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Post by 45acpauto on Mar 2, 2010 14:49:38 GMT -5
I have heard of emo for a while now and have been quite curious about them. I work in a hifi store in the chicagoland area, so I have heard lots and lots of amps. To name a few, B&K,McIntosh, Krell, NAD, Musical Fidelity, Bryston, Anthem, Classe, Marsh, McCormack, Levinson, ATI, Lexicon, the list goes on. So my cousin says to me he want an amp, I have nuthing in his price range so I tell him about the emotiva stuff. Long story short, he bought a xpa5. He is having a problem with the 12v trigger out of his integra dtr5.8 a/v rec as pre amp to emo xpa5. When at low power its fine if you turn up the volume the emo amp shuts down. If you take the trigger out the amp works fine. I have tested his a/v rec at my store and it is fine, anyone have a idea???
I was also able to test it out against a old b&k av5000 series2 amp. What a fun test, long story short. The emo had way more attack and bass. It was also way bright one the top end compaired to the b&k. The b&k was much smoother, airy, and a way better sound stage.
I must say, emo has a winner with the xpa5. At its price point I know of nuthing that is as good. The build quality fit and finish is second to none. The attack and slam this thing has for hometheater is awesome!!!!!!! For music, I would look somewhere else.
Hats off to emo.
Ralph
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hemster
Global Moderator 
Particle Manufacturer
...still listening... still watching
Posts: 51,920
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Post by hemster on Mar 2, 2010 19:47:31 GMT -5
Ralph, thanks for posting your review and glad you/your cousin are enjoying the amp.
What type of cable are you using for the trigger? AFAIK, the receiver should be putting out a constant voltage (5-12V) and current regardless of the volume setting.
I agree the XPA-5 is an awesome amp. I love mine! For music, have you tried the XPA-2 or the XPA-1 monos?
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Pauly
Emo VIPs 
Posts: 5,237
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Post by Pauly on Mar 2, 2010 23:22:53 GMT -5
Yeah, everybody says that the XPA-1 is in a different league.
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Post by scoobygt68 on Mar 8, 2010 11:42:38 GMT -5
Bought a XPA-5 last week and hooked it up... now Im getting a humm/buzz from each of my speakers that are on the amp, front/center/rear. I was told over at AVS that it could be a ground loop issue... ok means little to nothing to me but I was advised to check if this was the problem by moving aroudn my cables to keep the AMP power cable away from the other cabes. I attempted to to this but the power cable inevidtably is close to some other oiwer cables as they all go into the same outlet. After moving the cables around I am still getting the humm/buzz, granted the xpa-5 cbale is still close to other power cables. Any suggestions?
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topcat
Emo VIPs
A Dream Come True
Posts: 532
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Post by topcat on Mar 8, 2010 14:11:04 GMT -5
Bought a XPA-5 last week and hooked it up... now Im getting a humm/buzz from each of my speakers that are on the amp, front/center/rear. I was told over at AVS that it could be a ground loop issue... ok means little to nothing to me but I was advised to check if this was the problem by moving aroudn my cables to keep the AMP power cable away from the other cabes. I attempted to to this but the power cable inevidtably is close to some other oiwer cables as they all go into the same outlet. After moving the cables around I am still getting the humm/buzz, granted the xpa-5 cbale is still close to other power cables. Any suggestions? What was meant by (keep the Amp power cable away from the other cables) was the keep power cables away from you non-power cables. If the power cables must cross non-power cables they should do so at 90 degrees. Thomas |
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Post by indian on Mar 9, 2010 13:18:48 GMT -5
was having same prob as i just got my XPA-5 2 weeks ago. struggled a bit with moving cables around but eventually tried changing out my cheap RCA stereo cables with heavy duty monster component cables. this is only temporary but made me realize that i need to go ahead and fork over the dough to get x-series cables from emotiva. i think the insulation of the heavy duty cables made the difference as i can physically walk up to my fronts and hear less hum than my surrounds, which are still using the cheapo rca cables.
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Post by honk on Mar 9, 2010 14:04:33 GMT -5
Try it with XLR/RCA cables (the cheap ones are O.K.)
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Post by 45acpauto on Mar 9, 2010 16:49:33 GMT -5
Try it with XLR/RCA cables (the cheap ones are O.K.) Huh? If cheap ones are ok, than why is he having issues? Dude, buy good RCA cables. They will only make your system better. Good luck. |
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Post by scoobygt68 on Mar 10, 2010 7:51:10 GMT -5
I spent quite a while last night unhooking all my equipment on my rack and resorting everything to allow the most separation between my XPA-5 amp power cable and the, the speaker wires and the interconnects. The verdict ...... with just the XPA-5, and my Yamaha 3800 receiver on I heard very little humm/buzz/noise in the speakers. So I assume this means that the problem doesnt start with the amp. I then tried plugging in my Xbox360 and bingo the speakers started making the same buzz/noise again. Even when I put the Receiver/XPA-5 on their own powerstrip to a separate outlet I still got more buzz/noise in the speakers when the xbox was on. Similarly I got the same result when I disconnected and removed the Xbox when I tried plugging in my PS3. So does this mean Im getting a ground loop issue or a interference issue with the cables?
I also stopped by best buy and picked up a couple Monster RCA cables.... maybe not the best but I figured I'd try em then return em to determine if the problem was with my cheap radioshack rca cables. The monster rca cables didnt work any better.
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Post by 45acpauto on Mar 10, 2010 9:40:37 GMT -5
It could be a combo of things causing it. Plug the amp into the wall outlet first off. Use good shielded rca cables from the a/v rec to the amp. Than start hooking stuff up one at a time to see if you can find the problem.
good luck
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droopy
Seeker Of Truth
Posts: 6
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Post by droopy on Apr 19, 2010 20:56:51 GMT -5
When I saw the specifications, will it be possible to have 200 W per channel?. indicate a fairly robust weight, so I decided to buy, and come to Mexico City  |
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Post by audiobob on Jun 26, 2010 22:02:44 GMT -5
The ground loop may be caused from your cable t.v. You added a stong amp. When I used my Denon receiver I had hum or issues with ground loop. The Minute I added my seperate amps I heard a hum through my speakers. As soon as I added a "cable tv isolator" the hum was gone. They used to be free from the cable co. now you may have to buy one. Cost is $10-$50 depeding on where you find one. Some power strips with cable in/out may work as well however I had hit/miss luck but with the isolator on it works every time.
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Post by SuBXeRo on Jun 27, 2010 15:22:56 GMT -5
I had a ground loop issue about a year and half or 2 years ago with my bose companion pc speakers. I tried hookinh the sub up to different outlets in my apt and got the hum noise on allof them. one day, the hum went away. I can only assume that i had been messing around with wires and i changed something. With audio, you have to make sure that all of the audio is on the same circuit and that the audio equipemtn isnt being routed through different outlets that may be near by. the gap between outlets and your equipment can cause a groundloop. IMO, the best thing you can do is buy a cheap power center. I got this one from apc at vanns at the price its listed for www.vanns.com/shop/servlet/item/features/752878425/apc-g5?s_c=site_searchI havent tried it out yet since i havent been in town yet to test it but everything should be able to be plugged into it and it also conditions your power which should help. Crossing your wires at 90 degrees as ssaid above helps too and never run your signal wires parallel to your power wires. Thats just some input from experience that i have had and from reading that i did when i had my groundloop issue. i hope it helps, that hum noise is soo irritating especially after you dump hundreds and thousands into a really nice home theater |
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