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  #1  
Old 07-22-2011, 07:19 AM
Electrodynamic Electrodynamic is offline
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Default Obsidian Class-D Amp Test Results

This was posted on page 4 of the amplifier thread, but I figured that a lot of people would miss the results if they weren't in their own thread. We are not releasing pricing or an ETA at this moment.

Testing done on our test bench yesterday -- the standard hook-up is 1/0 wire from our battery bank to some reducers for 8 awg into the amp (few inches long). Makes testing amps faster so we don't have to fight with the wires. We used the 1/0 directly on some of the final testing. Not enough time in the day to do it both ways on all amps but we are very happy so far.

We'll do some in-vehicle testing soon with more electrical backing to really show what they can do.

All tests done with my Extech power clamp meter : 380976 - Single Phase/Three Phase 1000A AC Power Clamp Meter

We did not spend a ton of time shooting for the best figures -- we just sat down and tested each one back to back to get an idea of how the prototypes turned out. I am going to upgrade the power supply FETs for production as well for reference so expect them to be even a bit stronger.

OA-1 TESTING : Rated 1200 @ 1 ohm / 600 @ 2 ohms / 300 @ 4 ohms

60 Hz @ 1 ohm --> 840 watts @ 13.8v @ 3.27 ohms actual (reducer)
50 Hz @ 1 ohm --> 1280 watts @ 13.5v @ 2.14 ohms actual (reducer)
45 Hz @ 1 ohm --> 1440 watts @ 13.3v @ 1.91 ohms actual (reducer)

50 Hz @ 0.5 ohm --> 1960 watts @ 12.65v @ 1.38 ohms actual (reducer)
45 Hz @ 0.5 ohm --> 2130 watts @ 12.2v @ 1.17 ohms actual (reducer)

OA-2 TESTING : Rated 1800 @ 1 ohm / 900 @ 2 ohms / 450 @ 4 ohms

45 Hz @ 1 ohm --> 2340 watts @ 12.8v @ 1.98 ohms actual (1/0 wire)

45 Hz @ 0.5 ohm --> 2610 watts @ 11.9v @ 1.3 ohms actual (reducer)
40 Hz @ 0.5 ohm --> 2640 watts @ 11.7v @ 1.16 ohms actual (reducer)

OA-3 TESTING : Rated 2400 @ 1 ohm / 1200 @ 2 ohms / 600 @ 4 ohms

45 Hz @ 1 ohm --> 2860 watts @ 12.35v @ 2.01 ohms actual (1/0 wire)

45 Hz @ 0.5 ohm --> 2960 watts @ 11.15v @ 1.31 ohms actual (reducer)
45 Hz @ 0.5 ohm --> 3250 watts @ 11.5v @ 1.28 ohms actual (1/0 wire)
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154.9 dB with two OA 12's at SBN 2012.

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  #2  
Old 07-22-2011, 07:23 AM
Electrodynamic Electrodynamic is offline
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Pics of all of the prototypes. Production will have our logo in the correct color instead of silver as pictured.













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  #3  
Old 07-22-2011, 08:06 AM
Andrew2944r Andrew2944r is offline
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Very nice power rating for each of the amps. Does well over rated specs!
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  #4  
Old 07-22-2011, 09:08 AM
Patrick Patrick is offline
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Lookin good!
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  #5  
Old 07-22-2011, 07:31 PM
corey0928 corey0928 is offline
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Need anyone to test any of the amps for daily lol. I'm in the market. Nice numbers for sure!
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  #6  
Old 07-22-2011, 09:50 PM
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oslouie oslouie is offline
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I'm excited for these amps but need an estimated price so I'll know how much to start saving.
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  #7  
Old 07-22-2011, 11:02 PM
gettingloud15`s gettingloud15`s is offline
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looking good awesome
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Old 07-25-2011, 12:15 AM
Juancolchado Juancolchado is offline
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Very powerfull amps!
Have you guys set price on all the amps ?
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  #9  
Old 07-25-2011, 09:57 AM
sundownz sundownz is offline
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Derrick's Explorer @ 0.33 nominal

OA-1 : 2230 watts @ 14.2v / 1.11 ohms

OA-2 : 2740 watts @ 14.2v / 1.13 ohms

OA-3 : 3810 watts @ 13.1v / 0.85 ohms (different frequency)
3680 watts @ 13.6v / 1.09 ohms

OA-3 gained the most -- moral of the story the OA amps produce about the same power with real world voltage drop due to being optimized for 12v operation.
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  #10  
Old 07-25-2011, 10:50 AM
fyerbyrd22 fyerbyrd22 is offline
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these numbers are nuts...why dont the ratings on the amp go up??...honestly, i LOVE it but i feel like people that arent aware will look at the ratings and give their alredy overpowered subs the power, and destroy them
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