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Powering eight 186 horns

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Futendra View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Futendra Quote  Post ReplyReply Direct Link To This Post Topic: Powering eight 186 horns
    Posted: 06 March 2017 at 4:08pm
We are going to build eight 186 horns loaded with RCF LF18G401's.

The RCF's are 900W RMS and 1800W Program.

I was thinking of powering them with two Behringer iNuke NU6000's with two horns (4 Ohm, 1800W RMS) in parallel on each channel output (2x 4 Ohm, 2200W RMS)

But now I have found a second hand Behringer iNuke NU12000. This amp could power four horns (2 Ohm, 3600W RMS) per channel output (2x 2 Ohms, 6000W RMS)


Now my question is if it is "safer" to use the 2 NU6000's at 4 Ohms, or use the NU12000 at 2 Ohms. Also, are they even 2 Ohm stable? Do I need the extra power the NU12000 can deliver? Is my information even correct?


Edited by Futendra - 06 March 2017 at 4:10pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote osse Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 4:27pm
What you also should consider is that the NU 12000 seem to need 32A to work properly for maximum performance(which are rare, 16A is much more common). 2x NU6000 would probably be my choice based on only this (have tried neither)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Futendra Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 4:33pm
Originally posted by osse osse wrote:

What you also should consider is that the NU 12000 seem to need 32A to work properly for maximum performance(which are rare, 16A is much more common). 2x NU6000 would probably be my choice based on only this (have tried neither)


I didn't know this. I am probably going for 2x NU6000. Any clue if you can use them mono if you insert just one input?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 5:26pm
go for 2 nu6000s if NUs are your choice.. any amp can be used running 1Ch only...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 6:34pm
I would always pick two amplifiers running at a higher impedance rather than one running at a low impedance irrespective of manufacturer or model. Redundancy.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gen0me Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 7:31pm
Originally posted by osse osse wrote:

What you also should consider is that the NU 12000 seem to need 32A to work properly for maximum performance(which are rare, 16A is much more common). 2x NU6000 would probably be my choice based on only this (have tried neither)

And how 2x6000 will take more from instalation than 1x12000 on 16A socket?Or is it about cable?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 70,s hero Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 9:14pm
Originally posted by njw njw wrote:

I would always pick two amplifiers running at a higher impedance rather than one running at a low impedance irrespective of manufacturer or model. Redundancy.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 9:27pm
Labgruppen? Not used one myself be interested in any comments.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 10:17pm
Originally posted by SouthwestCNC SouthwestCNC wrote:

Labgruppen? Not used one myself be interested in any comments.


"Thin" IMHO No balls, and that was running Quakes. Told Yamaha T5 is similarly so, but not heard.


Edited by nickyburnell - 06 March 2017 at 10:21pm
It's everything, not everythink!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Darkstar Quote  Post ReplyReply Direct Link To This Post Posted: 06 March 2017 at 11:08pm
As I've hinted previously, I have four G401's ran by a FP14000 copy feeding them 3600w (170V VPL) and I would definitely not say it sounds "Thin".

Also: still have plenty of headroom on the amps, running @ 4 ohm, so next to no heat is generated even when driving both channels for a full gig. 2 ohm operation would require 32A for sure though.

Edited by Darkstar - 06 March 2017 at 11:12pm
Bass =/= Enough
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Post Options Post Options   Thanks (0) Thanks(0)   Quote corell Quote  Post ReplyReply Direct Link To This Post Posted: 07 March 2017 at 12:12pm
i run 8 x 18G401 BPH of two TSA 4-1300. One bass per channel is perfectly fine! Have also tried them with Lab FP6400 and other "pro" amps and there were no significant differences.
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