Hi,
I have had a CPM2600 new since May and it is still breaking in. It is extremely quiet with a silent black background. Build quality, fit and finish and industrial design are near the top - better than almost all of the competition at that price point, in my opinion (including the heavy, metal remote with metal buttons).
I would characterize the CPM2600 sound as neutral, revealing with high resolution. It's not as powerful and effortless as SPM600 power amp which I recently sold (despite similar 8 ohm power ratings) - I would say the CPM2600 leans more towards the SPM400 in sound and power delivery (I used to have that amp as well). But I thought the SPM400 was more detailed than the SPM600, if not as lush in the midrange.
If you're into the tube sound, the Chord might not make you happy. But if you prefer neutrality and have top notch partnering components (including cables), then the Chord could be the answer.
Hope this helps, EMAIL me if you need more information on this amp.
Steve