It has been a while since I have posted here - my original EP4000 fan swap thread
got stickied so I thought I would post a part 2 of the new iNuke series using a fresh out of the box NU1000 I received this week in the mail.
Upon being powered on the NU1000 had a definite fan noise while sitting on my kitchen table. I was hoping for an audible drop similar to what the EP4000 fan swap had improved on the original EP stock fans. The fan swap I made in the pair of EP4000s I am still using resulted in a very significant db drop yet never seemed to jeapordize the ability of the EP4000s to run cool (even while wired in 2 ohm stereo for extended durations).
The photos attached show the iNuke NU1000 on my kitchen table with the top being removed and the stock fan being swapped for an Adda Inc AD0812XX-D71 (Jameco part # 2095365......approx $8 ea).
Swapping the fan out on the iNuke amp was easier than the EP fans - 6 screws on top and then remove the 4 screws on the back of the amp holding the external fan guard.........then it is a simple matter of soldering on the new lead to the pigtail from the plug and the new fan bolts into place perfectly.
The bad news......the new Jameco fan IS quiter than the stock fan but it is NOT as significant of a drop as the improvement seen in the EP4000 fan swap. At best, I see the Jameco part as a temporary improvement.
If others have swapped their fans in the iNuke series and have had better results and more significant fan noise reductions please post your fan part # and vendor!
I have yet to test this amp, it will be powering a Dayton Reference Series RSS390HO-4 15" sealed sub. I will post my impressions of this amp in the next couple of weeks as the new system gets pieced together.