Received the BHK preamp 3 days ago, been running it constantly.
Initially it opened up the soundstage. Vocals are like the person is in the room. I could “see” James Taylor’s fingers moving on the strings. The musical instruments position in space became more localized and took on a more 3d image with instruments moving back behind the equipment. Cymbals sounded like they should, not a congested crash. Bass extended a little more but became more detailed.
Very nice! I love the outriggers, quite jealous of your amp, glad to see you are spinning some Natalie Merchant, and wow it looks like you have lots of room for more equipment! Curious about the preamp too, as I run digital straight to my amp and have yet to be convinced that a preamp is the right next upgrade (or even second or third on the list) for my system.