Klipsch RP-600M II

Relatively speaking, RP 600M Mk I has certain limitations despite of rave reviews from HR. The high ends are bright, edgy and forward and the bass is a bit bloated. The unbalanced, overly presence of highs and lows covers up the midrange. Fatique sets in pretty easily after a short time period of listening. On contrary, Mk II is much improved. Tonal balance is right, although the treble is still on a forward side but not offensive. Bass is a bit lighter but also cleaner and, hence, Mk II may need a sub. for movie watching. I would say the Mk II is worth the increase in price IF you like that type of sound signature.

@lanx0003 

Relatively speaking, RP 600M Mk I has certain limitations despite of rave reviews from HR. The high ends are bright, edgy and forward and the bass is a bit bloated. The unbalanced, overly presence of highs and lows covers up the midrange. Fatique sets in pretty easily after a short time period of listening. On contrary, Mk II is much improved. Tonal balance is right, although the treble is still on a forward side but not offensive. Bass is a bit lighter but also cleaner and, hence, Mk II may need a sub. for movie watching. I would say the Mk II is worth the increase in price IF you like that type of sound signature.

It's almost as if someone at Klipsch watched Danny Ritchie's video for his upgrade kit for the MKI,

They literally corrected everything Danny found wrong with the MKI, for their MKII iteration.

The spec. on the two-way bookshelf speakers like Sierra 2 looks impressive (34hz-27khz) but be cautioned that, with a ribbon tweeter, its mid-range frequency response might be compromised.  Ascend is certainly doing a better job.  This similar limitation is shared by GoldenEar BRX.

They’ve received many good reviews...I found the Triangle Borea 03 and Elac Uni-Fi 2.0 to be equally as good but different, and also some Dali’s but don’t remember model......the Klipsch is regularly available as "open box" from authorized dealers for about $450 including shipping...and if it matters, most reviews seem to find the Klipsch much less sensitive/efficient than advertised...fortunately I found a pair of Salk Monitors at a great price and didn’t have to decide, though it’s a much more expensive speaker...