sc-09tx uber-receiver, some years ago. The bass and mids were absolutely intoxicating and to die for, while the highs were grating and painful. All coming from a pitch black background, no noise. It was definitely a good news, bad news sort of thing, but when it was good, it was REALLY good.
It became like a drug addiction, I desperately searched for something that reproduced that fantastic mid range and powerful bass and that dead silence, without the harsh treble it was known for.
I’m now using wyred 4 sound mono blocks, and they’re just okay. They don’t add anything untoward, but don’t have much in the way of punch or bass kick I like to hear. They're just not exciting, like the Pioneer.
I’m now looking for a replacement for my amps....much like the OP.