's not economically feasible to actually repair the electronic components of today's such inexpensive equipment, whether 7ender or any other brand. But, relatively few seem to want to pay for the very labor intensive (and therefore expensive), but very repairable, point-to-point wiring of the very high priced "boutique" amps.
You, and the rest of the Rumblers here, are all quite welcome, Len. That's what we do here.
Pull that chain! I can take it.

Price is only one selling point. But they gotta also "bring the goods" or they won't sell very many.
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