I'm currently using a Cary SLI80. Its great, but I'm always keeping my options open. I use Grado Sr60, SR325i, and Shure840 with it. All are 32ohm loads.
I've heard the Peachtree with other speakers and found it to be a thin sounding unit. It is on my radar again as the Zu's are more efficient than what I heard it paired with.
I use a Rega P5 and SqueezeboxTouch>PS Audio DLIII.
I'm debating the Peachtree as a preamp/DAC/headphone amp, and getting a tube amp for speaker duty.