It's loudspeakers and amp, you already have it figured out.
Soundstage depth how to improve? Shootout
Yes, soundstage depth behind the speakers, how can we improve this, and what equipment is most important for this?
Deeper speakers have more sound depth?
Toe-in speakers makes it worse?
Has tube quality something to do with it?
Cables not, that is a fact!
Combination/match preamp/amp?
Distance speakers from backwall have impact, that is also a fact!
Before I had a unison research sinfonia integrated(2×ecc82+2×ecc83 +4×6550) and the depth was much better, the depth behind the speakers was about 6 to 8 foot behind the speakers by estimate.
Now I have a Coincident statement line stage mk2(2×101D) with triode corporation trx-m300(2×310A+1×274B+1×300B’s) amps, and it is maybe half that??
The difference is almost 20k$.
Shoot me, I don’t know....
Speakers: living voice obx-rw2
Digi: bryston bda2 + bdp2