Your most indispensable "tweak"?

+ 1bdp and to properly integrate the subwoofer to include the right crossover point and gain.

Power cables, interconnects and speaker cables.  Without them, I can’t get my system to work.

What did it for me more than anything else was a proper equipment stand (Sound Anchors) custom built to accommodate my anti-vibration platforms with my preamp on top of one, and the turntable on top of the other. The stand is in turn seated on a set of Aurios Pro bearings (unfortunately nla).

This combination allows the system to play at any volume and remain relaxed- even at 110dB (according to my Radio Shack sound pressure level meter).

High Fidelity Cable- any of their wave guides plug ins

@68pete what did these do for your system?

@needfreestuff I finally dialed in my sub to a crossover and gain level that opened things up so much. Not an easy task.