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Post by leonski on May 21, 2020 17:04:02 GMT -5
While I tend to agree with Mr. 405, I need to add that amp temp is subject to VERIFICATION. IOW? Keep an eye and finger on 'em. Should stay fairly cool but you never know.
I took an InfraRed image of my amp from the top. ONE hot spot which I think is over part of the PS. I'd have to compare that picture with a case-open shot of the same amp.
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Post by novisnick on May 24, 2020 1:53:44 GMT -5
There is holes in top and bottom of most sound equipment. If it moves air Push or pull...it will also move dust thru it no matters in which way it blows... I have ordered one and i will try to setup something to prevent this to happen. Open you computer and you will see that fans do move lots of dust around, animals hair and other... True enough! I usually take my Sherbourn C-12 units out and clean them yearly. Small price to pay to keep all moving well and clean. My 5 units are about 5-7 years old I think. Can’t remember! LOL Big Dan and I were discussing Emotiva building similar units recently. They were remarkably built units. They could be configured to move air almost anyway you’d like including the ability to have air moved out a hose to exhaust elsewhere. Built like tanks. Thermostatically controllable or by trigger. |
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Post by martindktm on May 24, 2020 18:36:15 GMT -5
I have my unit running for a month and a half now with nothing installed to prevent sh** being blown thru it. I will let it run for another month and have look inside my Musical Fidelity M6SI and the fans to se what kind of stuff it pumped in...
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Post by leonski on May 24, 2020 19:15:33 GMT -5
I have my unit running for a month and a half now with nothing installed to prevent sh** being blown thru it. I will let it run for another month and have look inside my Musical Fidelity M6SI and the fans to se what kind of stuff it pumped in... Watch out if you have PETS. Cat or Dog hair will be an awful mess. |
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Post by martindktm on May 24, 2020 21:47:41 GMT -5
I have my unit running for a month and a half now with nothing installed to prevent sh** being blown thru it. I will let it run for another month and have look inside my Musical Fidelity M6SI and the fans to se what kind of stuff it pumped in... Watch out if you have PETS. Cat or Dog hair will be an awful mess.
I have both... So it should be interesting. But my stuff is in a room that they don't access too often.
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Post by leonski on May 25, 2020 14:07:20 GMT -5
If your pets disappered TODAY, unless you went nuts with cleaning, you'd still find cat hair in 5 years. That stuff gets everywhere!
I have a very good suggestion but would require some aggressive DIY and may not work properly with the fans AS ISSUED.
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Post by iraweiss on Nov 2, 2020 10:46:41 GMT -5
Quick Question.
How much ventilation space is needed on top (the sides, front and back are open) of an XPA-3 or XPA-3 Gen 3?
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Post by audiobill on Nov 2, 2020 11:02:48 GMT -5
If your pets disappered TODAY, unless you went nuts with cleaning, you'd still find cat hair in 5 years. That stuff gets everywhere! I have a very good suggestion but would require some aggressive DIY and may not work properly with the fans AS ISSUED. Aggressive DIY on the cat?  |
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Post by 405x5 on Nov 2, 2020 15:31:35 GMT -5
Shedding pets is a damm good reason to evaluate how your stuff is racked....With a dose of common sense and thoughtful arrangement, you’ve got cool, clean placement with no cluttering fan equipment whatsoever. Most 21st century gear flat out needs none.
Bill
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Post by 405x5 on Nov 2, 2020 15:43:41 GMT -5
If you can’t manage without one  |
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Post by chops on Nov 3, 2020 12:03:49 GMT -5
Years ago I had an SAE A205 amp that one of my brothers gave me because the caps in it leaked and ended up frying the rectifier. I replaced the two large caps with slightly larger ones, as well as an upgraded rectifier. I had a pair of those dbx DB-SW15 subwoofers from the old DAK catalog days that my oldest brother bought new back in the late 80's. One of them was blown so he gave them to me. I pulled out the 15" woofers, made new baffles for the enclosures, bypassed the cheap stock passive crossovers in them, braced the heck out of the enclosures, and mounted a couple of 18" Klipsch pro audio bass drivers in them inverted. I also stuffed the enclosures with stuffing, and lots of it.
Long story short-ish... The Klipsch drivers were only rated down to 35 Hz, the dbx enclosures were way too small for those 18's, and I had the enclosures way over stuffed. Using a Behringer 2-way active crossover, a Behringer dual 30 band EQ, and a Behringer 2-ch 15 band EQ with built-in compressor/limiter, I EQ'ed the heck out of those woofers and powered them with the SAE amp. The amp never shut down but would get so hot you could grill your New York strips on it with ease. So I took a small 6" desktop fan, took the lid off the amp and hung the fan upside down blowing directly into the amp's guts, controlled by an old industrial digital temperature controller with dual LED displays (one for current temp, one for target temp). Worked great, but you could still make a half dozen hard boiled eggs on it. LOL
Anyway, that's the only "active" cooling I've ever used on an amp. That was the good ole' days, back in my mid-teens.
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Post by SteveH on Nov 3, 2020 20:18:22 GMT -5
Quick Question. How much ventilation space is needed on top (the sides, front and back are open) of an XPA-3 or XPA-3 Gen 3? My system is 7.2.4. I have two DR1s, a Thirteen 1.6S and an RMC-1 one in an open back cabinet. I have run the RMC-1 volume at -10dB in ALL STEREO for hours with no heat issues. The Thirteen 1.6s actually gets hotter than the DR-1s. I have at least one inch on each side and the top of the DR1s, a little more on the top of the Thirteen 1.6S and they have been up and running for two years. I was able to squeeze everything into my existing cabinet once I cut the back out and beefed up the shelves, that Thirteen 1.6S weighs 55 pounds.  |
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Post by leonski on Dec 10, 2020 16:23:59 GMT -5
As I look thru this thread, a Question occurs.....
Is it POSSIBLE to overcool a component? I'm not talking to the point of Condensation, which would damage gear.
Do some transistors run 'better' in some audible fashion if somewhere in the middle o their temp operating range?
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Post by JKCashin on Sept 7, 2021 23:50:43 GMT -5
I have my unit running for a month and a half now with nothing installed to prevent sh** being blown thru it. I will let it run for another month and have look inside my Musical Fidelity M6SI and the fans to se what kind of stuff it pumped in... So.... 15 months.... how has it been? |
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Post by JKCashin on Sept 7, 2021 23:51:54 GMT -5
For those who do have cooling units that you can set to a specific temperature, what is a good target for amplifiers? I have mine set to maintain ~30C
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Post by Deleted on Sept 7, 2021 23:56:59 GMT -5
For those who do have cooling units that you can set to a specific temperature, what is a good target for amplifiers? I have mine set to maintain ~30C No less than your room temperature otherwise the fan will run all the time. Air cooling depends on ambient temp in your environment. And you'll never cool the amp below ambient. Personally, my room never exceeds 80 degrees so I have the fan to run at 88 degrees which is default. Ha, thanks for reviving an old thread I made. Seeing the Emotiva DR3 under fan brings back memories! |
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Post by martindktm on Sept 9, 2021 9:46:29 GMT -5
I have my unit running for a month and a half now with nothing installed to prevent sh** being blown thru it. I will let it run for another month and have look inside my Musical Fidelity M6SI and the fans to se what kind of stuff it pumped in... So.... 15 months.... how has it been? Well everything still run good. But had been too lazy to open up and look inside. I might do that in a month or two. I will keep you all updated with pictures. |
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Post by 405x5 on Sept 9, 2021 17:06:53 GMT -5
In “ round numbers”, I’m in my 45th year of no fans ( by design).
Of course I totally get the need in, (perhaps many) cases for powered ventilation.
Anyone who’s cleaned out a PC knows why I’m no fan (is that a pun)?
Actually, I got a free fan, as my HVAC register is in the floor behind the rig and that’s not a bad thing.
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Post by leonski on Sept 10, 2021 17:53:24 GMT -5
If your pets disappered TODAY, unless you went nuts with cleaning, you'd still find cat hair in 5 years. That stuff gets everywhere! I have a very good suggestion but would require some aggressive DIY and may not work properly with the fans AS ISSUED. Aggressive DIY on the cat? Yes.....You could always have Kitty Sanforized. But seriously? I'm not going to disclose it ALL but suffice it to say that at some point the air needs to be FILTERED before soing thru the fan system. |
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Post by leonski on Oct 29, 2021 17:23:22 GMT -5
Years ago I had an SAE A205 amp that one of my brothers gave me because the caps in it leaked and ended up frying the rectifier. I replaced the two large caps with slightly larger ones, as well as an upgraded rectifier. I had a pair of those dbx DB-SW15 subwoofers from the old DAK catalog days that my oldest brother bought new back in the late 80's. One of them was blown so he gave them to me. I pulled out the 15" woofers, made new baffles for the enclosures, bypassed the cheap stock passive crossovers in them, braced the heck out of the enclosures, and mounted a couple of 18" Klipsch pro audio bass drivers in them inverted. I also stuffed the enclosures with stuffing, and lots of it. Long story short-ish... The Klipsch drivers were only rated down to 35 Hz, the dbx enclosures were way too small for those 18's, and I had the enclosures way over stuffed. Using a Behringer 2-way active crossover, a Behringer dual 30 band EQ, and a Behringer 2-ch 15 band EQ with built-in compressor/limiter, I EQ'ed the heck out of those woofers and powered them with the SAE amp. The amp never shut down but would get so hot you could grill your New York strips on it with ease. So I took a small 6" desktop fan, took the lid off the amp and hung the fan upside down blowing directly into the amp's guts, controlled by an old industrial digital temperature controller with dual LED displays (one for current temp, one for target temp). Worked great, but you could still make a half dozen hard boiled eggs on it. LOL Anyway, that's the only "active" cooling I've ever used on an amp. That was the good ole' days, back in my mid-teens. I wouldn't EVER blow air onto an amp....even cover off. Suck air THRU the amp and exhaust. Years ago? I had a Carver Cube of 200x2. I don't remember how many output devices. Claim was that 'it never runs hot'......Well, not really true. With my Magnepans (5 ohm) running FULL OUT.....the ladder display was lit except for the TOP-most LED, the darn thing would ge nice and toasty. My solution was to build a box the size of the back of the amp....maybe 7" x 7" and install a 4" or 5" box fan for 120volts. The fan sucked air THRU the amp and pushed it OUT. Very noisy, but who cared? The music was so loud you could hear it 3 doors down without problem. But the amp stayed cool! |
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