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Post by aymen007 on Apr 1, 2015 15:19:32 GMT -5
hello
i am newbie in this forum and i have 2 Speakers Klipsch RF 7 II i need buy an emotiva power amp i need you whats is best for me
CH 70% & HI-FI 30%
Emotiva XPA 2
Emotiva XPA 5
now i have AVR Marantz SR7009 and i use 2 klipsch for front and 3 small speakers satellite " Harman Kardon HKTS 11 " surround and center after i buy other speakers kit 5.1 or 7.1
RC-64 II Centre – Quad 6.5” Drivers, 99dB / 200W RMS
RS-62 II Surround, Pair - Dual 6.5” Drivers, 97db / 150W RMS
SW-310 Subwoofer - 10” Front Firing, 500W - 1200W Peak
whats is the best now for me i buy xpa 2 i use big front in amp and other small speakers in avr system and if i shop other speakers klipsch my system will be 7.1 i buy xpa 5 or i buy xpa 5 now for all time me i need good power and good quality sound
" big sorry for my bad language english because i speak only french "
Klipsch RF7 MKII
FREQUENCY RESPONSE: 30Hz-24KHz ± 3dB
POWER HANDLING: 250W RMS / 1000W Peak
SENSITIVITY: 101dB @ 2.83V / 1m
NOMINAL IMPEDANCE: 8 ohms compatible
CROSSOVER FREQUENCY: 1200Hz
HIGH FREQUENCY DRIVERS: 1.75" (4.45cm) Titanium diaphragm compression driver
HIGH FREQUENCY HORN: 8" square 90° x 60° Tractrix® Horn
LOW FREQUENCY DRIVERS: Two 10" (25.4cm) Cerametallic™ cone woofers
ENCLOSURE TYPE: Bass-reflex via dual rear-firing ports
INPUTS: Dual binding posts / bi-wire / bi-amp
thank you
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Post by macromicroman on Apr 1, 2015 15:50:20 GMT -5
I run my RF-7ii, RC-64, and RS-52iis all from an XPA-5. Have had this set-up for about 2.5 years without any problems. I run a set of RB-6iis with an XPA-200. You of course could get an XPA-2 for the fronts and run the rest from the XPA-5. I'm not sure the extra power from the XPA-2 over the XPA-5 is worth it with the very efficient RF-7iis.
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Deleted
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Post by Deleted on Apr 1, 2015 16:01:53 GMT -5
I would start with the xpa5 that way all your speakers get to experience the wonders of clean amplification. And really if you use more than 200 watts on those klipsch you'll be too deaf to hear the extra 1.5db that the xpa2 offers anyway.  |
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Post by teaman on Apr 1, 2015 16:02:59 GMT -5
I would start with the xpa5 that way all your speakers get to experience the wonders of clean amplification. And really if you use more than 200 watts on those klipsch you'll be too deaf to hear the extra 1.5db that the xpa2 offers anyway. Huh?..........What you say sonny?  ?? |
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Deleted
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Post by Deleted on Apr 1, 2015 16:05:15 GMT -5
I would start with the xpa5 that way all your speakers get to experience the wonders of clean amplification. And really if you use more than 200 watts on those klipsch you'll be too deaf to hear the extra 1.5db that the xpa2 offers anyway. Huh?..........What you say sonny? ?? Yeah I know... says the guy running 500 watts to 98db jtr's. hahaha |
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Post by sonicseeker on Apr 1, 2015 16:44:23 GMT -5
I run my RF-7ii, RC-64, and RS-52iis all from an XPA-5. Have had this set-up for about 2.5 years without any problems. I run a set of RB-6iis with an XPA-200. You of course could get an XPA-2 for the fronts and run the rest from the XPA-5. I'm not sure the extra power from the XPA-2 over the XPA-5 is worth it with the very efficient RF-7iis. This would be Ideal and I agree the XPA-2 would be overkill and probably not benefit you in any way. I owned the RF-7II's and the XPA-5 with these will make you very happy. |
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Post by ceptorman on Apr 1, 2015 19:50:52 GMT -5
I would start with the xpa5 that way all your speakers get to experience the wonders of clean amplification. And really if you use more than 200 watts on those klipsch you'll be too deaf to hear the extra 1.5db that the xpa2 offers anyway. ^^This^^ The RF7ll/RC64ll is an excellent front three, with the surround speakers getting proper wattage also, this would be an awesome HT. |
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Post by aymen007 on Apr 2, 2015 5:01:57 GMT -5
Hello
thank you very much for quite your answer and just help I have some questions on the power of amplifiers emotiva I saw in several subjects on the Internet speaks on a problem, it is that for example, an amplifier went out them of power 150w when connect all the exits the power falls almost 50 % or more I want to know for emotiva xp in 2 250w by channel and emotiva xp has 5 200w by channel, I want to know when I connect every surrounding walls and use all the exits this problem is on amplifiers emotiva or not also if there is this problems I want to know little near in xp a2 and xp has 5 how much falls the power when use it all the channels at the same time thank you very much
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Post by wizardofoz on Apr 2, 2015 5:44:13 GMT -5
The xpa-5 will push out 200w into 5 channels all day long and not be a problem...but with such sensitive speakers you will be unlikely to have to push it anywhere near that.
Remember your speakers are rated at 101db at 1w at 1m away...90db is already pretty loud. 101 well that's almost 2 times as loud iirc. The xpa-5 will hardly get out of class A or break a sweat with those speakers.
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Post by Chuck Elliot on Apr 2, 2015 6:10:43 GMT -5
Most here know my opinion on high power amps and high efficiency loudspeakers, but let me reiterate.
I currently use a UPA-5 and UPA-2 in my HT. 5 of the 7 speakers are Klipsch Heresy Models.
It is not a matter of wattage, but rather quality when evaluating an amplifier.
I ran a pair of Klipsch Cornwalls for 30 years with a huge number of different amplifiers. This included everything from a 13W triode unit to a 150W SAE to the last amp in that setup which was a 60W Bryston 2BLP. Hell, I DJed parties with a 50W SAE.
Through all this. I came up with my own magic formula for the Cornwall’s power needs which was that about 20W was needed for normal listening levels in the house.
OK, let’s take that as a baseline. The chart below shows speaker efficiency on the left and amp power on the right. Each step lowers the speaker efficiency by -3 dB and doubles the amp power to maintain the “magic” formula above.
dB W
100 20
97 40
94 80
91 160
88 320
85 640
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Post by dvcdude on Apr 2, 2015 8:20:36 GMT -5
I am a Klipsch guy and i understand that the RF-7's are extremely sensitive, but i have found that they are also power hungry. My setup differs slightly since i have an RC-7 and rear channels. I have tried several receivers at varying power and i believe if you want to hear those speakers open up and sound their best, you have to feed the beasts. Give them 200 wpc and you will never regret it!
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Post by sonicseeker on Apr 2, 2015 8:35:13 GMT -5
I am a Klipsch guy and i understand that the RF-7's are extremely sensitive, but i have found that they are also power hungry. My setup differs slightly since i have an RC-7 and rear channels. I have tried several receivers at varying power and i believe if you want to hear those speakers open up and sound their best, you have to feed the beasts. Give them 200 wpc and you will never regret it! This is what I found also. I ran three fronts and two sides with six ksps-6 surrounds and the RF-7II's sounded o.k. with everything from tubes on up but the best is when I had 200 plus hooked to them. |
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Post by pedrocols on Apr 2, 2015 9:05:34 GMT -5
Just get the XPR-5 and over with....
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,222 
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Post by novisnick on Apr 2, 2015 9:28:13 GMT -5
Has anyone missed me???  OK folks, here it is,,,,,,,,,, I've owned a lesser set of Klipsch and have powered them with almost everything from a set of a AAA batteries to XPR-1s ,,,,,,,,,,,,now Wait for it!!!!!!!, guess which I preferred?
OK,,,,,I don't have all day!!!!!!
Ive found, in my humble opinion,,,,,,,,,,,that having more power will give you man handling, rag doll, shaking control of each driver in your speaker cabinets!! It's that simple.
I do do respect everyone else's ideas and opinions but for me in my room blah!, blah!, blah!!
this was by far the most detailed and dynamic sound I've gotten from any speaker I've owned, but the Klipsch speakers became BEASTS when given " The Juice "
have I ever maxed out my amps? Simply put,,,,,,NO! I'm sure I never came close! Did the headroom and reserve power make a difference, I say simply,,,,,,,YES!
I now wait for the love to flow in my direction.
Peace!
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Post by aymen007 on Apr 2, 2015 10:22:46 GMT -5
Just get the XPR-5 and over with.... Thank you my problem is i live in Europe and i need buy XPR 5 or XPA 7 and this 2 items not shipped out of USA  |
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Post by ceptorman on Apr 2, 2015 12:32:07 GMT -5
Just get the XPR-5 and over with.... Thank you my problem is i live in Europe and i need buy XPR 5 or XPA 7 and this 2 items not shipped out of USA I'm sure something can be arranged about shipping. |
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Post by aymen007 on Apr 2, 2015 12:47:53 GMT -5
i am very happy if somebody can shipped xpa 7 for me in europe
please tell me if not dangerous i use xpa 7 with klipsch rf7 mkii
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Post by pallpoul on Apr 2, 2015 12:53:32 GMT -5
i am very happy if somebody can shipped xpa 7 for me in europe please tell me if not dangerous i use xp a 7 7 with klipsch rf7 mkii is the xpr-5 dangerous,...I don't know, If Mr. Putin would take it lightly, ? Is moving nuclear war heads around frowned upon by the Russians? Shipping XPR-5 to Europe is like a declaration of war, and all hell will break LOOSE,..  |
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,222
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Post by novisnick on Apr 2, 2015 12:58:35 GMT -5
i am very happy if somebody can shipped xpa 7 for me in europe please tell me if not dangerous i use xpa 7 with klipsch rf7 mkii The only danger of using large amounts of power is enjoyment beyond belief!!!!  |
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Post by aymen007 on Apr 2, 2015 14:39:58 GMT -5
very good please tell me how i can use this reshipped i need buy XPA 7
thank you
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