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post #1 of 25 Old 10-22-2018, 03:43 PM - Thread Starter
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Inuke NU6000DSP Fan Replace Failed (Shutdown) Help Wanted

Hello All,

I wanted to do the Fan Replacement in my Inuke 6000 and after use the fan recomended in different post here my Inuke still shutdown.

The tried a couple fan from other member recomendations as below:

#1 Noctua NF-A8 FLX Premium : With this one my Inuke shutdown at -50 in volume
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

#2 Then I tried BestBuy Fan as someone said was good in his Inuke, this one shut down it couple minutes with -60 as volume

#3 I installed this one by recomendations Vantec Stealth SF8025L, with this one shutdown at -25 volume
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Please Note: If I put back the original fans my inuke didn't shutdown anymore...

Any recommendations for fan to try?


Thanks in advance
Jose
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post #2 of 25 Old 10-22-2018, 06:47 PM
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Quote:
Originally Posted by jabe00 View Post
Hello All,



I wanted to do the Fan Replacement in my Inuke 6000 and after use the fan recomended in different post here my Inuke still shutdown.



The tried a couple fan from other member recomendations as below:



#1 Noctua NF-A8 FLX Premium : With this one my Inuke shutdown at -50 in volume

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1



#2 Then I tried BestBuy Fan as someone said was good in his Inuke, this one shut down it couple minutes with -60 as volume



#3 I installed this one by recomendations Vantec Stealth SF8025L, with this one shutdown at -25 volume

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1



Please Note: If I put back the original fans my inuke didn't shutdown anymore...



Any recommendations for fan to try?





Thanks in advance

Jose


I'd look for something rated over 35 CFM and/or 3000 RPM.

Part of the issue with the stock fans was that they had a lot of mechanical noise. You don't necessarily need an ultra-low-speed fan to have an improvement.
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post #3 of 25 Old 10-22-2018, 07:06 PM
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Any recommendations for fan to try?
Yeah, the originals.
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post #4 of 25 Old 10-22-2018, 07:44 PM
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I have some very quiet aftermarket fans in both my inuke 3000 and 6000. One set is Antec the other some no-names. My amps have never shut down. Did you keep those cardboard deflectors in place that aim the air towards the board?
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post #5 of 25 Old 10-22-2018, 08:15 PM
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Do the fans start when amp is turned on?

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post #6 of 25 Old 10-22-2018, 08:36 PM - Thread Starter
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Quote:
Originally Posted by rhodesj View Post
I'd look for something rated over 35 CFM and/or 3000 RPM.

Part of the issue with the stock fans was that they had a lot of mechanical noise. You don't necessarily need an ultra-low-speed fan to have an improvement.
Thanks, I'll try to see what I can get with those references.

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post #7 of 25 Old 10-22-2018, 08:36 PM - Thread Starter
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Originally Posted by johnson636 View Post
Yeah, the originals.
That's the ones I'm trying to change because of the noise.

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post #8 of 25 Old 10-22-2018, 08:39 PM - Thread Starter
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Originally Posted by DaleNixon View Post
I have some very quiet aftermarket fans in both my inuke 3000 and 6000. One set is Antec the other some no-names. My amps have never shut down. Did you keep those cardboard deflectors in place that aim the air towards the board?
Cardboard deflectors? What do you mean, attached is the picture from inside my Inuke, so there is not any cardboard, weird.

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post #9 of 25 Old 10-22-2018, 08:41 PM - Thread Starter
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Yes, they turn on as soon as I turn on the amp.
Quote:
Originally Posted by Nalleh View Post
Do the fans start when amp is turned on?
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post #10 of 25 Old 10-22-2018, 08:48 PM
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There seems to be different versions of iNUKEs. I believe the older ones have the fan ducts to direct air over the board.

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post #11 of 25 Old 10-22-2018, 08:53 PM - Thread Starter
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Originally Posted by CrusherW9 View Post
There seems to be different versions of iNUKEs. I believe the older ones have the fan ducts to direct air over the board.
Yes, maybe

Thanks

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post #12 of 25 Old 10-22-2018, 09:20 PM
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Originally Posted by jabe00 View Post
Yes, they turn on as soon as I turn on the amp.

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Then that makes no sense. I have 5 Nu6K’s all with Notcua’s and none of them has ever shutdown, and i run them hard. The fans on my 2 Nu6K DSP’s don’t even start until 5-10 minutes after turn on.

What load do you have on each channel?

Or does it shutdown even with no speakers connected?

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Then that makes no sense. I have 5 Nu6K’s all with Notcua’s and none of them has ever shutdown, and i run them hard. The fans on my 2 Nu6K DSP’s don’t even start until 5-10 minutes after turn on.

What load do you have on each channel?

Or does it shutdown even with no speakers connected?
I have two UM18-22




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post #14 of 25 Old 10-22-2018, 10:42 PM
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Originally Posted by rhodesj View Post
I'd look for something rated over 35 CFM and/or 3000 RPM.

Part of the issue with the stock fans was that they had a lot of mechanical noise. You don't necessarily need an ultra-low-speed fan to have an improvement.
If the inukes are anything like the ep4000 the stock factory fans have a pretty high static pressure rating, which the after market "quiet" fans can't match.

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post #15 of 25 Old 10-22-2018, 11:23 PM
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The iNuke fans use sleeve bearings, which are louder at high speeds than ball bearings. Try to match the specs with a replacement that uses ball bearings.

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post #16 of 25 Old 10-23-2018, 02:41 AM
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Originally Posted by jabe00 View Post
That's the ones I'm trying to change because of the noise.

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I very much understand what you're trying to do, but it seems as if you're willing to wreck your amp in the process.

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post #17 of 25 Old 10-23-2018, 04:33 AM
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there's another thread by user "cuballs2" on here (can't post link, thread title "Inuke nu6000DSP fan direction results") where he did some tests and determined it runs a little cooler if you reverse the fans to pull air out. He had power cycles with the Noctua fans in the default blowing position. It's worth a shot. Also you didn't really mention where you have your amp. I'm guessing not a rack since you're annoyed enough to replace the fans. Is it in an "entertainment center", or on top of/below other equipment?
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post #18 of 25 Old 10-23-2018, 06:07 AM
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What direction are the fans blowing? By default the inukes want the fan to blow air back to front. It would be easy to install them like normal PC fans to exhaust air, which is incorrect. Also did you install any of the Noctua low noise extensions as those will further reduce the speed of the fan, which is not something I'd recommend.

As mentioned look at the spec's of the stock fan and look at both the CFM AND the mmH2O specs and try to match as close as you can with whatever replacement you use.

In regards to the EP4000 comment earlier, I modded my EP4000 to use a Noctua fan and its been running fine for the last 3 months or so....

I also know quite a few folks using the Notcua fans in the 3000DSP and 6000DSP.

And are you sure the iNuke is shutting down due to heat and not some other signal related issue?

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Quote:
And are you sure the iNuke is shutting down due to heat and not some other signal related issue?
I believe he stated the amp doesn't shut down if the original fans are reinstalled.

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post #20 of 25 Old 10-23-2018, 07:42 AM
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Cardboard deflectors? What do you mean, attached is the picture from inside my Inuke, so there is not any cardboard, weird.

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Actually my inuke 6000 is the same as yours now that I double-checked. It was my single-fanned inuke 3000 with the deflector/duct. That one is from 2014.

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post #21 of 25 Old 10-23-2018, 08:53 AM - Thread Starter
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Quote:
Originally Posted by ttamez View Post
there's another thread by user "cuballs2" on here (can't post link, thread title "Inuke nu6000DSP fan direction results") where he did some tests and determined it runs a little cooler if you reverse the fans to pull air out. He had power cycles with the Noctua fans in the default blowing position. It's worth a shot. Also you didn't really mention where you have your amp. I'm guessing not a rack since you're annoyed enough to replace the fans. Is it in an "entertainment center", or on top of/below other equipment?
I'll try reversing the fan's directions, I'll post the results.
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What direction are the fans blowing? By default the inukes want the fan to blow air back to front. It would be easy to install them like normal PC fans to exhaust air, which is incorrect. Also did you install any of the Noctua low noise extensions as those will further reduce the speed of the fan, which is not something I'd recommend.

As mentioned look at the spec's of the stock fan and look at both the CFM AND the mmH2O specs and try to match as close as you can with whatever replacement you use.

In regards to the EP4000 comment earlier, I modded my EP4000 to use a Noctua fan and its been running fine for the last 3 months or so....

I also know quite a few folks using the Notcua fans in the 3000DSP and 6000DSP.

And are you sure the iNuke is shutting down due to heat and not some other signal related issue?
They are blowing air inside, I double checked that when iinstalled.
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I believe he stated the amp doesn't shut down if the original fans are reinstalled.
That's correct, the amp doesn't shutter m shut down with the originals iinstalled.

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post #22 of 25 Old 10-23-2018, 09:01 AM - Thread Starter
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I have this

https://www.amazon.com/dp/B01LW1Q429..._3q0ZBbZ6693E4

on top of my Marantz receiver, I'll remove the top cover and I'll put this on top of the inuke to try to cooler and also add this can measure the temperature maybe I can see how hot it get before shut down.

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post #23 of 25 Old 10-23-2018, 09:37 AM - Thread Starter
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I'll try first reversing the air flow from the fans, I'll let you know the results

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post #24 of 25 Old 10-23-2018, 09:44 AM - Thread Starter
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Quote:
Originally Posted by ttamez View Post
there's another thread by user "cuballs2" on here (can't post link, thread title "Inuke nu6000DSP fan direction results") where he did some tests and determined it runs a little cooler if you reverse the fans to pull air out. He had power cycles with the Noctua fans in the default blowing position. It's worth a shot. Also you didn't really mention where you have your amp. I'm guessing not a rack since you're annoyed enough to replace the fans. Is it in an "entertainment center", or on top of/below other equipment?
Hi,

The inuke is in a custom made shelf or something like that, attached is a picture

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post #25 of 25 Old 10-24-2018, 09:56 PM
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I reversed the fans and use 120s with adaptors

https://www.avsforum.com/forum/showt...php?p=44724305

Last edited by idex; 10-24-2018 at 09:59 PM.
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