AVS Special Member
Join Date: May 2011
Location: Ft. Collins, CO
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It's not that the HTM61 sucks it just seems to have a narrower sweet spot. It may not even be noticeable to you. That being said, a single 685 would be superior. Also, if you do decide on the 600 series I would go with the 683s rather than 684s. In fact, I would prefer the 685s with a nice subwoofer to the 684s.
You have a decent budget. I agree with Brian. The CM series would be a better bet and you could pair your 5.0 with a Rythmik, HSU, or SVS research subwoofer.
There are also a lot of other great choices out there. If I had that budget I'd go with the Sierra Towers from Ascend Acoustics but that's just me. The aforementioned PSB T6 towers are a good choice. You might consider the KEF Q900s, Monitor series, or Salk Sound Towers as well just to name a few. You'd definitely save some cash in the process too.
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