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Official Emotiva XPA-5 Owners Thread - Page 57

post #1681 of 1944
The Denon puts out 125 w/ch, so the additional 75 w/ch will get you maybe 2 dB more spl (takes a doubling of power to gain 3 dB, which isn't a lot). The speakers aren't particularly sensitive but 88 isn't bad they should get quite loud with the Denon with headroom to spare; they're 8 ohm rated so your current Denon should be doing just fine. Doubt that an outboard amp is worth the expense....and like I said, if you don't use the power now, why would you need more? Even less important if you have a subwoofer to take a load off the current amps....

Now if you have money to burn go ahead and get the amp, just doubt it will change anything for you....until you want to really crank it up then maybe. Don't get me wrong, I have more outboard amps than I can use around here and mostly they're not needed.....
post #1682 of 1944
Would the 125 watts be for 2 channels driven only on the Denon?
post #1683 of 1944
I believe Denon specs that 125 w/ch as 20hz-20khz at .05% per channel with 7 discrete amps thus implying it's an all channels driven rating but it isn't clearly stated....where are you going with that question? You plan to crank each speaker equally with all channels driven? What movie/music does that anyways? You ever use an spl calculator like this http://myhometheater.homestead.com/splcalculator.html ?
post #1684 of 1944
Maybe I'm just confused. I just figured I was not taking advantage of the Studio 100's.
post #1685 of 1944
Maybe you've read too many things in audio magazines or something, I dunno. Not a lot of magic in an amp except for the power you need to cleanly achieve the spl you require. I think you are fine as is. What sub do you have? There's a place to perhaps spend some $$.

PS Looked back a page....the XV15 should be fine unless you have a super big room. Much of the power needed from your Denon would go to drive the lower frequencies, so using a sub has already lightened the load on your Denon.....
post #1686 of 1944
Hi,

The system is in a living room that opens into the kitchen and dining space. So a pretty large open space. I am contemplating getting a 2nd XV-15 sub since the Denon will eq 2 subs.
post #1687 of 1944
Quote:
Originally Posted by Kevin_Roy View Post

Hi Everyone,

I just recently purchased a Denon AVR-X4000 receiver. I am running the following speakers,, Paradigm Studio 100v3, Studio CC-570 center, and some Monoprice In-ceiling speakers. I never turn it up to reference level due to a little one in the house. I do wonder if my 3 front speakers could benefit from the extra power of the XPA-5. Any insight would be appreciated.

Thanks,

Kevin

In short, no.

Those speakers have a sensitivity rating of 89dBs anechoic. To achieve reference at 1m will require all of 32W run full range. At 2m you will need 64W and 128W at 3m. With typical room gain you will get at least 3dBs so that reduces the power requirement at 3m to 64W. The Denon X4000 will have no problem putting out 64W/CH with all channels driven. You already stated you don't listen at reference so even if you are down 3dBs from reference your power requirements is only 32W/CH. You also stated that you don't run your speakers full range and cross them over to a sub so your power requirements have again been reduced dramatically since the lower frequencies are what uses more than the lion's share of the power. 32W from the Denon will be no different than 32W from the XPA-5 or 32W from the XPR-1 or 32W from any 10,000W, $1,000,000 amp that is properly designed. You can spend $900 on an XPA-5 and get no audible benefit or you can spend that $900 on something that will. I would go with another sub or room treatments.
post #1688 of 1944
Thanks to everyone for their insight. I will look into getting a 2nd PSA XV-15 sub instead.

Thanks,

Kevin
post #1689 of 1944
sorry couldn't find an official emotiva thread. i have read that there are new amps that run high bias class a up to 65w before switching. what models are these amps and what's the lowest wattage available?
also i see that the emotiva are high current. How much are we talking?
post #1690 of 1944
XPA-1L

35 W class A

www.emotiva.com has descriptions and specs

I seriously doubt you could discern an audible difference based on the amount of bias current in a blind test.
post #1691 of 1944
thanks don. need one of them to run my headphones
post #1692 of 1944
Sure you need that much power for headphones? There are a lot of dedicated headphone amps, and smaller amps... Headphones usually only need a few watts tops. My monitor 'phones are rated for 2 W max.
post #1693 of 1944
i want to be able to get my headphones to thx reference volumes. i've been told on the beats forum that i can do this
post #1694 of 1944
Quote:
Originally Posted by bthrb4u View Post

i want to be able to get my headphones to thx reference volumes. i've been told on the beats forum that i can do this
How inefficent are your headphones that they would need more then 2 watts to do that?
post #1695 of 1944
i mean to use them as speakers and have my room hit thx reference levels. i was told i would probably need a subwoofer though
post #1696 of 1944
i'm just pullin your legs guys sorry !
post #1697 of 1944
Terrific. Thanks for wasting my time. Remind me to never respond to any of your posts.
post #1698 of 1944
I actually did need the information your provided me with but i kept it going after the headphone comment because i figured everyone knew i was joking. i apologize. was just trying to give a good laugh
post #1699 of 1944
thank you
post #1700 of 1944
Quote:
Originally Posted by brendelac View Post

So based on what you people have told me in the past few days, how does the XPA-5 and Emotiva amps in general get so many rave reviews?

I just returned my xpa-5, really wanted to love it, but the reality was that it sounded a bit thin and lacking any punch compared to this old 2-Chan Luxman M-117 amp I have, and the difference was not subtle at all. I don't really consider myself as having a terribly discerning ear, but it was night and day for me. Had a fee friends agree with me, so I sent it back. I am hoping they discover something was wrong with it so I can try another Emo amp some day with confidence. I went out found another Luxman M-117 on Craig's List to power the center channel and an old Adcom I had laying around to power the rear channels, and I think it sounds fantastic.
post #1701 of 1944
Quote:
Originally Posted by Jhanken View Post

I just returned my xpa-5, really wanted to love it, but the reality was that it sounded a bit thin and lacking any punch compared to this old 2-Chan Luxman M-117 amp I have, and the difference was not subtle at all. I don't really consider myself as having a terribly discerning ear, but it was night and day for me. Had a fee friends agree with me, so I sent it back. I am hoping they discover something was wrong with it so I can try another Emo amp some day with confidence. I went out found another Luxman M-117 on Craig's List to power the center channel and an old Adcom I had laying around to power the rear channels, and I think it sounds fantastic.
It would be interesting to have a selection of amps to try out back-to-back. Many people out there say that all amplifiers sound the same. Having little experience with amps myself, what I was hearing with the XPA-5 was exactly what I was hearing with my Denon AVR, but slightly fuller and that is why I don't see the value in the $750 that I spent on it.
post #1702 of 1944
there are lots of people that know this. they probably had their laughs.
post #1703 of 1944
Quote:
Originally Posted by Jhanken View Post
 
Quote:
Originally Posted by brendelac View Post

So based on what you people have told me in the past few days, how does the XPA-5 and Emotiva amps in general get so many rave reviews?

I just returned my xpa-5, really wanted to love it, but the reality was that it sounded a bit thin and lacking any punch compared to this old 2-Chan Luxman M-117 amp I have, and the difference was not subtle at all. I don't really consider myself as having a terribly discerning ear, but it was night and day for me. Had a fee friends agree with me, so I sent it back. I am hoping they discover something was wrong with it so I can try another Emo amp some day with confidence. I went out found another Luxman M-117 on Craig's List to power the center channel and an old Adcom I had laying around to power the rear channels, and I think it sounds fantastic.

 

That would be a sighted test, with no level matching to ±0.1dB and no instantaneous switching of units?  If so, I’d expect you to hear significant differences. Problem is, the differences aren't a result of differences between the amps, but differences due to the severely flawed 'test' procedure employed.

 

Properly designed, modern Solid State amps (which includes all of the amps we are discussing in this thread),  working within their design parameters and not driven into clipping, have been proven numerous times, in properly conducted blind ABX tests, to be sonically indistinguishable from one another.

post #1704 of 1944
Quote:
Originally Posted by Jhanken View Post

Quote:
Originally Posted by brendelac View Post

So based on what you people have told me in the past few days, how does the XPA-5 and Emotiva amps in general get so many rave reviews?

I just returned my xpa-5, really wanted to love it, but the reality was that it sounded a bit thin and lacking any punch compared to this old 2-Chan Luxman M-117 amp I have, and the difference was not subtle at all. I don't really consider myself as having a terribly discerning ear, but it was night and day for me. Had a fee friends agree with me, so I sent it back. I am hoping they discover something was wrong with it so I can try another Emo amp some day with confidence. I went out found another Luxman M-117 on Craig's List to power the center channel and an old Adcom I had laying around to power the rear channels, and I think it sounds fantastic.

I suppose you can probably hear gnats humping at 10 yards too. rolleyes.gif
post #1705 of 1944
Quote:
Originally Posted by 67jason View Post
 
Quote:
Originally Posted by Jhanken View Post
 
Quote:
Originally Posted by brendelac View Post

So based on what you people have told me in the past few days, how does the XPA-5 and Emotiva amps in general get so many rave reviews?

I just returned my xpa-5, really wanted to love it, but the reality was that it sounded a bit thin and lacking any punch compared to this old 2-Chan Luxman M-117 amp I have, and the difference was not subtle at all. I don't really consider myself as having a terribly discerning ear, but it was night and day for me. Had a fee friends agree with me, so I sent it back. I am hoping they discover something was wrong with it so I can try another Emo amp some day with confidence. I went out found another Luxman M-117 on Craig's List to power the center channel and an old Adcom I had laying around to power the rear channels, and I think it sounds fantastic.

I suppose you can probably hear gnats humping at 10 yards too. rolleyes.gif

 

LOL. Usually so can the wife/girlfriend/buddies too :)  Night and day :)

post #1706 of 1944
Quote:
Originally Posted by kbarnes701 View Post

LOL. Usually so can the wife/girlfriend/buddies too smile.gif  Night and day smile.gif

Keith,

Without a doubt and they can usually do that by just walking through the room while music is playing wink.gif.

Bill
post #1707 of 1944
IIRC Luxman was going for more of a "tube" sound and so it is possible they achieved that goal. If so the differences described are not surprising. One can argue the "properly designed" aspect if that is the case, natch...
post #1708 of 1944
Quote:
Originally Posted by kbarnes701 View Post

Properly designed, modern Solid State amps (which includes all of the amps we are discussing in this thread), working within their design parameters and not driven into clipping, have been proven numerous times, in properly conducted blind ABX tests, to be sonically indistinguishable from one another.

If there is any published research on this topic, I would love to read it. I could easily have believed what you are saying to be true a month ago, but given what I heard recently, and again I claim no real expertise, I now find it very hard to believe. Plus, even if true, I suspect there would be so much sound-shaping required to make the XPA-5 sound like the Luxman that it wouldn't really be practical. I don't own an old-style equalizer and typically defeat any tone controls. What matters most is how music sounds in your space when you turn the contraptions on, right?

Still hope the folks at Emotiva find that something was wrong with the amplifier, they promised to bench-test it when it comes back in. They are super nice and one thing I can say is that you can buy from them with confidence that you will have a fair opportunity to listen and decide for yourself. The return process was super easy, and I will still consider their stuff. I currently am using a USP-1 and really like it, even the MM phono stage.

Another feature I like about Emotiva is the pretty-much troll-free forum they have put together.
post #1709 of 1944
Quote:
Originally Posted by Bill Mac View Post
 
Quote:
Originally Posted by kbarnes701 View Post

LOL. Usually so can the wife/girlfriend/buddies too smile.gif  Night and day smile.gif

Keith,

Without a doubt and they can usually do that by just walking through the room while music is playing wink.gif.

Bill

 

Oh yes. And then they call it a "test" and say it proves something or other about the sound they are hearing. I noticed recently that my dog now cocks his head in a slightly different way since I changed my BD player. What more proof can anyone need that the player sounds different to my old one?  :)

post #1710 of 1944
Quote:
Originally Posted by DonH50 View Post

IIRC Luxman was going for more of a "tube" sound and so it is possible they achieved that goal. If so the differences described are not surprising. One can argue the "properly designed" aspect if that is the case, natch...

 

Yes, I just made a similar remark in my reply to someone else. But, as you suggest, to my mind that is an amp that has not been 'properly designed' because, IMO, an amp should not function as a tone control - all it should do is amplify. And decently made amps (which can also be quite inexpensive) have been able to do that for decades as I know you know. 

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