Chord Dave - Missing soundstage width

Regarding tracks:  

Liberty from Annette Askvik - This track is one of the most amazing I have hear from an imaging perspective.  Make sure your room is quiet and you should hear width and depth.  

Be Still My Beating Heart from Sting - another amazing track that if your speaker placement is correct should deliver incredible width and portions of this song should come from over your right shoulder.  There is a version on Fields of Gold that I use.  

Blackbird from Sarah McLachlan -  On Disk 2 of the Essential Sarah McLachlan.  This track is overall lovely but there are bells/glockenspiel that comes in from the left side in the middle of the track that should almost make your turn your head to the left if things are set up correctly.   

Martin, I have Primaluna Dialogue separates including HP amp and I have Tekton D.I.'s also.
I don't have a Dave but I have experienced a similar situation between my Metrum Acoustics Pavane and my Sonnet Morpheus DACs. ( Morphues is a continuation of Cee's Ruetenburgs R2R DACs when he owned Metrum )
Pavane has a wider sound stage when compared to Morpheus. However after a couple weeks of A/B ing the DACs after a 500hr burn in of the new Morpheus, I've come to realize the Morpheus has a more focused center image an taller deeper soundstage.
At this point it's a matter of personal prefference. My friends are split down the middle on who prefers Pavane vs Morpheus.
I will say this, switching to NOS Mullard LONG PLATES have had a nice affect on sound stage in the Primaluna.

John

12au7 long plates*

It is all about phase (when the signals from the left and right reach your ears) which is easily manipulated when making the recording. If one system has a different width then one is preserving the original phase better than the other i.e the other is shifting it more than the other., and the shift will probably be different at different frequencies since speaker crossovers are the largest contributor to this shifting.

Steve Swallow - Deconstructed "Running in the Family" (available on Tidal and Qobuz) opening bass line sounds like he is sitting next to me. It is so far outside the speakers and so diffuse it is difficult to listen to for some reason. My speakers have a single cap in line with the tweeter, a single inductor in line with the woofer, and the mid-horns run full range so about as minimal a phase shift as possible for a speaker.