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4x v1000 and proline 3000

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NOISEYNEIGHBOURS View Drop Down
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    Posted: 12 December 2018 at 9:57pm
Want to double check...4 v1000 8 ohm with one proline 3000 or is it worth buying another proline?
"nice headphones, are they beats?"
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NOISEYNEIGHBOURS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NOISEYNEIGHBOURS Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2018 at 9:59pm
also I will have 8 v1000 (1850) soon so will need to look into buying a lighter amp, any recommendations would be appreciated! :) 
"nice headphones, are they beats?"
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Post Options Post Options   Thanks (0) Thanks(0)   Quote junoprobelaunch Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 12:26am
Absolutely a no go on running 4 V18s from a Proline. Any thread on here where the proline is mentioned will make that abundantly clear. Not necessarily entirely a power thing but more to do with the lack of clip limiters. Definitely worth either buying two or just grabbing a more powerful amp. I would probably go for the latter to be honest, plenty of good choices about for the price of two prolines although unless you're willing to pay substantially more, you'll still probably only be able to comfortably and safely power 4 V18s.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote corell Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 5:21am
i dont get it. ten thousands of people running proline on 4 or even 2 ohms over years without any problem and there is more continuous power available than any SMPS amp even double its price point. But in this forum, people seem to hate it. maybe they set their limiters wrong?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 5:31am
Originally posted by corell corell wrote:

i dont get it. ten thousands of people running proline on 4 or even 2 ohms over years without any problem and there is more continuous power available than any SMPS amp even double its price point. But in this forum, people seem to hate it. maybe they set their limiters wrong?


Yes, they probably did. Because most people seem to think a cheap DSP with only a peak limiter ser from a spreadsheet formula derived from the AES rating of the driver in free air and no enclosure rather than actually assessing how the driver behaves in the box and thermal capacity, airflow, real power, etc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulus Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 7:59am
don't do it , 1000s of threads on here about it Confused
TRENDSETTER SOUND SYSTEM
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jack_The_Ripper Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 3:16pm
I think the general idea about the Proline 3000 amps is that if Deton the original manufacturer got off their backsides and re-designed the amp so it has better clipping behavour and clip limiters as good as found on say for example QSC RMX and PLX amplifiers then the Proline 3000 might be the best cheap budget amp for subs.

But the amp has been out years and years and Deton seem as though they can't be bothered. I had two myself but sold them before they managed to someday accidentally shaft my drivers.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 4:11pm
But the point that’s being made is they won’t shaft your drivers unless you let them
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jack_The_Ripper Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 4:43pm
Originally posted by toastyghost toastyghost wrote:

But the point that’s being made is they won’t shaft your drivers unless you let them

Yes but also customers have reported that sound quality degrades before clipping occures on the Prolien 3000 meaning the amp probably has no headroom like quality amplifiers do. Plus the Proline 3000 takes out drivers with even the slightest bit of clipping which is easy to happen. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote corell Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 6:08pm
The latter one is because it has 2000W (@ 4 Ohm) sine wave output power before clipping which is just to much for most of the drivers and something not usually available in amps of this price range. It is not the compressed waveform cause by clipping which damages drivers.
Other amps, especially budget SMPS amps, when driven near its limit /clip will be heavily restricted by the long term capabilities of the power supply. It is not uncommon to have a 500W SMPS in a 2 x 1500W amp.
So when you hit clip lights, you are looking at 1500W peaks with <250W RMS. Easy for a common 4" VC chassis.
With the proline however, 1500W peak could be much, much more RMS level. There is no "crest factor" built in the amplifier itself so if you play the "right" (or lets say "wrong" for this instance") music material, drivers will burn.

Deton does not bother because the proline sells amazing in germany at least.
With the number of prolines sold, it is easy to get the impression that it fails often because of personal reviews, while in reality, its failure rate might be no more than any other amp.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hi grade Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 6:52pm
Clap
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jack_The_Ripper Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2018 at 7:32pm
But some people who've used the amp say once it clips it behaves strangely, ArthurG said "Proline, as well as all Thomann amps, has only a simple & cheap peak stop limiter that is rubbish. Lot of DC and square wave coming out when it clips. It put stress on the amp (the bipolar transistors dont like it) and on speakers. You get what you pay for...".

NickyBurnell said "Because when they clip, just once, they cause a lot more damage than other amps in the same scenario. This is not hearsay or demonetization. I've owned one and the way it went from OK to nasty noise is not right. BPSound had one in install and it killed a load of Wembley B Lines and it was behind a Cloud Limiter.  The ones I was involved with were horrid. Maybe they are not all created equal?"

So maybe he's right, maybe Deton's consistency is appalling some are ok, some are bad.


Edited by Jack_The_Ripper - 13 December 2018 at 7:36pm
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