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Uniform Amp Clamp Test


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#1 sundownz

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Posted 21 July 2009 - 10:15 AM

I am going to go through and drop the SAZ-1000D, SAE-1200D, SAZ-1500D, SAZ-2000D, SAZ-3000D, and SAZ-3500D in the Jeep and do a power clamp test so we have a rough and UNIFORM comparison between the amps in the same setup.

Test Frequency - 50 Hz
Test Load - 4x SA-12s all in parallel for 0.4375 DCR (1/2 nominal)
Test Electrical - 6x Stinger SPV-70 + 225-Amp Alternator (vehicle only at idle)

Amp gain set to 1/2 - Head Unit Sub Control 10/10 - Head Unit Volume 50/50

Setting gain to half on each amp is, of course, not an exact match... but for the sake of roughly comparing the amps I think it serves the purpose.

Posted Image

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SAZ-1000D:

Posted Image

POWER : 1040 Watts
AMP VOLTAGE (measured) : 37.2 V
AMP CURRENT (calculated) : 27.95 A
ACTUAL IMPEDANCE (calculated) : 1.33 ohms
SUPPLY VOLTAGE : 13.15 V

http://www.sundownau...0D/CIMG2498.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2499.MOV
* Voltage Measurement

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SAE-1200D:

Posted Image

POWER : 1770 Watts
AMP VOLTAGE (measured) : DID NOT MEASURE
AMP CURRENT (calculated) : DID NOT MEASURE
ACTUAL IMPEDANCE (calculated) : DID NOT MEASURE
SUPPLY VOLTAGE : 12.65 V

http://www.sundownau...0D/CIMG2513.MOV
* Power Clamp

DID NOT MEASURE
* Voltage Measurement

** FUSES BLEW - DID NOT CONTINUE TO MEASURE VOLTAGE

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SAZ-1500D:

Posted Image

POWER : 1970 Watts
AMP VOLTAGE (measured) : 49.25 V
AMP CURRENT (calculated) : 40 A
ACTUAL IMPEDANCE (calculated) : 1.23 ohms
SUPPLY VOLTAGE : 12.85 V

http://www.sundownau...0D/CIMG2493.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2494.MOV
* Voltage Measurement

---------------

SAZ-2000D:

Posted Image

POWER : 2440 Watts
AMP VOLTAGE (measured) : 56.18 V
AMP CURRENT (calculated) : 43.43 A
ACTUAL IMPEDANCE (calculated) : 1.29 ohms
SUPPLY VOLTAGE : 12.5 V

http://www.sundownau...0D/CIMG2503.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2504.MOV
* Voltage Measurement

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SAZ-3000D:

Posted Image

POWER : 3280 Watts
AMP VOLTAGE (measured) : 61.28 V
AMP CURRENT (calculated) : 53.52 A
ACTUAL IMPEDANCE (calculated) : 1.14 ohms
SUPPLY VOLTAGE : 12.1 V

http://www.sundownau...0D/CIMG2506.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2507.MOV
* Voltage Measurement

---------------

SAZ-3500D:

Posted Image

POWER : 3660 Watts
AMP VOLTAGE (measured) : 65.84 V
AMP CURRENT (calculated) : 55.58 A
ACTUAL IMPEDANCE (calculated) : 1.18 ohms
SUPPLY VOLTAGE : 11.9 V

http://www.sundownau...0D/CIMG2510.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2511.MOV
* Voltage Measurement

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SAZ-4500D:

Posted Image
* SAZ-4500D in prototype case

POWER : 4870 Watts
AMP VOLTAGE (measured) : 76.0 V
AMP CURRENT (calculated) : 64.08 A
ACTUAL IMPEDANCE (calculated) : 1.18 ohms
SUPPLY VOLTAGE : 12.25 V ***

http://www.sundownau...0D/CIMG2529.MOV
* Power Clamp

http://www.sundownau...0D/CIMG2530.MOV
* Voltage Measurement

*** - Measured different day from other amps (8-4-09), batteries had full charge so sustained less voltage drop.
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- Jacob Fuller
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#2 sundownz

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Posted 21 July 2009 - 10:43 AM

These are not necessarily definitive tests on the amps.

All applications are different and I could have probably squeezed more out of an amp here or there... but for the sake of this test I just set the gain knobs to physically 1/2 way up.

Just a rough guide to show what the amps can do!

I may go back one day and do an SPL comparison as well -- as we have seen up to 1 dB increase from the 3000D to the 3500D even though the power test doesn't seem to indicate as much. With the SPL portion I would sit down and tweak knobs until I got maximum SPL per amp.


I tested amps from smallest to largest (for the most part except 1200D was tested last) -- so the batteries did not have a complete full charge by the time I got to the big amps, just a few minutes of alternator charge time... that just means the bigger amps will produce more than posted if I had a complete charge. This was mentioned on another forum so I thought I would post it here as well.

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#3 sundownz

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Posted 21 July 2009 - 11:01 AM

SAZ-2000D Complete -- almost exactly 500 more watts as the rating would suggest even with a bit more voltage drop.
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#4 98GMC

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Posted 21 July 2009 - 11:09 AM

Now that is some very informative "real world" testing.

Great job!

Sundown FTW! :drink40:
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#5 sundownz

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Posted 21 July 2009 - 11:11 AM

Indeed :) You will note in the test that my power clamp / voltage clamps takes some time to settle in... this is because it ignores the inrush peaks that would get picked up by a "peak hold" measurement. These are much more accurate figures - about as good as you will get with clamps.
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#6 CrazyKenKid

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Posted 21 July 2009 - 11:48 AM

lol it looks like you stabbed the power and ground wires with your test props lol!! that is awesome!! (but i guess it is also the most accurate!)
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#7 Enellz

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Posted 21 July 2009 - 12:23 PM

More!!!
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<b>Alt:</b> 200a
<b>HU:</b> Pioneer P-6000UB
<b>Wire:</b> 40' of 1/0g, Big 3, etc.
<b>Amp:</b> Sundown 3KD
<b>Subs:</b> (2) 12 "AQ HDC3's
<b>Battery:</b> Redtop Front, Kinetik 2400 Back


Ca.com Refs: Slim2fattycake, matthewo, TeamH&K, DBeez, JoeRa22
PSN ID: ENellz

#8 Basshead

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Posted 21 July 2009 - 02:14 PM

i like these tests :)
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#9 takniteasy

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Posted 21 July 2009 - 02:20 PM

Well it seems i bought the perfect amp for my sub.
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#10 sundownz

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Posted 21 July 2009 - 02:25 PM

SAZ-3000D Complete.
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#11 david in germany

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Posted 21 July 2009 - 02:29 PM

Please do it with a 1200d also http://www.soundsolu...tyle_emoticons/default/fing05.gif
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#12 sundownz

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Posted 21 July 2009 - 02:47 PM

SAZ-3500D Complete.
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#13 jay-cee

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Posted 21 July 2009 - 03:09 PM

the 2000D is a beast of an amplifier :fing34:
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Headunit: Pioneer DEH-P8300UB
Highs: (2) SB Acoustics SB29RDNC-C000-4
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#14 sundownz

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Posted 21 July 2009 - 03:25 PM

SAE-1200D Added.

Produced 1770 watts but created more voltage drop than the 1500D did to produce 1970 watts.
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#15 david in germany

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Posted 21 July 2009 - 04:03 PM

SAE-1200D Added.

Produced 1770 watts but created more voltage drop than the 1500D did to produce 1970 watts.

Thank you!
:)
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