This past week I was lucky enough to be gifted a Melos SHA-1 Headphone Amp/Pre-Amplifier. One of the best headphone amps ever made! Just hooked it up to make sure it works. Until I find a better setup it will in my PC audio setup. Currently using it to drive my Beyerdnyamic DT 880s and using it as a pre-amp in conjunction with the N22 Desktop Amplifier paired with the Audio Engine P4 bookshelf speakers. Any ideas for getting the most out of the SHA-1? Willing to spend a little bit of money if necessary.