I have a Denon DM37. The top is covered with vents and I wondered what I can do about dust going into the unit through these vents and how I go about cleaning it? i realise I cannot cover the unit when its in use as that would be defeating the object of the vents!
Dust getting in my Hifi
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chebby
Well-known member
This really used to bug me when I had an Arcam Solo-Mini. It had vents on the top and sides and I was forever dusting it (once a day anyway) with one of those 'Pledge Fluffy Dusters' in order to prevent dust ingress.
I cut a piece of heavyweight cardboard to size to fit on top of mine (same with my Marantz amp).
It's perfectly okay to leave on for 3 hours or so at moderate volumes if you have reasonably high sensitivity speakers: mine just stayed warm and never got hot. What speakers do you have by the way?
It's perfectly okay to leave on for 3 hours or so at moderate volumes if you have reasonably high sensitivity speakers: mine just stayed warm and never got hot. What speakers do you have by the way?
I have 2 magazines covering the top of my amps.I dont even get them out when on. they dont get warm enough .
Thanks for the advice. I will make a nice little cover for the top then to keep the dust off 
I just have the standard Denon speakers.
I just have the standard Denon speakers.You could try something underneath it, something like speaker grille type material.
I know how bad dust is, my power amp runs at about 60 degrees and with the dust inside it, you can actually smell it heating up! Lovely
.
I know how bad dust is, my power amp runs at about 60 degrees and with the dust inside it, you can actually smell it heating up! Lovely
I place an A4 envelope across the top of C/A 640 amp when not in use to prevent dust entering. Always remove it when fired up as it does seem to get quite warm.
jaxwired
Well-known member
Wow, I wouldn't recommend cover vents when the amp is operating. Even if it doesn't get too hot, it's bound to reduce the life of the amp, afterall, the vents are there for a reason. I just keep a dedicated duster near my hifi and simply dust it occassionally. But covering the amp when off is certainly an option although not too attractive.
nads
Well-known member
jaxwired:Wow, I wouldn't recommend cover vents when the amp is operating. Even if it doesn't get too hot, it's bound to reduce the life of the amp, afterall, the vents are there for a reason. I just keep a dedicated duster near my hifi and simply dust it occassionally. But covering the amp when off is certainly an option although not too attractive.
Agreed
The circuit boards are just waiting to break down
Agreed
The circuit boards are just waiting to break down
chebby
Well-known member
nads:sounds like some of you lot would not take your cars out in the rain.
Not if it had hundreds of small holes drilled in the roof.
Not if it had hundreds of small holes drilled in the roof.
Play it really loud all the time so the hot air rising out of it will prevent any dust from settling!
I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
dave_k:Play it really loud all the time so the hot air rising out of it will prevent any dust from settling!
thatsitivehadenough:I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture. Seen it cause major problems on computer equipement. You could try a can of compressed air such as those used in IT.
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture. Seen it cause major problems on computer equipement. You could try a can of compressed air such as those used in IT.
karlmc:
thatsitivehadenough:I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture.
Also older unserviced compressed air systems can also blow out oil which would be a disaster.
thatsitivehadenough:I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture.
Also older unserviced compressed air systems can also blow out oil which would be a disaster.
karlmc:
thatsitivehadenough:I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture. Seen it cause major problems on computer equipement. You could try a can of compressed air such as those used in IT.
I use 'cans of air' on my servers every 12 months as the heat-sinks in particular catch loads of dust despite all the fans. Lots of dust = more heat = increased failure rates on fans and eventually the components underneath them.
Industrial air lines and their household equivalent are tempting but as has been said, there's often water in them-thur-hills so avoid if possible.
thatsitivehadenough:I suppose I could take it into work once a year and use a compressed air gun to blow the dust out! Or might that just further the ingress of dust to other parts of the unit?
Wouldn't do that as some compressed air systems also blow out a certain amount of moisture. Seen it cause major problems on computer equipement. You could try a can of compressed air such as those used in IT.
I use 'cans of air' on my servers every 12 months as the heat-sinks in particular catch loads of dust despite all the fans. Lots of dust = more heat = increased failure rates on fans and eventually the components underneath them.
Industrial air lines and their household equivalent are tempting but as has been said, there's often water in them-thur-hills so avoid if possible.
aliEnRIK:
jaxwired:Wow, I wouldn't recommend cover vents when the amp is operating. Even if it doesn't get too hot, it's bound to reduce the life of the amp, afterall, the vents are there for a reason. I just keep a dedicated duster near my hifi and simply dust it occassionally. But covering the amp when off is certainly an option although not too attractive.
Agreed
The circuit boards are just waiting to break down
Given that my 20 yr old Class A power amp, where the mosfets constantly run at about 70-75 deggrees-C, boards are absolutely fine. Your average Class-D amp running at 20-30 degrees with modern PCB's will be fine.
jaxwired:Wow, I wouldn't recommend cover vents when the amp is operating. Even if it doesn't get too hot, it's bound to reduce the life of the amp, afterall, the vents are there for a reason. I just keep a dedicated duster near my hifi and simply dust it occassionally. But covering the amp when off is certainly an option although not too attractive.
Agreed
The circuit boards are just waiting to break down
Given that my 20 yr old Class A power amp, where the mosfets constantly run at about 70-75 deggrees-C, boards are absolutely fine. Your average Class-D amp running at 20-30 degrees with modern PCB's will be fine.
I wouldn't be inclined to cover up any vents on an amp, irrespective of the conditions around it. They're there for a reason, respect it.
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