Maybe it depends on what you thing sounds 'good'.
Most AM operators would say 40 to 5000 Hz with low distortion and multi band processing sounds good.
Many use full broadcast setups, and many are broadcast engineers.
Some of the radios in use are actually better then old broadcast transmitters, class D and E rigs and the good sdr radios like the Anan and Flex radios that can transmit 20 Hz in a clean sine wave.
For me, I like audio from 20 to 3000 Hz without excessive low end boost and a nice rise around 1000 Hz,
and low distortion. I can not hear anything above 3000 Hz so that hifi stuff does nothing for me.
Many think the 7300 sounds thin and grungy on TX but it sounds ok to me.
Maybe you’re trying so hard to convince us and prove your point you’ve been trying to make about Icoms sounding like crap that you keep either missing the point, or not acknowledging the specifics I’ve already pointed out distinguishing the difference in effect I’ve clearly stated between the IC7610 and my prior IC7600. So let me put it maybe in a more laymen’s terms.
Icom 7600 sounded “good” on AM with a full 100hz (slightly lower) to 3000khz (slightly higher).
Icom 7610 sounding “bad” on AM with a low cut of around 200hz to 3000khz.
So forget about the old Icoms of 30 years ago, or the Icom’s of 20 years ago I was able to sound great on AM. Let’s cover why am I having this problem with a modern SDR rig that should sound as good if not better than my IC7600. Why, or why not and who’s fault would that be?
It surly isn’t my fault cause despite you second guessing my knowledge, or competence on audio you should find out first about my successes with audio. An audio engineer label has taught me not one thing. I’ve heard audio engineers get it all wrong on the air.
So do you have something to substantiate the reason why maybe there would be a problem and how to fix it, or at least a hypothetical?
That does not have anything to do with old radios, or basic common knowledge I and others already possess.
Thank you.