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    sundownz's Avatar
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    Sundown Amp Clamp Tests

    I did this a while back so some new stuff is not in there obviously... but a good reference none-the-less.

    Once the new SAZ line is all done I will go back and do something like this again.

    ----------

    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.



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

    SAZ-1000D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2498.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2499.MOV
    * Voltage Measurement

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

    SAE-1200D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2513.MOV
    * Power Clamp

    DID NOT MEASURE
    * Voltage Measurement

    ** FUSES BLEW - DID NOT CONTINUE TO MEASURE VOLTAGE

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

    SAZ-1500D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2493.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2494.MOV
    * Voltage Measurement

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

    SAZ-2000D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2503.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2504.MOV
    * Voltage Measurement

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

    SAZ-3000D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2506.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2507.MOV
    * Voltage Measurement

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

    SAZ-3500D:



    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.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2510.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AMP_POWE...0D/CIMG2511.MOV
    * Voltage Measurement

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

    SAZ-4500D:


    * SAZ-4500D in prototype case - this is NOT the production 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.sundownaudio.com/misc/_AM...D/CIMG2529.MOV
    * Power Clamp

    http://www.sundownaudio.com/misc/_AM...D/CIMG2530.MOV
    * Voltage Measurement

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

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

    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 in my initial post so I thought I would post it here as well.







  2. #2
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    Re: Sundown Amp Clamp Tests

    Why discontinue the 4500? Just when I can run it.



    2014 Ford Fusion
    All stock everything.

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    Re: Sundown Amp Clamp Tests

    Quote Originally Posted by DCtC View Post
    Why discontinue the 4500? Just when I can run it.
    I'm sure he took that under heavy consideration before deciding brah.




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    Re: Sundown Amp Clamp Tests

    So where's the oscope?



    SPL-Lab REP

    Want an SPL meter for a lot less than the cost of a Termlab, but just as accurate and has more features and support? PM me.

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    Re: Sundown Amp Clamp Tests

    sleeping from al that power



    HU:Pioneer 80-PRS
    Fnt&Rear Spkrs: 8 Neo-Pro-v.2 soon
    Mid Amp: Sax-50.4& Sax-200.4
    Subs: 4 Sundown Audio 18s Z v.4 tuned at 15hrtz
    Amp: 2*NS-1s
    batts:,xs2500,xs3000 x20
    wire:0g OFC Audio Technix
    alt: 3 HO alts from??? from mechman or singer?

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