How do I get the best soundstage?

The phono preamp is as important as the turntable itself. The cartridge is the last in the vinyl chains as far as importance. Of course you need a good cartridge. But Origin live says to spend 30% of budget on each, TT, Arm & Phono preamp and 10% on the cartridge. I believe this to be pretty much correct.

The speaker sure do make a difference also. They should be equidistant from the side walls and not too close to the back wall. Mine are about 3 1/2 ft. from the back wall to front baffle.

Speaker setup plays a big part. Do a search for Sumiko Masterset and give it a go, all it will cost is time.

Cartridge wise a Transfiguration isn’t a bad place to be but when setting up a unipivot arm measure VTF at record surface height, or if you can’t accept that it will measure higher than it plays and use your ears, just using the measurements for reference.

Something better than a project phonobox might be a good move, if the Pass has a built in MM stage consider a SUT but if it doesn’t there are some fine stages out there.

Volti keep saying their speakers are fun, are you having any?

Sell the Volti’s and get Ohm Walsh’s. 3-D room-filling sound from any listening position! I have a pair. An astonishing speaker! Nothing else will make as big a difference!

Speaker placement.