|
|
Post by novisnick on Nov 10, 2013 18:15:42 GMT -5
Hi all,
Over the past month or so, my XPR-1s do run warm,hot when pushed for some time. But can you really push amps like these with Klipsch speakers? Ha,,,,,Ha,,,,,,. They keep my room toasty but I never thought there was a problem
My XPA-1Ls ran hotter then these if you'd like to know.
Peace,
Nick
|
|
|
|
Post by Jim on Nov 10, 2013 19:44:49 GMT -5
My xpr 2 idles at about 3.4 -3.8 amps and runs the same temperature whether I'm pushing it or it is idling. everyone who owns an xpr 2 says it runs hot especially in comparison to the xpr 5. That's weird. I wonder what in the design causes that? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 10, 2013 20:53:29 GMT -5
My xpr 2 idles at about 3.4 -3.8 amps and runs the same temperature whether I'm pushing it or it is idling. everyone who owns an xpr 2 says it runs hot especially in comparison to the xpr 5. That's weird. I wonder what in the design causes that? I thought it was weird too but when other people were reporting the same thing I took it as normal, maybe someone from emotiva could weigh in on this.... |
|
LCSeminole
Global Moderator 
Res firma mitescere nescit.
Posts: 20,865
|
Post by LCSeminole on Nov 10, 2013 21:38:12 GMT -5
My XPR-2 definitely runs a bit warm compared to my XPR-5, I do however have fans that pull the heat out of both XPR's so I have no worries.
|
|
|
|
Post by mrwoolly on Feb 2, 2014 9:05:38 GMT -5
So I took delivery of my XPR-2 a couple of weeks ago along with an XPR-5. The XPR-5 runs almost stone cold - just like the Sunfire 7x400 did before it. The XPR-2 is hot enough to make me worried. After it had been on for a few hours yesterday it was almost too hot to touch. As this is also a class A/B & H I'd expected it to be cool too. Then I started watching the power draw from my Furman power conditioner. The XPR-5 will power up and with no signal settle down to about 0.8 Amps. The XPR-2 initially will draw about the same. But then still with no signal the power draw ramps up over about 5 minutes to over 3.5 amps. I've even repeated the process with all the inputs and speakers removed from the XPR-2. Same behavior. Current draw ramps up over 5 minutes to just over 3.5 amps. That's over 400 watts going to heat. Anyone any ideas? This is a follow up post to my XPR-2 running hot issue. I called tech support and had it confirmed that the XPR-2 does run hot I never got to the bottom of the strange power consumption characteristic. However, because my listening room is so well insulated both acoustically and thermally and the ambient temperature getting into the 90s in the evenings I had no option but to send the XPR-2 back under the 30 day no questions asked policy. It took a couple of months and several phone calls before the refund arrived, but it has. In the meantime a second XPR-5 has arrived and been installed. The pair of them are running nice and cool and look awesome in the rack. Instead of the XPR-2 powering my left / right front main speakers, I've ended up bi-amping the front Center, Left and Right speakers with a pair of XPR-5s, that used three amps from each of the two XPR-5s and I run the Center Woofer along with the Left/Right Tweeters from one chassis and the Center Tweeter along with the Left/Right Woofers from the other chassis. The remaining amps run the rears and the massive passive subs. Listening is yet again a huge pleasure. It's acoustically like in the Claratin advert when the film of fug is peeled back in this case to reveal fantastic detailed and dynamic music. New detail of the mixes is revealed, where there was once a couple of over-dubbed vocals now there are three distinct over-dubs, the detail is hugely entertaining. Can't wait to hear what the XMC-1 will sound like driving these amps. |
|
|
|
Post by tchaik on Feb 2, 2014 9:10:20 GMT -5
Well I have an xpr2 and an xpr5. I received my xpr5 as the xpr2 was out of stock when I ordered. I hooked up the xpr5 first and that amp ran as cool as can be. I was actually suprised at how cool it was running. Fast forward, I received my XPR2 on tuesday. I hooked it up and have pushed it moderately but not to hard and that amp gives off some decent heat. the case is very warm to the touch. Is this normal? I am running Monitor Audio GX300's. I read that the xpr series runs pretty cool but mine xpr2 doesn't Thanks lonnie explained to me at the emofest that that is the design for the xpr-2 and it is expected to run much hotter than the xpr-5. he said that the bias setting is different and the channels stay in class A longer than they do in the xpr-5 before switching to class AB. tchaik........ |
|
|
|
Post by Boomzilla on Feb 2, 2014 10:12:12 GMT -5
My XPR-2 runs hot as a firecracker too. No worries - they all do AND they have a five-year warranty. My XPR-2 doesn't sound as dynamic as my old XPA-2. Is THAT typical?
|
|
|
|
Post by aud on Feb 2, 2014 11:04:21 GMT -5
My XPR-2 runs hot as a firecracker too. No worries - they all do AND they have a five-year warranty. My XPR-2 doesn't sound as dynamic as my old XPA-2. Is THAT typical? I've owned my two XPR-1s for about a year now. I replaced a Parasound Halo 125 watt per channel amp. I was hoping the XPR -1s would spring more dynamics out of my Paradigm towers, but I started to realize it was never going to happen. They do keep my room very warm during the Winter months and my A/C equipment running all the time during the Summer. The Paradigm speakers have a very open sound compared to other speakers I own, so maybe I was expecting too much. |
|
|
|
Post by kimkim on Aug 6, 2014 11:42:43 GMT -5
My xpr-2 runs very hot. Very.
|
|
|
|
Post by Audiozealot on Oct 30, 2014 22:31:16 GMT -5
I recently purchased the XPR-2 and XPR=5 and was curious about the heat difference so ended up on this thread. Now that I have had them for a few weeks I have put a digital thermometer over one of the channel vents of the XPR-2 periodically to check the consistency of the heat. It is dead on 118o F every time I have measured it. Emotiva Tech support said anything under 140o F is okay, Just thought I'd put some quantitative feedback out here.
|
|
|
|
Post by Axis on Oct 30, 2014 22:39:18 GMT -5
I recently purchased the XPR-2 and XPR=5 and was curious about the heat difference so ended up on this thread. Now that I have had them for a few weeks I have put a digital thermometer over one of the channel vents of the XPR-2 periodically to check the consistency of the heat. It is dead on 118 o F every time I have measured it. Emotiva Tech support said anything under 140 o F is okay, Just thought I'd put some quantitative feedback out here. Looks like a hell of a system you have there with the XMC-1, XPR amps and DIY speakers with Top-End drivers. Cheers ! |
|
|
|
Post by Audiozealot on Nov 6, 2014 22:26:00 GMT -5
I am still relatively new to the XPR family. I've noticed that once my XPR-2 warms up I hear a relay switching inside. There is no change in sound just the relay switching. Does anyone know if this is normal? I called tech support and the answer I go was "I am not familiar with the inner workings of that amp" which I think is pretty weak. Any help on this issue would be appreciated.
|
|
|
|
Post by novisnick on Nov 6, 2014 23:00:38 GMT -5
I'll answ a couple of questions about my XPR-1 amps that have been asked.
At idle with no music playing a combined draw of 266 watts, that's both amps.
With an ambient room temperature of 75* f the left amp is 94* f and the right amp is 97* f. This temperature is a reading after an hour of mixed use. Easy listening and the some louder hard rock.
Just thought I'd share this info with y'all
Edit: niether of my C-12 cooling fans have come on tonight but they usually do, so this is not a long term test. Only an hour of heat up time. After many hours this test would normally have different readings.
ill post them when I get a chance.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 6, 2014 23:56:23 GMT -5
I am still relatively new to the XPR family. I've noticed that once my XPR-2 warms up I hear a relay switching inside. There is no change in sound just the relay switching. Does anyone know if this is normal? I called tech support and the answer I go was "I am not familiar with the inner workings of that amp" which I think is pretty weak. Any help on this issue would be appreciated. When I had my xpr-2 I never heard a relay switching but I did hear the heat sink " click " from time to time. It ran very warm all the time whether it was idle or if it was being pushed I used an infrared temp gun and got readings of 130f. |
|
|
|
Post by novisnick on Nov 7, 2014 0:13:18 GMT -5
I am still relatively new to the XPR family. I've noticed that once my XPR-2 warms up I hear a relay switching inside. There is no change in sound just the relay switching. Does anyone know if this is normal? I called tech support and the answer I go was "I am not familiar with the inner workings of that amp" which I think is pretty weak. Any help on this issue would be appreciated. When I had my xpr-2 I never heard a relay switching but I did hear the heat sink " click " from time to time. It ran very warm all the time whether it was idle or if it was being pushed I used an infrared temp gun and got readings of 130f. Was that reading inside a rack or open air? my XPA-1Ls ran that hot in an i closure, once I placed a set of C-12 fans on them they were just fine. Disclaimer; I've never owned an XPR-2 so I have no reference with them. The XPR-1s that I own make not sounds and are very stable.after an hour my fans will kick on , I use them because HEAT is an audio gear nemesis!!! Ounce of of prevention ya know! 8) |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 7, 2014 0:20:35 GMT -5
I had a cooler guys fan that I used on my my xpr, my amp was sitting on top of my stand so it was open on all sides. The heat sink clicking/shifting was pretty seldom but it happened.
|
|
KeithL
Administrator
Posts: 10,276
|
Post by KeithL on Nov 7, 2014 1:16:21 GMT -5
There is no relay-actuated mechanism in the XPR-2 that would "cut in" whan the amp warms up; I'm pretty sure you're hearing the heat sinks creak a little bit. Incidentally, as for how warm an amplifier runs....... The XPR's (and most of our other amps) use what's known as "passive convection cooling" - which means that the warm air around the heat sinks rises, goes out the vents in the top of the amp, which in turn draws cooler air in through the bottom vents. Once the temperature equalizes, after a few hours, for a given power level the amp will tend to stay a more or less fixed number of degrees warmer than the air around it. (This is true as long as you don't block the vents.) So, the warmer the air in the cabinet, the warmer the amp will run. Now, from the cabinet's point of view, the heat produced by the amp is trapped in the cabinet (this would be equally true if the amp had a fan; either way the heat all ends up in the cabinet after it leaves the amp). If the cabinet has openings, the heat again leaves via convection, which again only works if the cabinet gets significantly warmer than the room itself. If the cabinet is sealed, then the only way for the heat to get out is by "soaking through" the sides and front of the cabinet, which is not a very efficient way to dissipate heat. Even twenty or thirty watts of heat will build up in a well sealed cabinet pretty quickly; remember how warm those thirty watt incandescent light bulbs could get?. This is why, with an enclosed cabinet, you should always provide at least some ventilation (even a small quiet fan that runs all the time). If your cabinet is open on the back, that's plenty of ventilation for something like a pre/pro, but not really enough for a power amp. When I had my xpr-2 I never heard a relay switching but I did hear the heat sink " click " from time to time. It ran very warm all the time whether it was idle or if it was being pushed I used an infrared temp gun and got readings of 130f. Was that reading inside a rack or open air? my XPA-1Ls ran that hot in an i closure, once I placed a set of C-12 fans on them they were just fine. Disclaimer; I've never owned an XPR-2 so I have no reference with them. The XPR-1s that I own make not sounds and are very stable.after an hour my fans will kick on , I use them because HEAT is an audio gear nemesis!!! Ounce of of prevention ya know! 8) |
|
|
|
Post by novisnick on Nov 7, 2014 9:00:31 GMT -5
There is no relay-actuated mechanism in the XPR-2 that would "cut in" whan the amp warms up; I'm pretty sure you're hearing the heat sinks creak a little bit. Incidentally, as for how warm an amplifier runs....... The XPR's (and most of our other amps) use what's known as "passive convection cooling" - which means that the warm air around the heat sinks rises, goes out the vents in the top of the amp, which in turn draws cooler air in through the bottom vents. Once the temperature equalizes, after a few hours, for a given power level the amp will tend to stay a more or less fixed number of degrees warmer than the air around it. (This is true as long as you don't block the vents.) So, the warmer the air in the cabinet, the warmer the amp will run. Now, from the cabinet's point of view, the heat produced by the amp is trapped in the cabinet (this would be equally true if the amp had a fan; either way the heat all ends up in the cabinet after it leaves the amp). If the cabinet has openings, the heat again leaves via convection, which again only works if the cabinet gets significantly warmer than the room itself. If the cabinet is sealed, then the only way for the heat to get out is by "soaking through" the sides and front of the cabinet, which is not a very efficient way to dissipate heat. Even twenty or thirty watts of heat will build up in a well sealed cabinet pretty quickly; remember how warm those thirty watt incandescent light bulbs could get?. This is why, with an enclosed cabinet, you should always provide at least some ventilation (even a small quiet fan that runs all the time). If your cabinet is open on the back, that's plenty of ventilation for something like a pre/pro, but not really enough for a power amp. Was that reading inside a rack or open air? my XPA-1Ls ran that hot in an i closure, once I placed a set of C-12 fans on them they were just fine. Disclaimer; I've never owned an XPR-2 so I have no reference with them. The XPR-1s that I own make not sounds and are very stable.after an hour my fans will kick on , I use them because HEAT is an audio gear nemesis!!! Ounce of of prevention ya know! 8) Additional note: my cabinet is open front and back and my C-12 fans exhaust forward out the front. Cool as " Joe Cool "  |
|
|
|
Post by Audiozealot on Nov 12, 2014 11:16:03 GMT -5
It is really loud. The amp is placed in an equipment room behind the front wall on the floor and I can hear it through the equipment door opening 14 feet away. It is as loud as the relay when it turns on. |
|
|
|
Post by grigorianvlad on Dec 29, 2014 9:34:10 GMT -5
Hi, everyone. I am on the market for an XPR-2 and I have a question.
Currently I am using an XPA-5 Gen 2 to power two pairs of speakers running in parallel - the Polk LSiM 705s and Magnepan 2.7Q/Rs. The 705s are 8ohm and the XPA-5 does a fine job handling them. But the Maggies are 4ohm. So, I want to get an XPR-2 to handle the Maggies alone while the XPA-5 powers the Polks.
Here is the question. Will there be timbre mismatch between one pair and the other being powered by different Emotiva power amp (XPR/XPA)?
|
|
