Where do you live, I wanna hear that amp and those speakers!!! I’m in Plainfield, NJ, 07062
I might try a graphic equalizer, to ascertain if either boosting the mids a speck, or lowering the bass a bit would get a preferable sound out of those speakers. People tend to try this and that with the controls, too much messing about. I had one, found just a touch here or a slight touch there was enough.
this one has a 32hz band, better when trying to tame bass, many equalizers start higher, i.e. 60hz lowest band.
used one, inexpensive, hear results, go from there. you can learn a lot for $45.
independent controls for L and R help if room surfaces, etc vary which is often the case.
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My speakers have 2 L-pads, I can adjust the mid horn relative to the woofer, then adjust the tweeter horn to that mix. Old days, they all came with level controls. Speakers didn’t know what space they would end up in. Adjust for your room, move to another space, re-adjust them for that space, or your preffered sound, or your individual hearing
I use an inexpensive SPL meter, combined with a Test CD with many 1/3 octave bands. After that, adjust for preference, your hearing, ... by ear.
Meter on tripod, ear level, listening position.
$20.
https://www.discogs.com/release/7290000-Various-Amazing-Bytes
tracks 9 to 38
expensive, I bet I could find you a copy.