Hi Ben,
You may want to take a look at your power delivery. It's the most overlooked and most important part of an audio set up. Ideally one should budgeted 25-30% percent towards cabling and power delivery. When components do not get enough power they are not operating at their fullest potential. 50% at best. Stock chords will not suffice.
Adding a good power delivery system to your system is like adding another component / or power amp. What a good power delivery set up will add to your system is - what you are seeking -
holographic
sound stage, texture, detail, clean tight bass. Enhanced Imagery along your systems entire frequency range.
Its the most un-sexy, unseen part of the system. It took me a long time to appreciate this fact. I had to be shown - But once I embraced it I never looked back. If you weigh the amount you have put into the changes you have made to your system vs the amount you have invested in your power delivery you may find its at least worth investigating the investment.
There are those who do not believe in this aspect, which is why I implore you to make your own analysis. Its not going to be cheap, but can be strategically achieved over time.
No matter what you decide good luck.
