General SPL General discussion of Sound Pressure Level topics.

some more amplifier tests

Old Feb 4, 2005 | 07:54 AM
  #11  
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Originally posted by ShockingCanada:
i seriously deoubt it is a monoblock its more likely an internally summed two channel
sorry...whick one of the 3 amps are you talking about? the mmats 3000.1? if so it is a dual power supply amplifier but it is a single mono block... don't quote me on this one yet...but I can find out more info from the manufacterer...if you already know for a fact..then please share with me also.


and Lessy...if you bring it down I can test it...
I only have the ability to test at 0.5 ohms in this set up at the moment

[ February 04, 2005, 08:59 AM: Message edited by: MTA ]
Old Feb 4, 2005 | 09:28 AM
  #12  
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hey MTA.. if the mmats can be strapped, i would be interested ina pair.,. but would it be dbdrag legal to do that, as they were not ment to be strapped in the first place? also i heard they are very picky with voltage drops?


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Old Feb 4, 2005 | 12:34 PM
  #13  
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yes the MMATS 3000.1 is no more a monoblock than a earthquake D2 or D3 is...they have two channels internally that are bridged and therefore cannot be strapped. If it was a strappable amp trust me MMATS would not be keeping it on the downlow
Old Feb 5, 2005 | 10:48 AM
  #14  
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I have been iin contact with Bob at American Bass and a few Europeans and the 200.1 NEEDS to be played at lower impedences. They told me that there is a lot more power to be had with the amp.
Old Feb 5, 2005 | 05:28 PM
  #15  
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Originally posted by ShockingCanada:
yes the MMATS 3000.1 is no more a monoblock than a earthquake D2 or D3 is...they have two channels internally that are bridged and therefore cannot be strapped. If it was a strappable amp trust me MMATS would not be keeping it on the downlow
thanx for the info...Ill be talking to Mmats later next week for more info anyhow.

NorthernSPL ...cool..Ill see if I can get some lower loads for it to do some testing
did you get any testing done yet??? need to know results [img]smile.gif[/img]
Old Feb 6, 2005 | 01:33 AM
  #16  
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Couple questions...

What was the box impedance rise at?

Did you see what the min impedance was for each amp?

Did you bother seeing what power they do over 16 volts?

good tests though [img]smile.gif[/img]
Old Feb 6, 2005 | 10:18 AM
  #18  
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Originally posted by Rip Rock:
Couple questions...

What was the box impedance rise at?

Did you see what the min impedance was for each amp?

Did you bother seeing what power they do over 16 volts?

good tests though [img]smile.gif[/img]
I only tested what I was able to test ..that is why I gave all the test info I could right in my first posting..impedance rise you can find..that is why I posted the voltage and current readings.... Z=V/I
the DC resistance measured was 0.5 ohms
in most tests the impedance did not rise over 1
ohm
Old Feb 6, 2005 | 11:59 AM
  #19  
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"American Bass 200.1 ---burped
test 1 55.8Volts 64.1Amps =3576.78watts 153.8db

after doing more testing with volume found that the lower volume worked better even though the power output was lower it measured higher

test 2 54.4Volts 60.5Amps =3291.20watts 154.02db"

Yeah i did also notice this in the short amount of time that I played with a few (8) of them. At finals with Chris' van Corey from Superior Sounds showed me the "prime" input voltage to run them at, anything more or less and you get nothing compared to when you have it right on. Chris Cecco will know forsure but what I remember was volume 17 on an Alpine 9815 was the volume and then you turned the gain on the amp up until you hit a certain output voltage and that is the perfect spot for them. I just cant remember what it was. That could be the reason for your findings, maybe the output was over that voltage and as you turned the volume down sure the power went away but the power was cleaner and more usable??? I am just speculating but ask Chris for what the voltage is and I think you will see even more results from the VFL 200.1.
Old Feb 6, 2005 | 05:56 PM
  #20  
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I was planning on running more tests with it this week including running them down a bit lower, maybe down to 0.4 or 0.33 ohms as I just remembered that I do have 4 more of the same drivers at the shop...but im not sure I will get accurate results as my box only holds 4 woofers.
I will also try to write down RCA voltage input into the amplifier for each one..and if I can do a little a$$ kissing maybe Mr.Lambert could bring over some of his 8volt batteries to run the amps at 16 volts and get those results up also

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