My understanding is that Peachtree Audio's expertise is particularly strong in the digital domain... I am uncertain how well their amplifier stages will work with Klipschorns.
A brief description of the Peachtree iDecco is as below (taken from Absolute Sound review):
A hybrid solid-state/vacuum tube (6N1P) preamplifier with a Class A output buffer stage.
A Class A headphone amplifier (when the tube circuit is enabled).
A multi-input (USB, S/PDIF, TosLink, iPod) 96kHz/24-bit upsampling DAC with a solid-state output stage.
A digital iPod dock with, of course, a built-in integrated amplifier.
A 40Wpc MOSFET-powered, solid-state integrated amplifier (actually 30 Wpc into 8 ohms)
As I am starting from scratch with this system, this seemed like a good way to get started with good performance and low cost. I can always use it as a preamp stage for better amplifiers down the road.
What are some of the power amplifiers with which folks are having great success?
This forum seems like a truly excellent source of information.