New iNuke NU4 6000 - 4 channel amp - Page 7 - AVS Forum
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Old 01-06-2015, 09:21 AM
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Originally Posted by cegadede View Post
I've bought a inuke nu4-6000 a few months ago and have been using it to power the LCR speakers on my home theater (I also have a ep4000 that powers my surrounds) and all I can say is that I'm in love with the nu4-6000! It has gobs of power, weights next to nothing, sounds great and is dirty cheap.

The only change I made in it was replacing the fans with a pair of noctuas. I can't hear the fans running even if my ears are just a inch from the front of the amp.

All in all, a fantastic buy!
Which Noctua fans did you use?

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Old 01-06-2015, 09:33 AM
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Which Noctua fans did you use?
I used NF-R8's in mine. I see they've been discontinued and the NF-A8 is the new replacement version. They are super quiet and provide plenty of output for my situation and I would guess many others.

Edit: I see that they have continued the NF-R8 production in their "redux" line.

Last edited by dtsdig; 01-06-2015 at 09:38 AM.
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Old 01-06-2015, 09:39 AM
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I used NF-R8's in mine. I see they've been discontinued and the NF-A8 is the new replacement version. They are super quiet and provide plenty of output for my situation and I would guess many others.
Hmm. But which one? There are three on Amazon.

There is the PWM, FLX and ULN versions of the NF-A8.

Thanks.

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Old 01-06-2015, 09:45 AM
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Hmm. But which one? There are three on Amazon.

There is the PWM, FLX and ULN versions of the NF-A8.

Thanks.
This is the specific one I ordered:

http://www.amazon.com/Noctua-NF-R8-8...0mm+Fan+2-Pack

They are the 1800 RPM version with 3 wires. I did not install any of the "noise lowering" resistor pigtails. I'm searching for where I put up pics of the fan installs.....
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Old 01-06-2015, 09:48 AM
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Which Noctua fans did you use?

These:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
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Old 01-06-2015, 09:51 AM
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Cool. Thanks guys!

I'll need to get two (or four) of them and another pair in 120mm size.

Noy-zee amps!!!

Erm but I have a dozen amps sooo....

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Old 01-06-2015, 10:12 AM
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Originally Posted by Scott Simonian View Post
Cool. Thanks guys!

I'll need to get two (or four) of them and another pair in 120mm size.

Noy-zee amps!!!

Erm but I have a dozen amps sooo....
The Noctua fans are highly regarded and even award winning, as you may have read. I personally wouldn't mess around with any of the cheap/generic fans that you can pick up from crap shack, BB, etc. But, I know that you will do the right thing, Scott!

I found where I had posted some pics of the fan replacements....post #141
http://www.hometheatershack.com/foru...-build-15.html

The 3 wire connectors will slide onto the bare pins that are left sticking up out of the board after you've carefully removed both the male plugs from the original fans and the female connector shroud that is supposed to stay on the board (as it is part of the original connector). Add some hot glue to keep the connectors in place on the board and tie up your newly extended fan wires somehow so they stay out of the way.
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Old 01-06-2015, 11:16 AM
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What LCR are you running. That's a lot of power.

Quote:
Originally Posted by cegadede View Post
I've bought a inuke nu4-6000 a few months ago and have been using it to power the LCR speakers on my home theater
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Old 01-06-2015, 11:23 AM
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What LCR are you running. That's a lot of power.
It's a Kef Q600C center speaker and a pair of BSA K85T for L and R. Yes, it's a lot of power for these speakers, but it's also way cheaper than dedicated home-theatre amplifiers of less power (emotivas come to mind).
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Old 01-10-2015, 06:41 PM
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I recently purchased a nu4-6000 to power the Klipsch setup in my master bedroom. I must admit it sounds great. I was so impressed I also tried this amp with my yorkville setup in the living room and they sounded downright awesome with this amp.

I take back the negative thoughts I had on Inuke sound quality with my previous setups. I dont know if I had my previous Inuke 6000s set up improperly or not but this amp is a definite keeper.

Now my only question is if a NU-4 6000 will be enough to power four Yorkville u215 speakers or if should use two inuke 6000 amps to power them. I was so shocked by the sound quality that I immediately placed my Crown XLI 3500 up for sale.
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Old 01-10-2015, 06:48 PM
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I recently purchased a nu4-6000 to power the Klipsch setup in my master bedroom. I must admit it sounds great. I was so impressed I also tried this amp with my yorkville setup in the living room and they sounded downright awesome with this amp.

I take back the negative thoughts I had on Inuke sound quality with my previous setups. I dont know if I had my previous Inuke 6000s set up improperly or not but this amp is a definite keeper.

Now my only question is if a NU-4 6000 will be enough to power four Yorkville u215 speakers or if should use two inuke 6000 amps to power them. I was so shocked by the sound quality that I immediately placed my Crown XLI 3500 up for sale.
Well, now you have me interested in maybe doing the same. I know they are awesome with base but coming from you with this makes me want to try. I'm meaning this as a compliment not negative in any way because for you to post this means it completly swayed your opinion.
The only thing i question with these is long term reliability. i just put my original box up in the attic to keep if i do need it within the next 3 years. Thanks for the post.
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Old 01-10-2015, 06:50 PM
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Quote:
Originally Posted by Swolephile View Post
I recently purchased a nu4-6000 to power the Klipsch setup in my master bedroom. I must admit it sounds great. I was so impressed I also tried this amp with my yorkville setup in the living room and they sounded downright awesome with this amp.

I take back the negative thoughts I had on Inuke sound quality with my previous setups. I dont know if I had my previous Inuke 6000s set up improperly or not but this amp is a definite keeper.

Now my only question is if a NU-4 6000 will be enough to power four Yorkville u215 speakers or if should use two inuke 6000 amps to power them. I was so shocked by the sound quality that I immediately placed my Crown XLI 3500 up for sale.
One should be plenty. U215s are very efficient.

They will take more if you want. And sometimes I think about doing it too. But the rest of my speakers can barely keep up as it is.
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Old 01-10-2015, 11:37 PM
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Well, now you have me interested in maybe doing the same. I know they are awesome with base but coming from you with this makes me want to try. I'm meaning this as a compliment not negative in any way because for you to post this means it completly swayed your opinion.
The only thing i question with these is long term reliability. i just put my original box up in the attic to keep if i do need it within the next 3 years. Thanks for the post.
Thanks for the kind words. The previous Inukes I owned were from the first batch ever released and they were full of bugs and malfunctioning parts. I've also changed my setup numerous times since I last owned them.

Whatever the case may be, this Nu4-6000 amp sounds seriously good. It's sound quality is equal to or better than my previous home amps from Emotiva, Sunfire, and Outlaw. Also sounds better than my most recent pro amp purchases from Crown, Samson, Mackie, and Peavey.

I'm interested to see how the latest batches of Inuke 6000s would compare with my Yorkvilles. So I will purchase a Inuke 6000 in a few weeks to find out. If I dont see any major difference it will still be a win-win since I will keep it to run my subs either way.
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Old 01-10-2015, 11:43 PM
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If you bridge the sets of outputs on your nu4 it will be the 6000.

The 6000 is just two 3000's in one case permanently bridged. The nu4-6000 is the same thing but not permanently bridged and with two extra gain knobs. And inputs and outputs on the back.

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Old 01-11-2015, 12:12 AM
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If you bridge the sets of outputs on your nu4 it will be the 6000.

The 6000 is just two 3000's in one case permanently bridged. The nu4-6000 is the same thing but not permanently bridged and with two extra gain knobs. And inputs and outputs on the back.
This is what I thought initially however I recently read the specs per the manual from Behringer state rougly 300 watts rms, 400 watts peak @ 8 ohms per channel and 600 watts rms at 4 ohms per channel. I was the one who circulated the bench test of the Inuke 6000 around the usual home theater websites when it was first released. So I remember rough estimates from that test was 1 kilowatt at 8 ohms per channel and 1.5-2 kilowatts @ 4 ohms per channel. So I figured the Nu4-6000 would be around 450-500 watts rms @ 8 ohms per channel and 800-900 watts rms @ 4 ohms per channel. But the specs in the manual say otherwise apparently.
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Old 01-11-2015, 09:08 AM
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The power output of a single channel on the NU3000 is about the same as the power output on a single channel on the NU4-6000.

You get 4 channels on the NU4-6000 so it is essentially like two NU3000s in one case.


NU4-6000:
8 ohms Impedance, Bridged : (2X) 1250W RMS 1500W Peak
4 ohms Impedance, Bridged : (2X) 2075W RMS 3000W Peak
8 ohms Impedance: (4X) 315W RMS 440W Peak
4 ohms Impedance: (4X) 620W RMS 820W Peak
2 ohms Impedance: (4X) 1040W RMS 1520W Peak

NU3000:
RMS (sine wave)
8 Ohm 2x312
4 Ohm 2x600 (2x375 after 3 seconds)
2 Ohm 2x1176 (2x750 after 1 second, protect after 5 seconds)
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Old 01-14-2015, 08:30 PM
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I am thinking about picking one of these up to power 4 SI-18's @2 ohms each.

Will this amp be stable enough at 2 ohms? I will do the fan mod as this will be in my living room.

My other option is to use it to power the 4 SI-18's at 4 ohms each. I haven't ordered the SI-18's yet as I am not sure if I need to power them at 2 or 4 ohms with this amp.

Thanks
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Old 01-14-2015, 08:47 PM
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I am thinking about picking one of these up to power 4 SI-18's @2 ohms each.

Will this amp be stable enough at 2 ohms? I will do the fan mod as this will be in my living room.

My other option is to use it to power the 4 SI-18's at 4 ohms each. I haven't ordered the SI-18's yet as I am not sure if I need to power them at 2 or 4 ohms with this amp.

Thanks
I have done exactly that and it worked well for the most part. I was over powering the amp when getting silly with the volume.

I added two more SI 18s and then switched to a Sanway FP 14k.

When you run the class d amps hard they per cycle off/on. I don't notice that when running the Sanway clone or older EP2500/4000. Red clip lights illuminate and then go away quickly.
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Old 01-14-2015, 08:51 PM
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I have done exactly that and it worked well for the most part. I was over powering the amp when getting silly with the volume.

I added two more SI 18s and then switched to a Sanway FP 14k.

When you run the class d amps hard they per cycle off/on. I don't notice that when running the Sanway clone or older EP2500/4000. Red clip lights illuminate and then go away quickly.
What do you consider crazy with the volume?

I don't imgine I will ever go above reference, or if I do it would be for short bursts.
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Old 01-14-2015, 09:07 PM
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The subs were probably +6-10dbs hot and the volume was at a level where my girlfriend looks at me with a WTF are you doing look. I can't recall what that ended up being.

No issues if actually watching a movie to enjoy it.
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Old 01-14-2015, 09:26 PM
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The subs were probably +6-10dbs hot and the volume was at a level where my girlfriend looks at me with a WTF are you doing look. I can't recall what that ended up being.

No issues if actually watching a movie to enjoy it.
LOL - I should be alright then
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