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post #1 of 40 Old 07-21-14, 09:02 PM Thread Starter
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Amp recommendation

Looking for some recommendations for a new amp to power a sub or a pair of subs. Would prefer an amp with dsp capabilities. I currently have a 2 Behringer 6000dsp's and 1 x 3000dsp's. I'm looking to swap one out and looking for some alternatives. Spec. information that I would be looking for would be a minimum of 2000 "real" watt power into either 2ohm stereo or 4ohm bridged an a high pass filter that I can adjust to at least 15hz as I run ported and passive radiator setups. Price point I'm really up in the air there. I would prefer not to run a seperate dsp like the mini dsp. I'm looking for an all in one unit. Thanks
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post #2 of 40 Old 07-22-14, 03:55 AM
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Re: Amp recommendation

If you like the Inuke's you can always get a 12000. There are a LOT of amps out there with DSP. Which one you may want will depend mainly on budget and convenience/performance. Inuke has one of the easiest DSP's to use and is very versatile.

I myself prefer to have stand alone gear so I use an external DSP and then a simple power amp. 2 ohm would be hard to beat with the Peavey IPR27500. What are you powering?

Do you need 2000watts? 3000?

There are also the high end lineup such as the Powersoft and Lab Gruppen with there very powerful built DSP options also.

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post #3 of 40 Old 07-22-14, 07:26 AM Thread Starter
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Re: Amp recommendation

has anyone bench tested the behringer 12000dsp to see wattage output? I used to use a veldyne sms-1 for tuning but found it easier to use the dsp functions in the behringer and it is just one less piece of equipment that I need. Budget I would like to keep under $3000 as I know there are good items to be had for that and like to behringer 12000dsp 1/3 that. on the wattage if I'm running 2 channels on the amp I would prefer a minimum of 2000w per channel or 3000w bridged. I will have to take a look at the 12000dsp as that has peaked my interest I new it was coming out but didn't realize it had.
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post #4 of 40 Old 07-22-14, 07:55 AM
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Re: Amp recommendation

I believe the amp has been tested. It put out 2700watts at 2ohms per channel. Found this:

Here are my lab notes from the amp testing. As I said before, this is not a comprehensive test. I just looked at what I thought was important, especially power versus time. Both amps held up pretty well with no drama. Since I don't own them, I avoided destructive tests like short circuits, blocked fans etc.

INUKE 12000 SERIAL 1301663AMT
XLR combos, not latching. Speakons and 32A Powercon.
76W idle. Rear to front air flow
Overall inverting! So they must have pin 3 "hot" on the input XLRs. AES standard not followed.
Big changes in frequency response versus load. -7dB at 20K 2 ohms. Output filter not included in feedback loop.
s/n -94dB 20-20K ref full power 8 ohms 1000W. If load removed -86dB because of FR rise.
Maximum output voltage no load 99.67VAC. This is only 4967W/2 if a load was applied. So no way the rated power could EVER be made. Limiters were OFF. We speculate that this amp may have firmware for a lower power model installed. Could not download new firmware.

Power tests
50 Hz Input signal just above clipping. approx 5% distortion 120VAC
Both channels loaded. No cutback observed over the 10 second test period. Tone burst testing did not show any very short term increase in power.
1050W/8 mains 32A
1970W/4 mains 55A
2700W/2 mains 82A I would call this a "iNuke 5400", not 120000

one channel loaded
1190/8
2307/4
3500W/2


That test was done by SpeakerPower manufacturer.

For value you already have a 6000 amp so nothing will beat that in value. If your after huge power it costs more. Clone is an option but very risky. Next is the Peavey. And you can also buy the Crest Pro lite 7.5 dsp. Then for more power you have the Speaker Power amps, Crown and QSC amps.

"Music is the space between the notes"
“[T]o talk well and eloquently is a very great art, but that an equally great one is to know the right moment to stop.”
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post #5 of 40 Old 07-22-14, 08:09 AM Thread Starter
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Re: Amp recommendation

that is some good information for me. The interesting thing is was tested by speakerpower. wonder why they posted the testing. I would assume it was to do a comparison to one of there amps. maybe ill go the way of the 12000dsp.
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post #6 of 40 Old 07-22-14, 08:25 AM
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Re: Amp recommendation

The guy was testing an amp for a forum member.(Buckman) SO he posted the info. The DIY is a small world and a lot of the great designers seem to know each other and frequent forums. Some help us and some dont. While I cant afford a SP amplifier as of now I am going to buy one as soon as I can.

I will buy one for my subwoofer amp. And for other lesser powerful amps there are LOTS of choices. SO hopefully I was able to help you.

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post #7 of 40 Old 07-22-14, 05:56 PM Thread Starter
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Re: Amp recommendation

Yes and thanks! I was looking at a couple SP plate amps about a year ago and reached out to them. The gentleman who got back to me via email was very helpful and informative. I was looking at one with the dsp function but if I recall correctly I could not get that function as I was not a manufacturer. I ended up picking up a couple of the keiga 52100 (1000w) plate amps instead. I've given those away already but they were increadibly well built amps. The ones I had were around 40lbs each. Do you know if on the rack mount amps if SP sells one with dsp capability that a DIYers could acess. Which amp were you thinking about from them.
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post #8 of 40 Old 07-22-14, 06:42 PM Thread Starter
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Re: Amp recommendation

I'm currently running all diy subs. I have 2 enclosers that are 12" drivers with dual passve radiators each. A single sealed enclosure with dual 12" subs. The subs in them are custom subs from a company called PSI case audio. I also have an acoustic elegance td12h in a sealed enclosure for music. I'm currently working on 2 new enclosures one is a dual 12" enclosure with quad 15" PR's which I will be needing an amp for and a passive radiator setup which I'm still modeling for a jl 13w7 which I bought last week. I will also needing an amp for that.
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post #9 of 40 Old 07-22-14, 08:51 PM
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Re: Amp recommendation

SP wont sell the power amps with DSP unless your a manufacturer.

Are you thinking about the AE quad 15 type enclosure?

And yes PSI makes some great PR's. I myself will probably be building a ported 15 using AE PR's in my future.

BUT back to amps if you need the power then I dont know of anything that bests the SP2 12000 amp. For money you could also own a pair of Peavey [email protected] 7500's. I have owned a lot of amps and am constantly upgrading. I dont want to upgrade any more for a LONG time. So I am going with the driver that suits me best regardless of price and buying the amp that beyond doubt will provide enough power. Everything is more expensive but at least I dont have to worry about things performing or breaking down.

I liked the Keiga plate amps also but will be buying a pair of Hypex A400 amps for my system. Can you wire for 4ohms?

The Crest CC5500 amps are very powerful also. You can find these for around 900. There are also Crest Pro 9200 amps which are still around and can be had for under 2000. Neither amp has DSP but the 9200 I believe put out about 4000watts in 2 ohms per channel when tested.

BUT realize when using 2ohms is you are easy on your subs then you will be fine with a normal power point. If you start stressing your amp a lot then you will need to upgrade to a 20amp power point all by itself to the breaker box. 2 ohm when stressed tends to be limited by the wall AC because the caps cant keep up. Many other variables also but thats the basic jist. If you can wire for 4 ohms than a CC5500 could be bridged for about 5000watts into one channel 4 ohms.

"Music is the space between the notes"
“[T]o talk well and eloquently is a very great art, but that an equally great one is to know the right moment to stop.”
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post #10 of 40 Old 07-23-14, 10:03 AM
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Re: Amp recommendation

I am using the Peavey IPR-2 5000 running 2 ohms on my dayton ultimax subs. I was also looking at the Inuke's and other options before going with the peavey and have been very happy I went the route I did. I opted to go with the non-dsp model because, from what I have experienced, the built in DSP on most rack amps is pretty limited compared to something like a mini dsp. For example, the dsp in the Inukes won’t let you eq below 20Hz...How many people are eq'ing below 20Hz? Probably not many. But that is just one example of the limited options with the built in DSP's. The stand-alone Mini DSP units are built to work with REW, are so easy to use and have all the features you could ask for in a much more user friendly setup than the built in DSP's I have seen.

I can highly recommend the Peavey IPR series as far as power is concerned. It has been an awesome amp. If you’re still looking at plate amps as well and want the built in DSP convenience, take a look at Mini DSP's plate amps. They look very interesting and I'm sure the built in DSP on those will be highly capable as well.
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