Klipsch ProMedia v.2 - 400 vs. Cambridge SoundWorks DTT 2500

DTT 2500's
The sound quality overall in the 2500's is outstanding. They are certainly not lacking clarity in any of the satellites. Each satellite delivers clear mid and high frequencies, plenty of volume considering they are only 7 Watts each. The subwoofer produces clean sounding bass, adequate for the sound field these speakers deliver.

Klipsch
The sound quality here is just superb. The bass will knock your socks off in comparison. I think the mids and highs are even more clear than the Cambridge due to a couple of things: they separate the mids and highs by using a horn for highs and a 3" driver for the mids; and, the fact that there is so much power to play with means you don't have to drive the electronics so hard to get ear-blistering levels. The subwoofer is, of course, powerful. But beyond the power, the bass is punchier here and clear due to the twin 6.5" drivers and the 6th order enclosure.

Decision
I feel that Klipsch deserves first place. The sound quality is better. But keep in mind, the Klipsch are also a much more high-powered system, which does help in clarity at higher volumes. Cambridge is certainly no slouch here, though. Their quality is still amongst the best out there.

Functionality

DTT 2500's
Cambridge went all out with functionality here. You have everything you need to set up these speakers in a room. In the box, there are some very nice stands for the rears, wall mounts cable markers and more. Beyond the mounting hardware, though, the separate amplifier is a definite plus; having the separate receiver right next to you with all the controls you really need is just great. Technically, the Cambridge have a great setup for inputs: Dolby Digital/SPDIF, Analog Front/Rear, and Digital DIN. That is exactly what the doctor ordered for flexibility. Yet, I can hear the headphone guys now ;) (where is the headphone jack?!?).

Klipsch
Klipsch went mainstream here for functionality. There is no mounting hardware included, just rubber feet for the speakers. Technically, you have one choice for inputs, Analog Front/Rear mini-jack connectors. For controlling the levels, you have the common satellite with main volume, surround volume and subwoofer level.