Of course he does and I agree with him too...but that doesn't change the fact that Binks test, while consistent across all the amps he tested, only does 20-1kHz-20kHz at 4ohms/channel, 120 VAC and 96 VAC.
//////// Reality Check #1 /////////
I'll give you clues why Bink didn't do a 2 ohm/ch amplifier tests.
Just a note..... After finishing the measurements at 4 ohms, I used a non contact infra red thermometer to measure the temperature on the case where the heat sink is bolted to the cover. The thermometer was reading between 110 degrees and 115 degrees. This is with an unmodified fan system, BTW.
Just an update.............. I am in the process of testing at a 2 ohm load, both channels driven, at 1 KHz. In 20 minutes of test time, I have blown the dedicated 20 amp breaker 5 times attempting to get the amp up to clipping and just take a reading of voltage and distortion. In that time the case of the amp has registered 125 degrees fahrenheit on the top cover. So far it will only do approx 500 watts at .5% distortion. I am going to let it cool for a few hours and rerun the test to see if it will meet specs. Very disappointing so far.
It took less than 30 seconds for the amp to go from 70 degrees fahrenheit to 110 degrees when under power.
The circuit breaker on the amp kept blowing just as I would aproach ful power in 4 ohm bridge mono.
re: EP2500 test @ 4 ohms
Some interesting notes. The digital ammeter connected to the amplifier registered 17.2 amps at full power 1 KHz. The thermometer registered 158 degrees fahrenheit on the top case of the cover where it is attached to the heat sink. It was cookin'.
these amplifiers will not run with a sine wave at full power at 1 KHz for more than 5 minutes under any load, 2, 4, 8, or bridged! They are just not made to run like that.
The amp would only run for less than 20 seconds in that mode with a pure sine wave!
[bridged mode @ 4ohms]
//////// Reality Check #2 /////////
1. When I tested my PLX @ 4 ohms bridged and pushed it hard, it went
up in smoke.
2. When I tested my Crest 10001 @ 2 ohms bridged [yes it's rated for this],
it ran like a champ all day, but after pushing it harder, it went up in smoke.
//////// Reality Check #3 /////////
I would post more comments made by Chuck by I know people won't read
it. In fact, I don't think many people read Chucks comments, rather they
just looked at his charts and said .... Amazing..!
Want proof ?
Right after Chuck tested the EP1500 and EP2500 and he posted those
comments, it seems that nobody digested the data properly. Some people
replied as follows;
These tests are very impressive, Chuck. Those Behringers seem to be made from very hardy stuff. They are really amazing values, especially the 2500.
nice indeed Chuck!!! Very impressive and more impressive in person!!
Ask yourself is it really amazing?
//////// Reality Check #4 /////////
--> Why didn't Bink do a 2 ohm/ch amplifier tests.
I think the politically correct answer is there wasn't enough time to
test all those amplifiers in one day.
But I do think that if Bink attempted a 2 ohm/ch test, you might find some
unhappy owners going home with blown amplifiers