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Post by tchaik on Aug 23, 2017 19:31:01 GMT -5
ever since i got the XPR-2 amp i noticed how much more heat it generated than my XPA-2 gen 1 and XPA-5 gen 1. speaking with lonnie at an emofest, he explained that to get the results that they wanted, the XPR-2 had increased bias and other adjustments that caused it to generate heat, and that i should not be worried about any long term degradation. in my cabinet even with holes in the back of the cabinet the amp would get hot enough that it was painful to touch the top. so.... i finally came up with a solution. i purchased the AC-Infinity Aircom T8 component fan system to place atop the amp which projects the air out the back. Along with that i increased the size of the opening in the back of the cabinet and Voila! the amp can be on all day and the top temperature does not exceed about 94 degrees. It may not mean much but it puts my soul to rest that the amp is now running much cooler than before. to the touch the amp top feels about as hot as semi-warm bread.  here is a pic for your perusal. tchaik................  |
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,223 
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Post by novisnick on Aug 23, 2017 19:41:42 GMT -5
ever since i got the XPR-2 amp i noticed how much more heat it generated than my XPA-2 gen 1 and XPA-5 gen 1. speaking with lonnie at an emofest, he explained that to get the results that they wanted, the XPR-2 had increased bias and other adjustments that caused it to generate heat, and that i should not be worried about any long term degradation. in my cabinet even with holes in the back of the cabinet the amp would get hot enough that it was painful to touch the top. so.... i finally came up with a solution. i purchased the AC-Infinity Aircom T8 component fan system to place atop the amp which projects the air out the back. Along with that i increased the size of the opening in the back of the cabinet and Voila! the amp can be on all day and the top temperature does not exceed about 94 degrees. It may not mean much but it put's my soul to rest that the amp is now running much cooler than before. to the touch the amp top feels about as hot as semi-warm bread. here is a pic for your perusal. tchaik................ Sweet, great solution! I've been using a set of Sherbourn C-12 fans on my XPR-1's since I purchased the amps. Heat kills my friend! Lets all chill out! LOL  |
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Post by audiobill on Aug 24, 2017 14:36:43 GMT -5
I would never, ever stack big amps up the way many HT types do......
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Post by leonski on Sept 12, 2017 18:06:29 GMT -5
I would never, ever stack big amps up the way many HT types do...... I would add that I'd never have a large power amp in an enclosure, even WITH fan. After all? Where does the fan pull air from and push it TO? Blowing out an enlarged hole in the rear of the cabinet is good, but will it long-term be enough? |
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Post by audiobill on Sept 12, 2017 18:34:11 GMT -5
Good way to justify another amp, toast those caps!!!!
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Post by leonski on Sept 12, 2017 19:30:16 GMT -5
Good way to justify another amp, toast those caps!!!! Even 105c rated PS caps can only take so much. |
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Post by highfihoney on Sept 22, 2017 23:04:06 GMT -5
Wow I can't fathom customer service telling you beat build up is ok when heat kills amplifiers ,an amp as massive as the XPR-2 should NEVER be inside an enclosed rack ,or even placed on a middle shelf ,your amp should be clear on both sides and at least 12 inches in the top if not totally clear ,sadly most of my Emotiva gear has been sold & replaced with McIntosh amplifiers but I still own a single XPR-2 and it gets pretty hot when driven medium to hard ,I'd never box that amp in ,especially since the XPR-1's and XPR-2's are the unicorns of hifi ,to equal it's performance your looking at spending $6,000 to $10,000 and the amps aren't made any longer ,my XPR-2's got just as warm as the XPR-1 monoblocks I spent 2 years with and I wouldn't ever recommend relying on fans to suck out radiant heat ,you be got 1 of the best high wattage solid state amplifiers ever made but it needs lots of room to breathe naturally ,forcing air over the amp also creates a problem of sucking dust into and into the amp chasis,that amp should be fully exposed and it will last you your entire life .
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,223
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Post by novisnick on Sept 22, 2017 23:14:16 GMT -5
Wow I can't fathom customer service telling you beat build up is ok when heat kills amplifiers ,an amp as massive as the XPR-2 should NEVER be inside an enclosed rack ,or even placed on a middle shelf ,your amp should be clear on both sides and at least 12 inches in the top if not totally clear ,sadly most of my Emotiva gear has been sold & replaced with McIntosh amplifiers but I still own a single XPR-2 and it gets pretty hot when driven medium to hard ,I'd never box that amp in ,especially since the XPR-1's and XPR-2's are the unicorns of hifi ,to equal it's performance your looking at spending $6,000 to $10,000 and the amps aren't made any longer ,my XPR-2's got just as warm as the XPR-1 monoblocks I spent 2 years with and I wouldn't ever recommend relying on fans to suck out radiant heat ,you be got 1 of the best high wattage solid state amplifiers ever made but it needs lots of room to breathe naturally ,forcing air over the amp also creates a problem of sucking dust into and into the amp chasis,that amp should be fully exposed and it will last you your entire life . I have one each of a C-12 Sherbourn fan that sucks air out of my XPR-1’s and blows the hot air forward. Has kept my amps cool from day one. Keep your amps ventalated or they will die! |
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Post by Loop 7 on Sept 23, 2017 0:47:46 GMT -5
I would never, ever stack big amps up the way many HT types do...... Yeah, those images of 3 big power amps stacked one atop the other make me nervous - irrational because they aren't my amps. |
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Post by tchaik on Oct 25, 2017 16:12:41 GMT -5
Wow I can't fathom customer service telling you beat build up is ok when heat kills amplifiers ,an amp as massive as the XPR-2 should NEVER be inside an enclosed rack ,or even placed on a middle shelf ,your amp should be clear on both sides and at least 12 inches in the top if not totally clear ,sadly most of my Emotiva gear has been sold & replaced with McIntosh amplifiers but I still own a single XPR-2 and it gets pretty hot when driven medium to hard ,I'd never box that amp in ,especially since the XPR-1's and XPR-2's are the unicorns of hifi ,to equal it's performance your looking at spending $6,000 to $10,000 and the amps aren't made any longer ,my XPR-2's got just as warm as the XPR-1 monoblocks I spent 2 years with and I wouldn't ever recommend relying on fans to suck out radiant heat ,you be got 1 of the best high wattage solid state amplifiers ever made but it needs lots of room to breathe naturally ,forcing air over the amp also creates a problem of sucking dust into and into the amp chasis,that amp should be fully exposed and it will last you your entire life . it wasn't customer service that told me that. it was lonnie specifically at an emofest, where I spoke to him personally about it. btw..... the fan unit does not force air into the amp, but draws air out of the top of the amp and forces it out of the back of the fan unit.. as for heat transfer out the back of the cabinet, the path is completely clear into open space and the average temp is in the upper 70's/low 80's and only after I run it hard does the temp run to the low 90's. I am satisfied. as for the value of the XPR-2 ........ you are so right. it would take many, many more dollars to get that performance in another amp. tchaik.................................. |
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