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[ar surround]

Thanks!
Do you agree with the message above, that I won't get much benefit based on my current setup?

AVR = Denon 6700H, Amp = Emotiva XPA 6 Gen 3 (driving fronts, center, wides). Fronts = Klipsch RF 7 III, Center RC 64 III, Wides = 600 MII, Surrounds = 250S, Rears = 600M, Heights = PRO 180 RPC, SWs 1 = 1600SW, SW2 = 1400SW. Would it make much difference if I add the Emotiva XPA 9 Gen 3 and I changed the AVR for the Anthem AVM 70?

Alan, your Emotiva XPA 6 Gen 3 with all 6 channels driven, it is rated at 225 watts RMS per channel at 8 ohms with 0.1% THD. You are driving only 5 speakers with this amp, so you are likely getting a bit more than that. The Klipsch RF 7 III has a sensitivity of 100 db at 1 meter with power handling of 250 watts maximum. I really don't think that any larger amplifier is going to give you better performance. The Klipsches only need 64 watts for 118 dB sound pressure level, which is deafening. Doubling your amplifier output to 450 wpc will give you only 3 dB SPL more headroom.

As a comparison, my AR9 front speakers have a sensitivity of only 87 dB. I am driving them with 400 wpc RMS amps. My ears give out well before the amps and the speakers.

 

[DrKlahn]

Alan, your Emotiva XPA 6 Gen 3 with all 6 channels driven, it is rated at 225 watts RMS per channel at 8 ohms with 0.1% THD. You are driving only 5 speakers with this amp, so you are likely getting a bit more than that. The Klipsch RF 7 III has a sensitivity of 100 db at 1 meter with power handling of 250 watts maximum. I really don't think that any larger amplifier is going to give you better performance. The Klipsches only need 64 watts for 118 dB sound pressure level, which is deafening. Doubling your amplifier output to 450 wpc will give you only 3 dB SPL more headroom.

As a comparison, my AR9 front speakers have a sensitivity of only 87 dB. I am driving them with 400 wpc RMS amps. My ears give out well before the amps and the speakers.

I agree, the high sensitivity of the Klipsch speakers is unlikely to need a lot of amplification. Unless there are some extreme impedance swings (which I don't think is a problem with Klipsch) your current amp is more than enough and honestly a decent receiver is probably fine.

The argument for separates in that use case would be for better processing (which I feel is questionable with how good processing is overall today) or features. If you have a local brick and mortar shop they may allow you to demo a unit in your home to compare.