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Post by novisnick on Aug 3, 2013 0:12:48 GMT -5
Just hooked up a new set of amps and was wondering if they should be this hot?
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Post by creimes on Aug 3, 2013 0:36:55 GMT -5
In class A they will get quite warm yes.
When did you decide on the XPA-1L's, you just got the XPA-5 right..?
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Post by Dark Ranger on Aug 3, 2013 1:33:13 GMT -5
Hi novisnick, Congrats on the XPA-1Ls. You kinda snuck those past us under the RADAR.  These amps will put off much more heat than your XPA-5. This is completely normal. Some of us have installed fan systems to help remove the excess heat. While it's not necessary, it does help to keep the amp running as cool as possible. I personally use Sherbourn's C-12 unit with great results. Some members here use solutions by Antec and have even gone the DIY route. If you cannot/do not want to use active cooling, I recommend you keep as much air space as possible above and below the amplifier, as well as around the sides. I completely understand your concern. The XPA-1Ls were my first high-bias amp, too, so it was a bit of a surprise. It's completely normal.  |
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Post by garbulky on Aug 3, 2013 1:55:53 GMT -5
It's perfectly normal. The XPA-1 L is unlike any other emotiva amp. It's designed to run very hot. You are good.
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Post by novisnick on Aug 3, 2013 4:34:14 GMT -5
I'm playing around with many different set ups, The 901 s require there own amp and I'm using them as front presents. They are thunderous for action movies, Dark side of the moon, etc, The K-28 have gone to a too a really Sweet place with the 1Ls!!....... Couldn't sleep with just an hour of listening last night and there's no way I can fire it up rite now,,, Darn! Well, I'm gona try to sleep, night all
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Post by taxman2 on Aug 4, 2013 6:58:16 GMT -5
I am using a low speed cooling fan ant just to move the air around. That is just enough.
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Post by Dan Laufman on Aug 4, 2013 15:07:17 GMT -5
Yeah, you've got to remember... In class A mode, it's a space heater. But a great sounding space heater!! |
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Post by taxman2 on Aug 5, 2013 5:58:35 GMT -5
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Post by novisnick on Aug 5, 2013 23:34:02 GMT -5
I love adding to global warming!,,!,, Oppo DAC SOUNDS GOOD RITE NOW
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Post by novisnick on Aug 5, 2013 23:36:11 GMT -5
I love adding to global warming!,,!,, Oppo DAC SOUNDS GOOD RITE NOW Sorry, didn't notice cap lock. Just enjoying some tunes and posts |
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Post by odedia on Aug 6, 2013 12:39:21 GMT -5
Nice audio rack. Is it custom made or something I can purchase myself? Thanks. |
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Post by taxman2 on Aug 7, 2013 4:30:58 GMT -5
It's DIY!
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Post by danny01 on Sept 14, 2013 13:13:56 GMT -5
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Post by Golden Ear on Sept 14, 2013 14:15:04 GMT -5
In Class A, it does get hot. If does fail for some reason, Emotiva cover their product with 5 years transferable warranty.
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Post by Leonski on Sept 22, 2013 23:47:41 GMT -5
I'd be careful OVER COOLING any amp....especially an 'a' amp which may have bias circuitry tied to temp. Bias will go UP if amp is over cool in an effort to 'warm it up'. That being said, no harm in helping the natural convection (upward movement) of the warmed air. I'd just be careful blowing air ON TO the amp or sticking one under the AC. I've read reliable reports...and even Nelson Pass chimed in when someone removed the top cover of one of the XA.5 series amps in an effort to make it cooler. They noticed it sounded better when the bias went 'up' in an effort to reach operating temp.
Anyone know what the 4 ohm 'a' power is?
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Post by dac0964 on Sept 25, 2013 14:04:38 GMT -5
Don't know if this has been ask before, and since I'll be getting my XPA-1Ls in a few days, is the amp drawing full power from the wall even when on stand-by mode? If so, do you guys recommend unplugging it when not in use?
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Post by tweed on Sept 25, 2013 14:36:51 GMT -5
dac0964-
No, stand-by mode they are not drawing full power. Same as any other piece of equipment in stand-by mode.
Only when you power those babies up in "A" mode will you get the space heater function.
Stand-by- put your hand on them and they will be cool to cold.
AB mode - they will be warm pretty much like any amp.
A mode - very warm- hot.
Congrats on your new amps!
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Post by dac0964 on Sept 25, 2013 15:12:30 GMT -5
dac0964- No, stand-by mode they are not drawing full power. Same as any other piece of equipment in stand-by mode. Only when you power those babies up in "A" mode will you get the space heater function. Stand-by- put your hand on them and they will be cool to cold. AB mode - they will be warm pretty much like any amp. A mode - very warm- hot. Congrats on your new amps! Thanks! That's what i thought but got confused when I read Audioholics' Tom Andry reviewed these amps and I quote, "A Class B amp has no power flowing through the transistors at standby while the Class A has full power." |
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Post by Dark Ranger on Sept 25, 2013 15:35:35 GMT -5
Thanks! That's what i thought but got confused when I read Audioholics' Tom Andry reviewed these amps and I quote, "A Class B amp has no power flowing through the transistors at standby while the Class A has full power." That's an unfortunate choice of words. The better word would have been idle, not standby. Standby means turned off (but still plugged in) or simply a sleep state in nearly all modern electronics. As tweed mentioned, the XPA-1L will be cool to cold in STANDBY (powered off, orange LED ring around power button). However, while the amplifier is powered on (blue LED around power button), the temperature will change depending on bias level and ambient temperatures. Running the amp in the low-bias "Class A/B" mode, it will run slightly to moderately warm. Running the amp in high-bias "Class A" mode, you won't have to use the central heating system as much in the winter. |
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Post by onstage09 on Sept 25, 2013 15:48:53 GMT -5
Novisnick
When I owned my Krell class A amp years ago it would run so hot I could not leave my hand on it for more than a couple of seconds.
Bruce.
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