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Definitely something going on that doesn't make sense here - input impedance of the mic input for that amp appears to be 1k, with the mic at 300ohm. Yes it's mismatched, but not enough to cause zero signal.
I'm guessing cable - can you borrow a standard xlr and try an adaptor, or get another xlrl to 1/4”?
Thank you for the advice and for pointing out the input impedance of both the mic and mic input on the amp .... I have better understanding of that now. Your guess was correct in that it was the cable ... a standard XLR to TS jack did the trick! 😊
Fantastic news, glad you got it sorted
Ok so impedance does not seem to be the issue, then. I'm gonna have to buy a xlr-ts mic cable or adapter tomorrow. Strangely, with all my cords and adapters, I don't have THAT one, of course! Plenty of XLRs, just nothing to convert to the TS jack! Hopefully tomorrow, Aroma or the seller can get back to me with some idea, as well.
Not seeing a lot of specs for those products on line but I suspect you may need the preamp, which is not the same as the transformer. Are you certain the mic in is a TRS jack? It seems like the kind of product that may only have a don't see any specifics about the mic preamp on the Aroma amp, which makes me suspicious. How did you hook the zoom recorder to the amp input? Was it a line out? If so and that configuration worked, I'd say that further points toward the preamp.
I might need a Mic Impedance Transformer to get 'power'/volume to the dynamic mic.
Just erase that detail, its wrong one way pr another and windmills do not work that way.
The mic-in on the amp is a TS jack (most likely), but my cord is a TRS ... shouldn't matter though? Yes, I used the line-out on my Zoom, with a 3.5mm TRS to 6.35mm TRS adapter.
The Aroma website provides little to no info on the amp, but here is a local music store that has some specs. And this is the mic - https://www.behringer.com/product.html?modelCode=P0E7P
Here are the apparent specs of the input jacks on the amp
If the amp is a TS input, it is unbalanced and needs a XLR to TS cable. It does matter going from balanced to unbalanced signal. Double check me on that though with. Multimeter or pinout diagram or something.
Hi and thanks for the advice! You are correct that:
It does matter going from balanced to unbalanced signal.
A standard mic cable has done the trick and I've been practicing all evening. Much appreciation for the help! 😎
Glad you were able to get it sorted out!
It does matter going from balanced to unbalanced signal.
That's fair. I'm going to get a standard XLR-TS mic cable tomorrow and try that out. 🤞