I used a Mk2 empeg here as well, with capacitor fix applied, same as with you. Listening to both versions on the same empeg, playing through a Pioneer receiver to Bose 301 Mk2 speakers.

Also ran it through the same empeg, but connected to SWMBO's $8 Class-D amp powering her Yamaha loudspeakers.

Both versions sound identical/great to us, including/especially around the solo voice at/around the 18sec mark as you indicated.

But your musician's ears are undoubted better than ours, and/or perhaps your player, or amp, has issues?