So does the 009 put "warm, lush, romantic" into the listing vocabulary? Because those characteristics seem to be minimized in most descriptions of the Stax sound that I have read.
If not and the 009 emphasis is more on transparency and detail, would the 007 be a more lush romantic sound or would it be some other Stax model?
The SR-009 is going to give you whatever is in the recording, so unless the recording itself is warm, lush, and romantic, then no. Alternatively you can pair it with a more romantic amp like the Aristaeus / HEV90 or try tube rolling with the Electra or something along those lines.
However if you want "warm, lush, romantic" from a stat, the Sennheiser HE90 is the reigning champ.
For me, bass per se was never a problem with stats. People would say they lacked bass, but I for one couldn't hear what they were on about. I realized the problem, for me, was an overall lack of weight to the sound. Bass impact ("slam") is part of it, but I found it wasn't just bass; it was the overall sense of solidity and grounding, the sense of mass that their sound carried.
I'm speaking in the past tense here, because I discovered this was largely a function of the rest of the audio chain. Stats by their very nature need a lot of juice. The SR-007 actually has plenty of bass, it's just on an inadequate amp it's going to sound bloated and lack weight, like being hit over the head with a bed comforter. With a better amp, the bass tightens up considerably and the overall sound gains depth and solidity. It's an appreciable difference for me.
I realize there's a tremendous amount of suspicion with regard to just how much of an impact amps play, but when it comes to stats that impact is huge in my experience just because of the nature of the drivers.
Of course, with the exception of the HeAudio Jade, stats are never going to be on the level of something like the LCD-3 when it comes to weightiness. Given my preferences these days, that's a good thing for me personally.