Best Powersoft for 6*2151 |
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Sinai Sound
Young Croc Joined: 09 November 2009 Location: Sheffield Status: Offline Points: 631 |
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On certain gigs when outright power isn't needed through my subs, I've taken just the x4 to power a 3 mid top x 3 sub stack |
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Father-Francis
Old Croc Joined: 24 October 2007 Location: Kenya ,Denmark Status: Offline Points: 2760 |
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so the K20 is home thanks Chris for keeping your word .
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Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com, foa@sweetboxaudio.dk
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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Niice. May serve you well and long.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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Father-Francis
Old Croc Joined: 24 October 2007 Location: Kenya ,Denmark Status: Offline Points: 2760 |
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Now I don't know what this guy is doing , does anyone think this would work , I just read this in another forum ,
"I work daily with Powersoft K10 Digam, we use it primarily to pull some of our bottoms (MARTIN AUDIO WSX) and I must say it does well I have tried up and pull 5bins per channel, where it played techno for 16 hours without problems, it is truly an amplifier you can rely on, have not experienced some form of error in the in the almost 2.5 years I have work with it! so K10 think I'd be a bold invistering you possibly K8 can do it, I would say do not know so much lab'en so that I can not comment on." If this is right then I could push 4*21" per side with the K20 , Our first night out was last night , everything went perfect, 4*2150 and the amp just kept saying it was only using 3.6amperes, next time we'll try 6*2150 . |
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Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com, foa@sweetboxaudio.dk
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csg
Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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The K20 will safely drive 4 off 8 ohm drivers per channel with no drama whatsoever.
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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Father-Francis
Old Croc Joined: 24 October 2007 Location: Kenya ,Denmark Status: Offline Points: 2760 |
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Our little setup lastnight against six tubby scoops, I'l see if I can get pics of both setups , |
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Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com, foa@sweetboxaudio.dk
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U.Viktor
Young Croc Joined: 04 May 2010 Status: Offline Points: 716 |
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It is entirely untrue, sound quality drops seriously with the lower loading impedance.
We use 4 Ohm loading per channel Powersoft K10 + Martin WSX, bellow 4 Ohm such 2.6 Ohm some of the headroom noticeably lost,also SPL drops when driven with more dense signals. There is NO amp in the world which would perform as good on 2R than 4R. The difference is between the amps that few is better (but not good) and most are worse... You can not neglecting the physics to work with such big drivers, there are effects degrading damping factor (despite the tricks to compensate it) as well as parallel connected drivers have always some interaction where the source impedance to control/damp it has the most important role. unfortunately this is increased by the most with the number of parallel connected drivers, and finally affecting the phase-coherence of your radiating surfaces... Another thing is that bad idea to approach the maximum sustained <charging> capability of your amplifier, which is around 4-5KW with the Powersoft K10/20 because of loosing headroom. |
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Darkstar
Registered User Joined: 08 October 2014 Location: Italy Status: Offline Points: 326 |
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The difference in price between K10 and K20 is not huge though. Here in Italy it is now lower than a thousand euros. Edit: It's actually much less, 300 euros to be precise. Edited by Darkstar - 13 March 2017 at 11:15am |
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Bass =/= Enough
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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I agree that low impedance looses punch, but cables does a big difference as well, I used to run 3 18s per channel, but notice: 8 ohm is 12 ohm when hornloaded (in my cabs in working range), so actually I also tried firing up 6x18" on a single lab 13k channel, that worked great, but NOTICE: I had 2x 4mm2 conenctions, which adds up to 8mm2 connection to the drivers! This all leads me to a question that you might be able to answer U.victor: My powersoft repairman used to force digam7000s in bridge mode when testing them with dummyload, he said this was no problem at all and laughed at me saying they're not supposed to run bridge, so is it really safe running a digam amplifier in bridge? This way I could get some real power bridging it on two high-power drivers (loading each channel minimum 2,67 ohms) |
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toastyghost
The 10,000 Points Club Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10920 |
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They're built in half-bridge configuration as standard, so running in full bridge is actually the best way to maximise the amp particularly at infrasonic frequencies (below 20Hz)
See info in this thread: http://data-bass.ipbhost.com/index.php?/topic/470-amplifier-comparison-speakerpower-sp2-12000-and-powersoft-k20-dsp-aesop/ I wouldn't personally want to rely on it for a long period of touring but I have done it myself in some specialist acoustics testing. |
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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WHOW! I got some new testing to do now, then I can actually feed my subs 7000W per 3 pcs :-)
After all they are 1500W rms / 3000W program each, that makes 9000W per 3. Actually I don't intend to push it to the limits. So what's the danger about bridging a digam7000 (now I can't wait:-) |
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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Well ok, I tried bridging 2 yesterday at our soundworkshop!
I bridged 2 pcs on 2x4 ohm load (putting ch2 out of phase, using chb+ for speaker-) vs. one lab13k ch 2 ohms load, same subs, A/B testing But it was running late & certainly unscientific, last test of the day, all we did was to try playing about equally volume, then firing up too listen & see which one "clip" first. Digam 7000 were blinking red before my fp13000 lighted vpl 195V also 2 ohm loaded (1ch only) (it eventually blew a 13A automatic fuse) I'm not even sure if they can beat the lab! But they should, 6500W fp vs. 14000W digam, powersoft sounded nicer, more controlled, perhaps just limited, the lab was brutal, perhaps too brutal. |
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