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Post by Decllan on Oct 12, 2012 19:36:40 GMT -5
According to the Unofficial XPR-5 FAQ
What is the rated power?
400 watts / channel (x5); all channels driven; into 8 Ohms.
600 watts / channel (x5); all channels driven; into 4 Ohms.
500 watts / channel (x2); two channels driven; into 8 Ohms.
750 watts / channel (x2); two channels driven; into 4 Ohms.
575 watts / channel (x1); one channel driven; into 8 Ohms.
1100 watts (1 .1 kW) / channel (x1); one channel driven; into 4 Ohms.
What's the rated power using the same chart above, for the XPA-5?
Thanks in advance!
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Post by jjmatrix on Oct 13, 2012 7:17:15 GMT -5
Interesting question, I hope someone from Emo can answer.
PS The power rating for XPR-5 are the "official" ones from the product page.
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LCSeminole
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Posts: 20,851
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Post by LCSeminole on Oct 13, 2012 7:27:52 GMT -5
According to the Unofficial XPR-5 FAQ
What is the rated power?
400 watts / channel (x5); all channels driven; into 8 Ohms.
600 watts / channel (x5); all channels driven; into 4 Ohms.
500 watts / channel (x2); two channels driven; into 8 Ohms.
750 watts / channel (x2); two channels driven; into 4 Ohms.
575 watts / channel (x1); one channel driven; into 8 Ohms.
1100 watts (1 .1 kW) / channel (x1); one channel driven; into 4 Ohms.What's the rated power using the same chart above, for the XP A-5? Thanks in advance! Your subject line asks for the rated power of an XP A-5. The specs that you've quoted look more like the XP R-5. For all of the Emotiva power amplifiers, just look at the respective product page on the Emotiva home site and there will be links for the manual as well as the Audio Precision testing results. The XPR-5, the Audio Precision measurements for 8 and 4 ohm loads are right here from the official Emotiva home site. emotiva.com/resources/media/xpr5/xpr5_8ohms.pdfemotiva.com/resources/media/xpr5/xpr5_4ohms.pdfThe XPA-5 results for the same Audio Precision testing results are right here: emotiva.com/resources/media/xpa5/xpa5_8ohm.pdfemotiva.com/resources/media/xpa5/xpa5_8ohm.pdf |
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Post by geebo on Oct 13, 2012 8:19:53 GMT -5
Power specs for amps before the XPR-5 have always been rated with all channels driven. They have not broken it down with fewer channels driven. So if you're looking for power output of the XPA-5 with, say, two channels driven, they've not been published.
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Post by Decllan on Oct 13, 2012 14:53:19 GMT -5
Fair enough, thank you so much for the replies.
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selkec
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Post by selkec on Oct 13, 2012 15:05:48 GMT -5
Power specs for amps before the XPR-5 have always been rated with all channels driven. They have not broken it down with fewer channels driven. So if you're looking for power output of the XPA-5 with, say, two channels driven, they've not been published. Not true geebo......when i bought my xpa3 and xpa5 they showed the power of 1, 2, and 3 channels driven  |
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selkec
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Post by selkec on Oct 13, 2012 15:06:55 GMT -5
If I think right, 2 channels was 275 watts into 8 ohms
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Post by Dark Ranger on Oct 13, 2012 15:22:23 GMT -5
According to the Unofficial XPR-5 FAQ
What is the rated power?
400 watts / channel (x5); all channels driven; into 8 Ohms.
600 watts / channel (x5); all channels driven; into 4 Ohms.
500 watts / channel (x2); two channels driven; into 8 Ohms.
750 watts / channel (x2); two channels driven; into 4 Ohms.
575 watts / channel (x1); one channel driven; into 8 Ohms.
1100 watts (1 .1 kW) / channel (x1); one channel driven; into 4 Ohms.What's the rated power using the same chart above, for the XPA-5? Thanks in advance! Hi dkehl, The XPA-5 product page has not shown the breakdown like this for a while. However, I was able to dig up a snapshot of the XPA-5 page from back in Feb 2009 when Emotiva listed the breakdown: ----------------------------------------------------------- 200 watts RMS/channel into 8 ohms, all channels driven 5 channels - 8 ohm = 200 watts per channel 4 channels - 8 ohm = 230 watts per channel 3 channels - 8 ohm = 250 watts per channel 2 channels - 8 ohm = 275 watts per channel 1 channel - 8 ohm = 300 watts per channel 4 ohm rating: 5 channels - 4 ohm = 350 watts per channel 4 channels - 4 ohm = 375 watts per channel 3 channels - 4 ohm = 400 watts per channel 2 channels - 4 ohm = 450 watts per channel 1 channel - 4 ohms = 500 watts per channel ----------------------------------------------------------- Source (it takes a few seconds to load) For those interested in the XPA-3 breakdown, here it is: ----------------------------------------------------------- 8 ohm rating: 3 channels - 8 ohm = 200 watts per channel 2 channels - 8 ohm = 250 watts per channel 1 channels - 8 ohm = 300 watts per channel 4 ohm rating: 3 channels - 4 ohm = 300 watts per channel 2 channels - 4 ohm = 400 watts per channel 1 channels - 4 ohm = 500 watts per channel ----------------------------------------------------------- Source (it takes a few seconds to load) |
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Post by roadrunner on Oct 13, 2012 15:37:46 GMT -5
Power specs for amps before the XPR-5 have always been rated with all channels driven. They have not broken it down with fewer channels driven. So if you're looking for power output of the XPA-5 with, say, two channels driven, they've not been published. Not true geebo......when i bought my xpa3 and xpa5 they showed the power of 1, 2, and 3 channels driven Selkec You and geebo are both correct. In the very early days Emotiva used to show the power output for all the combination of channels, but Lonnie found that there were individuals who would buy an XPA-5 with the intention of only powering 2-channels; and they would drive the amp at maximum levels far above what the amp what designed for. Then when the owner burned out the power module for those two channels they expected Emotiva to repair the amp under warranty. So to avoid having to deal with those idiots burning up their amps thru miss use Emotiva stopped showing all the power output combos. The XPA-5 can be used to drive just 2 or 3 channels at the rated output for all channels driven. In other words, you can drive any number of channels on the XPA-5 at 200 W into 8 Ohms or 300 W into 4 Ohms; but do NOT expect to drive just 2 channels at 400 W into 8 Ohm or 500 W into 4 Ohms. As usual, it is the misbehavior of just a few that spoil it for the rest of us. |
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Post by geebo on Oct 13, 2012 16:34:20 GMT -5
Wow! I never saw those so I guess I stand corrected. Thanks for posting.
RR. I had heard the XPA-5 could pump out more power than rated with fewer channels driven but never knew there were actually published numbers once upon a time...
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Post by Decllan on Oct 13, 2012 17:21:06 GMT -5
Awesome!
Is there anything that I should do to prevent driving the amp at max levels other than connecting the 2 JBL Studio 130 bookshelf speakers as rears?
I was afraid the differences of box vs planar speaker would somehow kill my new Emo gear! I'm new to separate components...
As it is, I don't listen very loud, between 30-45 according to the UMC-1. I find it too loud (small irregular shaped room: 14x12 at the widest) past 50 although I'm sitting fairly close to the speakers.
The other question becomes, does the XPA-2 give off less heat than the XPA-5 due to additional headroom when driving 2 speakers?
@ roadrunner:
Does that mean there might be idiots that will try to burn out the XPR-5 since the rated power has been broken down for it?
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Post by AudioHTIT on Oct 13, 2012 17:39:44 GMT -5
It's hard to believe that publishing more information about a piece of equipment would make it more likely people would abuse it. If it gets too loud and starts clipping and sounding distorted, turn it down.
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Post by roadrunner on Oct 13, 2012 18:02:02 GMT -5
Awesome! Is there anything that I should do to prevent driving the amp at max levels other than connecting the 2 JBL Studio 130 bookshelf speakers as rears? I was afraid the differences of box vs planar speaker would somehow kill my new Emo gear! I'm new to separate components... As it is, I don't listen very loud, between 30-45 according to the UMC-1. I find it too loud (small irregular shaped room: 14x12 at the widest) past 50 although I'm sitting fairly close to the speakers. The other question becomes, does the XPA-2 give off less heat than the XPA-5 due to additional headroom when driving 2 speakers? @ roadrunner: Does that mean there might be idiots that will try to burn out the XPR-5 since the rated power has been broken down for it? I can't tell how many speakers you have nor what brand/model number based on your post. Do own planar speakers in addition to the JBL bookshelf speakers? How many channels are you driving? Even without that info, it would be almost impossible for you to drive the XPA-5 beyond its safe range. In a room as small as yours you would have bleeding ears long before damaging your amp. As far as the XPR-5 is concerned, I doubt that even the idiots could damage that amp because it delivers such high power output to begin with. They would have to own very inefficient speakers and have a monstrous listening room to draw enough current to even approach the XPR-5's limitations. You aren't thinking about trying to see if you could drive the amp beyond its designed capacity, are you? ;D ;D ;D ;D ;D |
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Post by garbulky on Oct 13, 2012 19:56:50 GMT -5
As far as difference in volume levels between front and surround speakers the UMC-1 can be calibrated to adjust for that. But you wouldn't be doing any damage by using an overpowered amp.
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Post by Decllan on Oct 13, 2012 21:05:39 GMT -5
roadrunner: Sorry I thought maybe you could see my equipment from my signature although if you have signatures turned off that info wouldn't be available to you. My speakers are: Magnepan MG-12 & JBL Studio 130 bookshelf Emo gear: XPA-5 (in 30 day MBG window) & UMC-1 (this is a final sale item, so it's mine regardless of whether I like it or not, but I like it, so it's all good) Currently only driving the MG-12s. Again, I thought the differences in speaker types would either damage the XPA-5 or at least give a very strange listening experience. Might be worth a try. The XPA-5 isn't an Intel processor, I'm not trying to intentionally overclock it or damage the amp. After all, I hate to start a fire in the house &/or loose my hearing. The XPR-5 I can't even run, no dedicated 20 amp circuits in my home. My biggest issue is heat buildup. Even a watercooled pc gives off heat which is why I don't overclock anymore. Awesome! Is there anything that I should do to prevent driving the amp at max levels other than connecting the 2 JBL Studio 130 bookshelf speakers as rears? I was afraid the differences of box vs planar speaker would somehow kill my new Emo gear! I'm new to separate components... As it is, I don't listen very loud, between 30-45 according to the UMC-1. I find it too loud (small irregular shaped room: 14x12 at the widest) past 50 although I'm sitting fairly close to the speakers. The other question becomes, does the XPA-2 give off less heat than the XPA-5 due to additional headroom when driving 2 speakers? @ roadrunner: Does that mean there might be idiots that will try to burn out the XPR-5 since the rated power has been broken down for it? I can't tell how many speakers you have nor what brand/model number based on your post. Do own planar speakers in addition to the JBL bookshelf speakers? How many channels are you driving? Even without that info, it would be almost impossible for you to drive the XPA-5 beyond its safe range. In a room as small as yours you would have bleeding ears long before damaging your amp. As far as the XPR-5 is concerned, I doubt that even the idiots could damage that amp because it delivers such high power output to begin with. They would have to own very inefficient speakers and have a monstrous listening room to draw enough current to even approach the XPR-5's limitations. You aren't thinking about trying to see if you could drive the amp beyond its designed capacity, are you? ;D ;D ;D ;D ;D
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Post by roadrunner on Oct 13, 2012 21:46:52 GMT -5
dkehl
The UMC-1 will have no trouble calibrating the MG-12 and JBL 130 speakers. That is just part of the standard setup routine in the UMC-1 and most any modern HT processor. Do you have a Center Channel speaker? For HT movie soundtracks, the Center Channel Speaker is extremely important. About 70% of all the dialog go thru the center speaker. Don't skimp on getting the best Center Channel speaker you can afford. The XPA-5 will have no trouble driving you speakers to any volume level you could safely listen to.
The UMC-1 and the XPA-5 are an excellent match and will provide you with outstanding sound quality. I highly recommend that you study the videos linked on the bottom of the UMC-1 Product Page. They will give you a better understanding of how to use the UMC-1 and will make setting up your HT system easier to understand. Highly recommended. Enjoy your new toys.
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Post by The Mad Norseman on Oct 13, 2012 22:10:49 GMT -5
roadrunner typed:
"You and geebo are both correct. In the very early days Emotiva used to show the power output for all the combination of channels, but Lonnie found that there were individuals who would buy an XPA-5 with the intention of only powering 2-channels; and they would drive the amp at maximum levels far above what the amp what designed for. Then when the owner burned out the power module for those two channels they expected Emotiva to repair the amp under warranty.
So to avoid having to deal with those idiots burning up their amps thru miss use Emotiva stopped showing all the power output combos. The XPA-5 can be used to drive just 2 or 3 channels at the rated output for all channels driven. In other words, you can drive any number of channels on the XPA-5 at 200 W into 8 Ohms or 300 W into 4 Ohms; but do NOT expect to drive just 2 channels at 400 W into 8 Ohm or 500 W into 4 Ohms. As usual, it is the misbehavior of just a few that spoil it for the rest of us".
But this makes no sense, because I've read NUMEROUS threads on this forum where a poster has asked if there's any problem, or danger in using (say) an XPA-5 to drive only 2, 3, or 4 speakers, or an XPA-3 to drive just 1 or 2 - and the answer is ALWAYS a resounding "NO PROBLEM".
So if that was Lonnie's response, then I just don't understand I guess...because either the amp can drive less than the channels its designed for safely and without damage - or it can't.
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Post by AudioHTIT on Oct 13, 2012 22:58:51 GMT -5
I agree, Lonnie's comment doesn't make much sense, but I also don't think RoadRunner mentioned it for anyone to change their listening habits or amp usage, just a reason why they might not publish those specs.
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Post by garbulky on Oct 14, 2012 0:05:10 GMT -5
Lonnie was talking about people who are specifically buying the xpa-5 and running at near it's maximum capability way above it's normal five channel rating all the time. Now, amps shouold be designed to withstand this kind of stuff as IMO if I had 2 speakers but someday decided to upgrade, I would use it for jus tthat purpose. But it is what it is. It's not really meant to do 400X2 all the time through its amp channel blades that are really designed for 200X5
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Post by paintedklown on Oct 14, 2012 0:37:47 GMT -5
I think the issue with running the XPA-5 with only 2 channels going at max power was due to the heat sinks on each channel not being designed to dissipate the heat generated by doing just that.
At normal listening levels, you should have no issues, but I do believe that I had read somewhere on here that it was recommended to buy an amplifier with the number of channels that you are requiring.
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