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Post by dlaunde on Feb 2, 2020 16:32:50 GMT -5
Would it be OK to stack a BasX A150 ontop of another if the feet are removed from the top one? The two units are only being used for Atmos speaker duty.
Thanks!
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Post by novisnick on Feb 2, 2020 16:46:24 GMT -5
I’d say that the feet are the minimum space those amps need to breathe. I’ve never owned one but as a rule air needs to flow through the amp case/housing.
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Post by leonski on Feb 7, 2020 2:24:38 GMT -5
Heat is the Big Enemy. 'only' is one of those words which worries me in this context.
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Post by vcautokid on Feb 7, 2020 6:07:34 GMT -5
Convective cooling is the amplifier's key to a long trouble free life. Restrictions to the thermal dissipation is going reduce the life of your amplifier. How much? Who knows, but in any case, impeding the air flow in the case is a bad idea near the top of the stack of bad ideas. If it were me, I would find another way as far as the 2 amplifier location and heat management are concerned. Just saying.
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Post by leonski on Feb 8, 2020 1:34:41 GMT -5
Convective cooling is the amplifier's key to a long trouble free life. Restrictions to the thermal dissipation is going reduce the life of your amplifier. How much? Who knows, but in any case, impeding the air flow in the case is a bad idea near the top of the stack of bad ideas. If it were me, I would find another way as far as the 2 amplifier location and heat management are concerned. Just saying. Yes, Of Course. Now? Let's follow this thru, if we may. A FAN is not necessarily the solution. Blowing a fan on TOP of an amp might actually prevent the natural convection which would cool it. Sucking air up / thru in the 'natural' directio might help. But exhausting into a restricted cabinet is not much of a solution, either. Full-open racks with just a top and bottom are nice, but still and all? Stacking stuff is certainly a lifetime limiter. Class 'A' gear suffers worst, perhaps, since just SITTING there is qute a power draw. At idle ALL power draw for any piece of gear is pure heat. |
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Post by RichGuy on Feb 9, 2020 10:56:33 GMT -5
Keep the feet!
The only reason you should remove the feet are if other feet are installed (presumably taller) or if rack mounting is used and in this case the spacing should be no closer than if feet were used. The spacing distance of the feet are the minimum clearance which should be used.
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cawgijoe
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Post by cawgijoe on Feb 9, 2020 13:50:14 GMT -5
The only reason to remove the feet are to replace them with with new feet, possibly feet with isolation properties. Having said that, I had to remove the feet from my new XPA-5 Gen 3 amp and use sorbothane feet (six) in order for the new amp to fit on my open shelf unit. The XPA-5 Gen 1 feet were a 1/4 inch lower. My shelving unit is open on all sides and affords about two inches of breathing space above the amp, however the shelf has a "lip" on the front that makes the entrance area shorter.
Never had a heat issue with the Gen 1 and no issue with the slightly shorter (now) Gen 3.
Having no air flow on the bottom is not a geed thing.
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Post by dlaunde on Feb 10, 2020 9:37:54 GMT -5
So, the only way to get things to fit is to remove the feet off the bottom A150, but leave the feet on the second A150 stacked on top, allowing airflow for the top of the first A150 and airflow for both the bottom and top of the second A150.
Because of space, the only other way to solve this would be sell off both A150's and get a single unit 5 channel amp. But that seems like a little bit of overkill for just running Atmos speakers, no?
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cawgijoe
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Post by cawgijoe on Feb 10, 2020 10:24:20 GMT -5
So, the only way to get things to fit is to remove the feet off the bottom A150, but leave the feet on the second A150 stacked on top, allowing airflow for the top of the first A150 and airflow for both the bottom and top of the second A150. Because of space, the only other way to solve this would be sell off both A150's and get a single unit 5 channel amp. But that seems like a little bit of overkill for just running Atmos speakers, no? You still need airflow from the bottom of the unit you are removing the feet from. You could get away with shorter feet....either attached or not, but you still need space for air to flow. Can you NOT stack the two amps? Is there a spot somewhere else? Can you switch components? |
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Post by mountain on Feb 10, 2020 10:59:16 GMT -5
I don’t stack my components at all. Period. I agree that heat is not your friend when it comes to audio equipment.
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Post by KeithL on Feb 10, 2020 11:02:38 GMT -5
Since we seem to be talking about a rack..... Another option would be to sit the bottom amp flat on the shelf IF YOU CAN CUT HOLES OR SLOTS IN THE SHELF TO ALLOW AIRFLOW FROM BOTTOM TO TOP. (Make sure the holes line up with the vents on the bottom of the amp.)
Note that the entire issue here is HEAT. All Class A/B amps generate some significant amount of heat... which will build up in a sealed cabinet. In fact, even with a few inches around the amp, you still cannot safely install the amps in an entirely sealed cabinet unless it's a huge cabinet. You need both space around the amps - and some way for the heat to eventually find its way out of the cabinet.
Otherwise, with no place to go, the heat will eventually build up. |
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Post by dlaunde on Feb 10, 2020 13:27:01 GMT -5
Since we seem to be talking about a rack..... Another option would be to sit the bottom amp flat on the shelf IF YOU CAN CUT HOLES OR SLOTS IN THE SHELF TO ALLOW AIRFLOW FROM BOTTOM TO TOP. (Make sure the holes line up with the vents on the bottom of the amp.)
Note that the entire issue here is HEAT. All Class A/B amps generate some significant amount of heat... which will build up in a sealed cabinet. In fact, even with a few inches around the amp, you still cannot safely install the amps in an entirely sealed cabinet unless it's a huge cabinet. You need both space around the amps - and some way for the heat to eventually find its way out of the cabinet.
Otherwise, with no place to go, the heat will eventually build up. For clarification, this is an open AV stand without a back panel installed.
The issue is I have recently added a SurgeX rackmount style surge suppressor but the only place it can fit is on top of my two BasX A150's with the feet removed from the bottom A150, otherwise there isn't enough height clearance. I have absolutely no other room on the AV stand (right upper shelf is all components, right lower shelf is AV receiver and another component, left bottom shelf is the XPA 5, left upper shelf is the two A150s and now the surge suppressor).
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cawgijoe
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Post by cawgijoe on Feb 10, 2020 14:02:23 GMT -5
Since we seem to be talking about a rack..... Another option would be to sit the bottom amp flat on the shelf IF YOU CAN CUT HOLES OR SLOTS IN THE SHELF TO ALLOW AIRFLOW FROM BOTTOM TO TOP. (Make sure the holes line up with the vents on the bottom of the amp.)
Note that the entire issue here is HEAT. All Class A/B amps generate some significant amount of heat... which will build up in a sealed cabinet. In fact, even with a few inches around the amp, you still cannot safely install the amps in an entirely sealed cabinet unless it's a huge cabinet. You need both space around the amps - and some way for the heat to eventually find its way out of the cabinet.
Otherwise, with no place to go, the heat will eventually build up. For clarification, this is an open AV stand without a back panel installed.
The issue is I have recently added a SurgeX rackmount style surge suppressor but the only place it can fit is on top of my two BasX A150's with the feet removed from the bottom A150, otherwise there isn't enough height clearance. I have absolutely no other room on the AV stand (right upper shelf is all components, right lower shelf is AV receiver and another component, left bottom shelf is the XPA 5, left upper shelf is the two A150s and now the surge suppressor).
Can the SurgeX be placed to the right/left or behind the rack? Is there any other space for it? Just asking, though I'm sure you would have done that by now.... |
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Post by dlaunde on Feb 10, 2020 14:35:19 GMT -5
Can the SurgeX be placed to the right/left or behind the rack? Is there any other space for it? Just asking, though I'm sure you would have done that by now.... I may be able to place it on the floor under the TV stand. I'll take a look |
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Post by leonski on Feb 10, 2020 16:07:48 GMT -5
Since we seem to be talking about a rack..... Another option would be to sit the bottom amp flat on the shelf IF YOU CAN CUT HOLES OR SLOTS IN THE SHELF TO ALLOW AIRFLOW FROM BOTTOM TO TOP. (Make sure the holes line up with the vents on the bottom of the amp.)
Note that the entire issue here is HEAT. All Class A/B amps generate some significant amount of heat... which will build up in a sealed cabinet. In fact, even with a few inches around the amp, you still cannot safely install the amps in an entirely sealed cabinet unless it's a huge cabinet. You need both space around the amps - and some way for the heat to eventually find its way out of the cabinet.
Otherwise, with no place to go, the heat will eventually build up. I was just about to suggest just that. HOLES under the amp to provide ventilation. Lots of holes! or Slots. This could give rise to some other issues, but might be viable. |
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cawgijoe
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Post by cawgijoe on Feb 10, 2020 16:54:02 GMT -5
Can the SurgeX be placed to the right/left or behind the rack? Is there any other space for it? Just asking, though I'm sure you would have done that by now.... I may be able to place it on the floor under the TV stand. I'll take a look If the floor is carpeted, you could place it on a ceramic tile from Home Depot or Lowe’s. I’ve done that. |
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Post by dlaunde on Feb 11, 2020 7:09:19 GMT -5
I was able to tuck the SurgeX under the TV stand without it looking messy or even visible. Feet are now back on both amps, double stacked, with room to the front, sides, back, and top
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cawgijoe
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Post by cawgijoe on Feb 11, 2020 8:19:29 GMT -5
I was able to tuck the SurgeX under the TV stand without it looking messy or even visible. Feet are now back on both amps, double stacked, with room to the front, sides, back, and top Alright!! Where there is a will, there's a way. |
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Post by rbk123 on Feb 11, 2020 9:29:13 GMT -5
Because of space, the only other way to solve this would be sell off both A150's and get a single unit 5 channel amp. But that seems like a little bit of overkill for just running Atmos speakers, no? I realize you found a solution but just wanted to mention some 5 channel options that wouldn't be overkill. You could get an A-500 which is half-height and not high powered. You could also get a UPA-500 which is also half-height, and I think a little more power, but would be great for Atmos. I thought Outlaw also made a 5 channel amp that's not as tall as the XPA line. Just some things to think about if you need space again or want to reduce your power cord count. |
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Post by audiosyndrome on Feb 11, 2020 13:17:40 GMT -5
Since we seem to be talking about a rack..... Another option would be to sit the bottom amp flat on the shelf IF YOU CAN CUT HOLES OR SLOTS IN THE SHELF TO ALLOW AIRFLOW FROM BOTTOM TO TOP. (Make sure the holes line up with the vents on the bottom of the amp.)
Note that the entire issue here is HEAT. All Class A/B amps generate some significant amount of heat... which will build up in a sealed cabinet. In fact, even with a few inches around the amp, you still cannot safely install the amps in an entirely sealed cabinet unless it's a huge cabinet. You need both space around the amps - and some way for the heat to eventually find its way out of the cabinet.
Otherwise, with no place to go, the heat will eventually build up. For clarification, this is an open AV stand without a back panel installed.
The issue is I have recently added a SurgeX rackmount style surge suppressor but the only place it can fit is on top of my two BasX A150's with the feet removed from the bottom A150, otherwise there isn't enough height clearance. I have absolutely no other room on the AV stand (right upper shelf is all components, right lower shelf is AV receiver and another component, left bottom shelf is the XPA 5, left upper shelf is the two A150s and now the surge suppressor).
dlaunde - you just need a bigger  |
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