Receiver/Amp Recommendations for Klipsch RF-7 II System - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 21 Old 03-29-2012, 12:49 PM - Thread Starter
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I'm going to have a complete RF-7 II speaker system soon including:

(2) RF-7 II Floorstanding Speakers:
NOMINAL IMPEDANCE: 8 ohms compatible
POWER HANDLING: 250W RMS / 1000W Peak
SENSITIVITY: 101dB @ 2.83V / 1m

(1) RC-64 II Center:
NOMINAL IMPEDANCE: 8 ohms compatible
POWER HANDLING: 200W RMS / 800W Peak
SENSITIVITY: 99dB @ 2.83V / 1m

(2) RS-62 II
POWER HANDLING: 150W RMS / 600W Peak
SENSITIVITY: 97dB @ 2.83V / 1m
WEIGHT: 22.7lbs (10.3kg)

(1)SW-115 Sub:
AMPLIFIER POWER: 400 watts continuous @ <2% THD / Dynamic Power*: 800 watts
VOLTAGE: 100-120V / 220-240V~50/60Hz 4A (Auto-voltage switching) with 1 Watt standby

I was hoping to get some recommendations for a receiver/amp combo or receiver to sufficiently power these.

I was thinking perhaps a Marantz AV7005/MM7055 combo. Would this be a good choice?
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post #2 of 21 Old 03-29-2012, 04:03 PM
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Given the (very) high sensitivity of your speakers, you don't need much power at all (fraction of a watt per channel to take your head off). Pick any competent receiver that has suitable features for your tastes and be done with it; something like the Denon 4311 or Yamaha A2000 will be no problem at all (and drive probably just as much power as the 7055). If you like Marantz, the SR7005 would be fine. You can really get away with even less expensive componentry than that, if you'd like.
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post #3 of 21 Old 03-29-2012, 08:00 PM - Thread Starter
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Thanks for the assistance!

These speakers are pretty powerful though, right?

Out of curiosity, what kind of set up WOULD warrant an amp such as the XPA-5, etc?
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post #4 of 21 Old 03-30-2012, 03:07 PM
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Quote:
Originally Posted by RocknRolla View Post

Thanks for the assistance!

These speakers are pretty powerful though, right?

Out of curiosity, what kind of set up WOULD warrant an amp such as the XPA-5, etc?

The speakers you've picked are very sensitive, which means they get very loud with very little input power. That means you don't need as much amplifier grunt.

Honestly I'm not really sold on a 200wpc amplifier - a quality AVR can give you 100wpc (and 3 dB is nothing to write home about, even 6 dB is not a lot to write home about), and 1000wpc is expensive and most speakers can't survive it. Where larger amplifiers tend to make sense though, as a general rule, is with insensitive speakers (some of the "audiophile" models that are 83 or 85 dB/W), very large rooms/spaces (but again, 3 dB is nothing to write home about), or speakers that have very low impedance dips (which doesn't require a powerful amplifier, it just requires an amplifier that can deliver enough current; something like the XPA-5 can, many receivers cannot).

Your speakers don't fit into that, even if your room is large-ish, because they're so sensitive. 1wpc input into those mains is going to be loud enough to cause hearing damage, and easily exceed reference level, unless you're sitting quite a ways back (like 20 ft).

Have some reading:
http://www.physics.mcgill.ca/~guymoo.../lecture11.pdf
http://www.physics.mcgill.ca/~guymoo.../lecture13.pdf
http://myhometheater.homestead.com/splcalculator.html
http://audiokarma.org/forums/showthread.php?t=58829
http://www.innerfidelity.com/content/loud-music-sucks
http://www.osha.gov/pls/oshaweb/owad...ards&p_id=9735
http://www.ccohs.ca/oshanswers/phys_..._auditory.html
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post #5 of 21 Old 07-05-2012, 06:31 PM
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I have the marantz sr7005 and the rf7 ll and rf64ll center, great combo! The rf 7 ll's just keep getting better, I only have about 20 hours on them, just got them yesterday:D
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post #6 of 21 Old 08-29-2012, 08:32 AM
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I have a XPA3 that I plan on running my RF-7's and RC-64 with. Will that be too much power for the speakers?
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post #7 of 21 Old 08-29-2012, 09:06 AM
 
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Originally Posted by bermise View Post

I have a XPA3 that I plan on running my RF-7's and RC-64 with. Will that be too much power for the speakers?

The RF-7 II are rated 250w continuous, with peak at 1000w and the RC-64 II are rated 200w with peak of 800w and the XPA-3 is rated 200w continuous. You're good.

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post #8 of 21 Old 08-29-2012, 09:10 AM
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The RF-7 II are rated 250w continuous, with peak at 1000w and the RC-64 II are rated 200w with peak of 800w and the SPA-3 is rated 200w continuous. You're good.

Good to know, thanks for the reply. After reading about some RF-7 hissing/static issues, I got a little nervous!
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post #9 of 21 Old 08-29-2012, 09:18 AM
 
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Quote:
Originally Posted by RocknRolla View Post

I was hoping to get some recommendations for a receiver/amp combo or receiver to sufficiently power these.

I was thinking perhaps a Marantz AV7005/MM7055 combo. Would this be a good choice?

I'm running an SR5007 into a set of Klipsch, Epic, CF-3's which are the older brother to the RF-7 II's. The CF-3's have a stated sensitivity of 100dB 1w/m, 250w continuous/1000w peak. Yes, your stated combination would be a good match but my opinion, price wise, you'd be equally well served getting a basic receiver like a Marantz SR5007 with a full set of 7.1 pre-outs and an Emotiva XPA-5. I would recommend using the money saved to buy a second sub.

As to what choice in an AVR, it depends on the size of the room and what your stated listening levels are going be. Are you going be listening to what one might consider to be "NORMAL" loud listening levels or are you trying to reach THX "reference" listening levels?

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post #10 of 21 Old 08-29-2012, 09:18 AM
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Quote:
Originally Posted by bermise View Post

Good to know, thanks for the reply. After reading about some RF-7 hissing/static issues, I got a little nervous!

You still may have some hissing/static issues, but it isn't the RF-7s or that you are overpowering them with the XPA-3.
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post #11 of 21 Old 08-29-2012, 06:03 PM
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Originally Posted by Zen Traveler View Post

You still may have some hissing/static issues, but it isn't the RF-7s or that you are overpowering them with the XPA-3.

I know, I have read about others with these problems and I hope I do not come across the hissing. I will find out next week when the speakers arrive.
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post #12 of 21 Old 10-22-2013, 04:50 PM
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Ok i got a good question i own 80 watt onlyo receiver.It has not pr out's it's a basic receiver.i had it for about wow since 2008.maybe even 2007.I use to own bose .Now i am a audio lover for the most part.Hell i wont play a movie with out surroudn sound.And not even abluray lol.What i would like to know is this will 80 watt's be ok for my RF-7 II and RC-64 II and RS-62 II.My quess is no i have a feeling i might blow up the horn loaded tweeter.I mean that is what the guy on klipsch told me .I just want to get more answer's from other people like your self.Can u let me know or anyone can someone help me.
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post #13 of 21 Old 10-22-2013, 04:52 PM
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U can fix that hissing with a power panamax condisinor.There not much it all depends on which one u get.Look into the 5300 from panamax or the 5100.
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post #14 of 21 Old 10-22-2013, 09:59 PM
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I use a Pioneer Elite avr for my RF 7 system. I have a Yamaha M 80 and Carver M 400 for the mains and center respectively. As others have said you may or may not need any external amplification. With music, even playing very loud, you will rarely exceed 40 watt. Movies in a HT setup will require more than 40 watts. I have seen the meter on my main go as high as 180 watt at reference level will is not a normal enjoyable level. My Pioneer avr can swing around 270 watts for movie dynamic. I may not need my amp but, they are for keeps.

The nice thing about the Pioneer/Yamaha/Carver combo is that it is dead quiet with a nice black floor for music.
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post #15 of 21 Old 12-10-2015, 08:28 PM
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I am wondering if it would be worth upgrading from Onkyo A-9050 to A-9070, 75w per channel vs 100w p/ch at 8 ohms. I originally purchased the 9050 considering how sensitive the RF7-IIs are, the price difference is substantial 9070 ix 4x the price of 9050.
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post #16 of 21 Old 12-10-2015, 09:36 PM
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How about 8160

Sent from my Nexus 6 using Tapatalk
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post #17 of 21 Old 12-10-2015, 09:51 PM
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Pretty much anything of decent quality will work. Buy a receiver with the features you want or need (number of inputs/legacy inputs, room correction system, pre outs if you need 'em but you won't, Atmos, etc). Those speakers are very easy to drive so power is not an issue. The current AVR favorite at The Wirecutter is the Denon AVR-S710W which goes for about $450. Seriously, you don't need a major AVR or pre-pro/power amp to drive these suckers -- a 10 watt power amp would do the trick.

Theory is a great place, everything works in theory.

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post #18 of 21 Old 12-11-2015, 07:09 AM
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Quote:
Originally Posted by Amol A View Post
I am wondering if it would be worth upgrading from Onkyo A-9050 to A-9070, 75w per channel vs 100w p/ch at 8 ohms. I originally purchased the 9050 considering how sensitive the RF7-IIs are, the price difference is substantial 9070 ix 4x the price of 9050.


A recent finding for me: My 125wpc HK3700 crapped the bed last week. I had it paired with a 200WPC emotiva xpa-3 to run my 7ii's and 64ii. I had my old HK2600 in my garage only 65WPC.


I swapped the 3700 out and the 2600 in. No pre outs on the 2600 so had to run with just the 2600 no Emotiva.


I was surpised at how well the 2600 drove the ii system. With 135 less available wpc than previous set up, and about $1500 less worth of gear hooked up. It sounds great.


The 25 additonal wpc you are looking at is null. The 135wpc I had available was null.


I just sold my emotiva yesterday(great amp by the way), I was chasing a pipe dream of more power better sound. The beauty of Klipsch is it's not needed, only wanted by some. I needed to try it to find out myself as the amplification fights ge ugly on here. You may want to try it, up to you. If you try it don't spend that money for 25 additional wpc, go big, but the difference is minimal (with Klipsch anyways)


Hope this helps

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Klipsch RF-7's II
Klipsch RC-64 II
Klipsch RB-51 II
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Klipsch R-112SW (x2)
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post #19 of 21 Old 12-11-2015, 08:06 AM
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Originally Posted by dmb12679 View Post
A recent finding for me: My 125wpc HK3700 crapped the bed last week. I had it paired with a 200WPC emotiva xpa-3 to run my 7ii's and 64ii. I had my old HK2600 in my garage only 65WPC.


I swapped the 3700 out and the 2600 in. No pre outs on the 2600 so had to run with just the 2600 no Emotiva.


I was surpised at how well the 2600 drove the ii system. With 135 less available wpc than previous set up, and about $1500 less worth of gear hooked up. It sounds great.


The 25 additonal wpc you are looking at is null. The 135wpc I had available was null.


I just sold my emotiva yesterday(great amp by the way), I was chasing a pipe dream of more power better sound. The beauty of Klipsch is it's not needed, only wanted by some. I needed to try it to find out myself as the amplification fights ge ugly on here. You may want to try it, up to you. If you try it don't spend that money for 25 additional wpc, go big, but the difference is minimal (with Klipsch anyways)


Hope this helps
the main concern is the bass normally, when you reduce power. So you didn't notice much difference when it comes to bass? the mid bass punch etc? i assume you use a sub for the lower frequencies. The rf7ii have a steep dip in impedence at around 70hz i think which can be covered with a sub,when using an avr.
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post #20 of 21 Old 12-11-2015, 10:19 AM
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Originally Posted by hammer of thor View Post
the main concern is the bass normally, when you reduce power. So you didn't notice much difference when it comes to bass? the mid bass punch etc? i assume you use a sub for the lower frequencies. The rf7ii have a steep dip in impedence at around 70hz i think which can be covered with a sub,when using an avr.


I did not notice much a difference on the low end. I think the large room they are in may be a factor in my experience with taking the power away and not noticing a big drop in bass. I'm in a 18'x20'x18' living room open on two sides and a second story cat walk.


I run my 7ii's as large + sub


I run what I call an avereage sub, most would say it's not enough, but the output in my room sounds great to me, I'm not a bass head however.


I think my room size plays a large role in my situation. Thanks for making me think about it It would be interesting to see in an average size room to see if and/or how much it drops. I'm sure a 14x14 standard ceiling could very well have a different result.


I moved my 82ii's to my master bedroom when I got my 7ii's and they never sounded better and had that punch(running of another 60w HK) Which adds to my thoughts on room size.


With a sub I would say any avr can do the job, and do it very well. the 25wpc additional he speaks of is almost irrelivant in his case.

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Klipsch RF-7's II
Klipsch RC-64 II
Klipsch RB-51 II
Klipsch RS-42 II
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post #21 of 21 Old 12-13-2015, 01:09 PM
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Originally Posted by dmb12679 View Post
A recent finding for me: My 125wpc HK3700 crapped the bed last week. I had it paired with a 200WPC emotiva xpa-3 to run my 7ii's and 64ii. I had my old HK2600 in my garage only 65WPC.


I swapped the 3700 out and the 2600 in. No pre outs on the 2600 so had to run with just the 2600 no Emotiva.


I was surpised at how well the 2600 drove the ii system. With 135 less available wpc than previous set up, and about $1500 less worth of gear hooked up. It sounds great.


The 25 additonal wpc you are looking at is null. The 135wpc I had available was null.


I just sold my emotiva yesterday(great amp by the way), I was chasing a pipe dream of more power better sound. The beauty of Klipsch is it's not needed, only wanted by some. I needed to try it to find out myself as the amplification fights ge ugly on here. You may want to try it, up to you. If you try it don't spend that money for 25 additional wpc, go big, but the difference is minimal (with Klipsch anyways)


Hope this helps
Thanks a lot ! I will stick with the 9050 then, don't see a point of spending 4x the money.
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