Y'all were beating the snot out of that sub. Geez.

One little tip when testing amps for power...

Play a tone at (or near) tuning. This will result in the lowest reactive. You may hove gotten close to the 4 ohm with a lower note.

One of the things I hate about the AMM-1 is that you can't see the reactive and power at the same time. Your rise kept climbing because of the voice coil heating up. If you came out of pause instead of that painfully slow roll, you would have seen less voltage drop and more power (probably). But doing it slowly like that allowed you to see the voltage right where the peak/hold stopped climbing- so that's good.

I clamped a 1000/1 about a million years ago and got like 1,700volt/amps. This was before I had a scope and shit though so that was probably clipped to shit. And at like 15v starting.

I don't recall it being "small" by any means though. It's a big bish for a 1k.

And by their nature, regulated amps are less efficient than non-regulated. But 65% seems awfully low.

 

Your absolutely right taylor. I was talking to Tony about having the impedance on the dyno screen as well. I keep forgetting to grab my extra dmm while doing these so that i can measure them at the same time. The dyno run was ran after the coils were warm and the the impedance run was while they were completely cold. I probably should have gave them a bit of time to warm up first. We weren't really out there to do this test we were setting gains and crossovers and decided to record enough to put together a dyno video.

I will say the 65% seemed low but I don't really know what else to say. The meters seem to be pretty accurate and consistent. Neither one of them are Fluke quality but neither are el-cheapos either.

And as far as size. Its not small like say the audiopipe mini or any of the brazilian boards but in comparison to the saz amp it seemed much smaller. Long but skinny.

As for the frequency. I brought a USB drive with every frequency on it but the car owners radio wouldnt read it for some reason so we just use the SMD DD1 disk that I had with me which basically means 40hz or nothing lol.