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Post by ThomasW on Mar 12, 2006 12:08:37 GMT -7
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ken
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Posts: 187
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Post by ken on Jun 21, 2006 16:00:49 GMT -7
Hi Thomas and members, l did this mod the other day to my ep2500, l had trouble getting the original fan ( Bi-Sonic 24v 0.24A ) to quieten down much........ l started off with the 100 ohm resistor , it would'nt run....then a 86.then a 68..........ended up able to run on a 50ohm resistor but was still too loud . l ended up getting an aftermarket one from a local supplier here that was 24v . 130mA ..........this runs np with the 100 ohm resistor and is a lot quieter and l can only hear it running when the reciever is at say -46 db and l sit about 5' from the amp. l did reverse the fan while l was at it and it appears to work well that way....at one stage l even contemplated putting 2 12v fans in , locating the other up the front somwhere and would've done that if l was'nt happy with the amount of air being moved after this mod....anyway so far so good.........l'll give it a good run this weekend and make sure it cools ok.... Next project whenl get some money will finally be my be 4 x 18 ava ib.....just need the mdf  |
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Post by ThomasW on Jun 21, 2006 18:27:50 GMT -7
Good news..... What specific fan did you buy? |
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ken
Full Member
Posts: 187
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Post by ken on Jun 22, 2006 18:14:20 GMT -7
Hi Thomas, the fan is a Sirocco .....l've never heard of these, it's made in Taiwan , it's only a sleeve bearing one but runs very smooth atm compared to the noisey stock one ( the stocky was ball bearing too! ). We watched a a movie last night after l got home from afternoon shift and you could hear it purring along during quite scenes in the flick ( romance / comedy type ), l guess it's roughly the same noise output as my sonyhs60 fan in low lamp...so l'm happy with that...if l wanted l could do more resistance to it , but atm it's doing a good job so l not concerned.......l can see why people put them in another room when their stock standard!! Thanks to you Thomas and other forum members we can get around things like this easily with good advice Cheers Ken |
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Post by crackyflipside on Aug 13, 2006 20:31:09 GMT -7
l can see why people put them in another room when their stock standard!! I already have my soundproof AV closet all planned out ;D Noisy equipment (other than speakers and sub) drives me nuts! |
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Post by formica on Aug 14, 2006 8:00:10 GMT -7
What specific fan did you buy? I thought i'd post a quote from John Gordon (QSC) who provided the following information in reference to upgrading their 24V fans: All the fans are roughly the same noise level, though they all make a different pitch sound that is perceived differently, or louder. The fans are in order of what I think the quietest ones are, with the first being the quietest:
FAN / Model
* Delta AUB0824L
* Delta AFB0824L
* Panaflo (Panasonic) FBA08A24L
* Papst TYP8414L
* SanyoDenki 109RO824H402
If you are going to replace the fan in your PLX, DCA, CX, or PL2 QSC amplifiier, important things you must consider are: Fan must be 24V (not 12V). Size is 80mm x 80mm x 25mm. Quiet fans are usually rated 23dB give or take. Most fans come without connectors, so you will have to reuse or purchase a new connector. I did that Mod to my QSC but didn't bother on my EP2500 as i also installed it in my AV closet. ROb |
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Post by 3beanlimit on Nov 12, 2006 6:07:25 GMT -7
I've searched high and low for these two fans. Delta AUB0824L * Delta AFB0824L I found a site I can get them from if I buy 100 or more of them.  |
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Post by Darren on Nov 12, 2006 14:05:16 GMT -7
If you are trying to quiet a Behringer just buy this fan:L Panaflo FBA08A24L1A, 24V, 80x25.5, 21dB Digikey P/N P9739-ND, $8.25 Get it at www.digikey.com. It's 21db and you can't hear it beyond a couple feet and you really have to strain to hear it closer than 2'. |
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ken
Full Member
Posts: 187
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Post by ken on Nov 13, 2006 15:27:55 GMT -7
Darren, hows that panaflow fan going mate? ..my cheapo l put in has got noiser so l'm going to have to look at somthing else..probably a 12v job as 24v over here is scarce ......just have to work out the resistance etc to accomodate a 12v fan......unless l run 2........hmmmm
Cheers ken
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Post by 3beanlimit on Nov 18, 2006 21:30:46 GMT -7
If you are trying to quiet a Behringer just buy this fan:L Panaflo FBA08A24L1A, 24V, 80x25.5, 21dB Digikey P/N P9739-ND, $8.25 Get it at www.digikey.com. It's 21db and you can't hear it beyond a couple feet and you really have to strain to hear it closer than 2'. Thanks for the heads up! |
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Post by 3beanlimit on Nov 28, 2006 6:50:07 GMT -7
If you are trying to quiet a Behringer just buy this fan:L Panaflo FBA08A24L1A, 24V, 80x25.5, 21dB Digikey P/N P9739-ND, $8.25 Get it at www.digikey.com. It's 21db and you can't hear it beyond a couple feet and you really have to strain to hear it closer than 2'. It worked like a champ! Again, thanks for the link! |
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Post by Darren on Nov 28, 2006 9:20:09 GMT -7
Darren, hows that panaflow fan going mate? ..my cheapo l put in has got noiser so l'm going to have to look at somthing else..probably a 12v job as 24v over here is scarce ......just have to work out the resistance etc to accomodate a 12v fan......unless l run 2........hmmmm Cheers ken The fan is working very well, no complaints at all. It is used all day every day pretty much as the system is the main TV room and my wife works from home. Still quiet as can be. |
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Post by nik1818 on Feb 24, 2007 13:42:46 GMT -7
i hope its an 80mm fan. if thats the case, i will be running down the street to tigerdirect and picking up some super quiet ball bearing fans. i'm also putting them behind a wall lined with foam to hopefully dampen the noise.
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Post by nik1818 on Mar 4, 2007 10:04:43 GMT -7
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Post by chrisbee on Mar 4, 2007 11:25:36 GMT -7
The link is to a variable speed 12 Volt fan.  |
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