Saxophone is one of the 'tough' insruments to reproduce!
Like Piano, violin.
They IMO are the 'big three' instruments tough to reproduce IF you have an ear attuned to that particular instrument.
I do not think it is your amps? It probably is your speakers are more at fault. I would look for old (1960's ish) speakers with a BIG woofer (12" to 15") and at least a 6" midrange, 8" mid would be better. (with pulp paper cones)
This is just my silly opinion.
The room may also have a bit to do with it.
Like Piano, violin.
They IMO are the 'big three' instruments tough to reproduce IF you have an ear attuned to that particular instrument.
I do not think it is your amps? It probably is your speakers are more at fault. I would look for old (1960's ish) speakers with a BIG woofer (12" to 15") and at least a 6" midrange, 8" mid would be better. (with pulp paper cones)
This is just my silly opinion.
The room may also have a bit to do with it.

