I was recently motivated after reading a review in Hi-Fi World to purchase a (expensive) clock from Fidelity Audio for a Duet receiver I wasn't using. I wanted to see if I could improve it's performance. Currently I use TT3.0 on a Touch and am pretty happy with it's performance. I got the clock and installed it and am pleased with the improvement. The Duet now sounds much better (on a par with the Touch) and am considering doing further hardware mods to further improve it's performance.

What other mods would you recommend for the duet? Replacing some caps seams like the next step.