Quote:
Originally Posted by solarrdadd
I'd be leary of those post you have links on. those are two post from the same person claiming that he "spoke" to a polk representative. the links i put up were from post site on the RTi 10 and from Crutchfield's site on those speakers. can you imagine the potential for lawsuits against polk for damages to speakers and receivers because people didn't know they were "really" 4 ohm speakers? that would have killed many receiver because most of them "can't" handle 4 ohm speakers and they almost all will tell you NOT to use 4 ohm speakers because they can't handle it.
I think the bottom line is read the literature that comes with the receiver and see if it says it supports 4 ohm speakers or not. go with what the literature says. the same would be true for speakers. RTi 10's have been on the market for years and this is the first i've ever heard of this "4 ohm" issue. short of saying it's not true, i'll just say it's incredibly far fetched. Oh and the other thing of "take the jumper off and that will solve the problem until you can get an amp" what the hell kinda advise is that? yeah, just power the high freq side til you get an amp then you can put the jumper back on and you'll be fine. that advise is what killed this for that so called revolation by the poster of that link you provided.
i feel secure that based on what the polk site put out on the spec's for the RTi 10 speakers and they are listed as 8ohms then i'm satisfied more so than that persons post. I think if this were true polk would have done a recall or mass notification to all registered users and on their site about this. I think we can put this to bed after your reply should you or anyone choose to.
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Solarrdadd, you're using very decent power (Emotiva power amp). You could drive a 2 ohm load stable just like I can, however the issue of the impedence dips repesented by some speakers is a real fact. Your setup wouldn't flinch at this - but an Onkyo 606 - running 7.1? Oh yeah, I think it would flinch. I don't believe the solution is taking off the jumpers. I think the OP should add power and look at his room positioning. It takes power to properly pressurize a room of that size (or extremely efficient speakers). I have 5 power amps that give me 11 possible channels of power (at apx 200 watts per channel - even more on some of the bridged ones). My room is roughly 15 ft wide by 19 ft long and 8 ft high, but I have openings to another room. The OP can't fill that entire space with sound, not with his current setup. That's why I'm suggesting reconfiguring the room and/or add power.

P.S. This comment is not ment to be argumentative. I'm just expressing my past experiences with audio - the OP needs dynamics - and the Onkyo can't supply it in that room - as currently configured, and I would go as far to say - with that speaker setup, its hungry

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