Consider supporting a small company (with nice folks that answer the phone and respond to emails) based and making their cables in-house in Tyler, Texas ... Hart Audio Cables. I use their balanced TC-3: 4.4mm Pentaconn to Dual 3-pin XLR to connect the Zen DAC Sigv2 to Schiit Freya+ and it sounds...
Please share specifically what “appropriate adapter cables for utilizing the balanced outputs” you purchased. There are outfits selling adapters that claim to turn unbalanced to balanced, but rarely is this actually the case. Also take it to your local shop and try the balanced headphone output...
I see that this is the now dedicated thread for this topic, so I will compile my suggestions from other threads here.
If you want to stick with active analog (so no AVR) bass management, Emotiva has a number of options (pardon if these have already been mentioned):
Preamp: BasX PT1 Stereo...
If you want to stick with active analog bass management, Emotiva has a number of options:
Preamp: BasX PT1 Stereo Preamplifier/DAC/Tuner ($399) with high-pass filtered line-level main outs and low-pass filtered single/mono sub preout -- but crossover is fixed at 90 Hz.
Integrated amp: BasX TA1...
Fight Club for sure ... and Christopher Nolan's Interstellar (with a soundtrack by Hans Zimmer, including some tremendous pipe organ recorded at the Temple Church in London).