Vega211R Posted July 9, 2011 Share Posted July 9, 2011 I'm fixin to upgrade to two pair's of the RF-7II's My receiver is a Yamaha RX-V2600, which pushes 130W x7, RMS. I still like to listen to it loud in 7.1 with BluRay, and 7 channel and 2 channel stereo music. I think I should have more power for the RF-7II's for the best sound. What would be the best way to obtain this? Can you hook up a amp to what I have or something like that?? Thanks for any help. Quote Link to comment Share on other sites More sharing options...
gagelle Posted July 9, 2011 Share Posted July 9, 2011 I've never owned RF7s but from the spec sheet, the RF7lls appear to be very efficient and should sound great with your receiver. How does it sound with your current setup? An RF7 owner would probably have more knowledge about their need for power than I do. To add an amp, you need preamp out jacks on your receiver. I added a 200 watt 3 channel Emotiva this way. But my receiver was only rated 70 watts with two channels driven. It just didn't sound good pushing 5 speakers. Not only the power, but the sound quality fell off when pushing multiple speakers. I didn't do enough research before I bought. Quote Link to comment Share on other sites More sharing options...
willland Posted July 9, 2011 Share Posted July 9, 2011 Vega211R, Welcome to the forum. First, nice choice with the RF-7II's. I have heard RF-7's and RF-83's, and own RF-63's, if the RF-7II's possess some of what all these do well, then you are in for a wonderland of sound. Your Yamaha RX-V2600 has a very nice amp section and should drive your RF-7II's just fine for 2-channel even a bit loud if you must. In 7.1 mode the power will fall off a bit(30% or so)) and you may not be hearing the full potential of your setup. What other speakers are in your system and do you have a subwoofer? I think I should have more power for the RF-7II's for the best sound. What would be the best way to obtain this? Can you hook up a amp to what I have or something like that?? If you plan on adding the matching center channel(RC-64II) then my first suggestion would be a 3-channel amp to power your front soundstage. This will ensure the best total match of your front three speakers(unless you added another RF-7II instead of RC-64II). Your Yamaha will have no trouble driving your surround speakers. If a 5 or 7 channel amp is within your budget, then just go that route instead and you will have all bases covered. If 2-channel music is your main focus and you want to keep the costs down some, a 2-channel amp is the way to go. Any of these type of amps suggested are available new if budget allows or used if you want best bang for the buck. Parasound, NAD, B&K, Rotel, Outlaw Audio, Acurus, Aragon are a few of the companies that build very quality amps and can be found used for a fraction of the cost of new. Emotiva is a great choice to consider if you want to buy new and want to stay under $1000.00. If new, this is the way to get the most for your $$$: http://www.emotiva.com/xpa5.shtm Bill Quote Link to comment Share on other sites More sharing options...
artto Posted July 9, 2011 Share Posted July 9, 2011 Don't forget the basic math. Doubling the available power only increases the maximum output by 3dB. It takes TEN TIMES the power to "sound" twice as loud. RF7 are one of the more efficient speakers on the market for home use. IMO the best way to increase sound output is to move to more efficient speakers and you've already done that (or are going to). I wouldn't worry about the extra power until you have the RF7s in place and see how that works. Quote Link to comment Share on other sites More sharing options...
CHASLS2 Posted July 9, 2011 Share Posted July 9, 2011 Just adding a UPA2 to my RF7's gave them a new life. So much cleaner and crisper now. Quote Link to comment Share on other sites More sharing options...
BluBitRates Posted July 9, 2011 Share Posted July 9, 2011 I agree dont be swayed that an amplifier may only have 125 watts while your receiver has 130. An amplifier will get the job done better. Me and Chas are both enjoying 125wpc on our rf-7 Quote Link to comment Share on other sites More sharing options...
Boomzilla Posted July 9, 2011 Share Posted July 9, 2011 More power = Cleaner power = Better sound. Not always, but certainly often true. Best sound I had was using a 350 WPC McIntosh Mc252 into a pair of La Scalas. Of the AV receivers, Yamaha certainly has a (justified in my opinion) reputation for having excellent sound at their price points. Your money, your choice - consider borrowing a friend's higher powered stereo amp and listen. Your ears will tell you if the additional cost is justified for you. Happy Listening! Boomzilla Quote Link to comment Share on other sites More sharing options...
djk Posted July 10, 2011 Share Posted July 10, 2011 What does the system have as far as subs? If you cut off the RF7s below 100hz and use big enough subs the system will play about twice as loud. You must be able to cut the bass going to the mains. Quote Link to comment Share on other sites More sharing options...
TxEvo8 Posted July 20, 2011 Share Posted July 20, 2011 I have RF7/RC7/RF5/SVS PB13 Ultra combo powered by an Emo XPA5, and I think that it sounds incredible. Can you say headroom? LOL I would certainly reccommend an external amp, especially if you have a large space to fill. Quote Link to comment Share on other sites More sharing options...
CHASLS2 Posted July 20, 2011 Share Posted July 20, 2011 I use a Emotiva UPA2 to drive both of my RF7's and my Pioneer 1120k AVR drives the RC7 and RS7's. They really rock. Quote Link to comment Share on other sites More sharing options...
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