Klipsch RP-600M & Klipsch R-12SW Sub Or Focal JM Lab-Cobalt 806 & Focal JM Lab SW 800 Sub?

What sound characteristics are you looking for that the Klipsch isn't giving you? The RP600M is a fun speaker albeit somewhat colored in its presentation. In this price range I prefer the Wharfedale Diamond 12.2. I owned both of these speakers and sold them off. I regret selling the Wharfedales.

Music Direct currently has an open box special in black for $479.

Have a look at this Steve Gutttenberg review where he compares them with Klipsch RP600M, B&W 607 S2, and Monitor Bronze 100's. Perhaps you'll find some of this information useful.  

If it were me, I'd also look at upgrading your Marantz receiver to a better integrated amplifier. 

Hey audionoobie! Thanks for your recommendations and Youtube link. Well, it’s rather strange to explain it but, I feel with the Klipsch, they are "hiding" something from me. I would like more midrange and more in the highs department. As far as the Bass, I know that it’s a 6.5 incher. I mean, you can only get so much out of a 6.5 midbass woofer. I have the Klipsch 12" subwoofer to handle the lows.

I like the review on between the Whaferdale Vs the Klipsch. When you said that you regret selling the Whaferdales, that says a lot. You must have loved those speakers.

I’m still searching and looking around reviews and recommendations. The one thing about the Whaferdales that I wish were different is the fact that the sensitivty is 86.5db. Rather low from the 96.5db (give or take) from the Klipsch.

The reason that I got the Marantz NR1711 is because an older 5.1 Yamaha receiver clunked out after many years of service and I caught the Marantz for $500 (at the time that I bought it, it was at $1,200 and the guy that was selling was downsizing because he lost his job and what not and was selling a lot of stuff.) I’m pretty happy with it but then again, I’m a huge Yamaha fan.

What intergraded amplifier would recommend for a 2.1 setup like mine if I were to get the Whaferdales?

Thanks!

@tampabaycenter I think the midrange is more fleshed out with the Wharfedale's and the overall presentation leans more toward neutral. 

I ran them with a Belles Aria 75 watt integrated amp which can had for around $1500 used. I didn't think the Wharfedales were difficult to drive but I have a small room and wasn't looking for dance club level volumes. 

I also think the fit and finish of the Wharefedales is a couple notches better than the Klipsch. They are very solid and heavy for their size. 

I'm not trying to sway you in any way but maybe put these on your audition list. 

The Klispch sensitivity is actually 85db-ish. Klispch uses in room measurements to rate their efficiency which is more or less lying  

“The sensitivity is 85.2dB @ 2.83v/1m, despite Klipsch rating this speaker at 96dB (using in-room, half-space conditions)”

https://www.erinsaudiocorner.com/loudspeakers/klipsch_rp_600m_i/