AMP TEST

I notice on one of the last amp test there were some things that made me go hmmmmmm, as many of you know i worked for a mfg for three years, one of my duties was to test amps for max power and low ohms, i mean most amps will do .5 .33 or even 1/4 ohm

the test are not that hard, but there are tricks that a mfg can do and do to beat a 4 ohm rating, more like they don't tell you how to get max power out of an amp? but they will tell certain people lol.

well i see missing test factors??? can we get a 2nd Lab to comfim Test??? or see more factors from the 1st Lab????

p.s. in the 1980s and Orion 225 hcca could do 1/4 ohm stereo, what makes people think today a mordern amp can't do less????

Ok I thought I knew where you were goin with this but I dont really know what you mean.

But I did see some curious things about the previous tests as well.

To be honest though man?, I think its a waste of time trying to go after this because this situation will keep arising year after year.
We need to abandon the 4ohm rule and go by highest RMS rating regardless of impedance.

What tests are you talking about and which lab did them? I can probably answer most all of your questions on this.

i am not saying which test to keep from upsetting people and sponsors but i just notice some missing criteria that would have a outstanding effect on a 4 ohm rating.

THE LAST TEST POSTED WAS THE CACTUS AMP

QUAD THE FACT THAT YOU CAME ON HERE AND SAID SOMETHING PUTS YOU OUT THERE BROTHER WHEN ALL YOU HAD TO DO WAS CALL RALPH BUT YOU MADE IT PUBLIC SO YOU REALLY DONT CARE WHAT THE COMPANY THINKS AT ALL.

My statement is for any amp that was tested like the last one???

ARE YOU ASKING ME HELL I DONT KNOW WHAT YOU MEAN 99% OF THE TIME

How are Amps tested from the Lab Resistor/coil or Reactive with a Sub or moving Mass??

what is the Rca input Voltage??? and was the item tested from .2 volts to 4-8 volts rca input you can swing 600-800watts right there?

what was the remote wire voltage??? 12 volts did you know some amps witll drop another 600-800 watts with 14-16 volts on the turn on lead??? some will smoke though.

want more??

LOL URE CRACKING ME UP I KNOW LINE VOLTAGE WICH IS THE CORRECT TERM WILL INCREASE SOME AMPS, AND REMOTE TURN ON VOLTAGE ALSO HELPS IN SOME AMPS.


SO YOUR ISSUE IS THAT THATS NOT APART OF THE CRITERIA FOR TESTING AMPS.

DO ME A FAVOR STAY ON YOUR COUCH MAN THATS WHAT YOUR GOOD AT

sanman wrote:

LOL URE CRACKING ME UP I KNOW LINE VOLTAGE WICH IS THE CORRECT TERM WILL INCREASE SOME AMPS, AND REMOTE TURN ON VOLTAGE ALSO HELPS IN SOME AMPS.


SO YOUR ISSUE IS THAT THATS NOT APART OF THE CRITERIA FOR TESTING AMPS.

DO ME A FAVOR STAY ON YOUR COUCH MAN THATS WHAT YOUR GOOD AT

so your saying that amps that will step out of there 30% rating should be allowed??? because just the two items i listed would do that and there is more.

and if you think i stay on the couch you really don't know Quad!!

plus Companies use to pay me for these facts what Factory pays you????

Are those company out of business?

NO FACTORY PAYS ME UNCLE SAM DOES

WE HAVE A SYSTEM LIVE WITH IT CAUSE UNFORTUNATELY YOU CANT WIN OR EVEN BE COMPETITIVE WITH IT SO YOU WANT IT CHANGED

COUCH PATATO LOL

No some Amp companies are. but what does that have to do with the fact hat there are missing test results to check for Max 4 ohm ratings, and again that with any test that did not include or show some of the items i have stated???

OUCH!!!!

WE ARE NOT MISSING TEST RESULTS DUDE THEY TEST THE AMPS AS PER THE CRITERIA USACI WANTS THEM TESTED AT OR ARE YOU NOT ABLE TO COMPREHEND THAT!!!!!!!!!!!!!!!!

So what does these testing facilities gain from not sharing all the info?

sanman wrote:

NO FACTORY PAYS ME UNCLE SAM DOES

WE HAVE A SYSTEM LIVE WITH IT CAUSE UNFORTUNATELY YOU CANT WIN OR EVEN BE COMPETITIVE WITH IT SO YOU WANT IT CHANGED

COUCH PATATO LOL

we will see plus i have run the same amps for years now except for next year, and i must be on to something again with you resistance to follow up on why there are not complete test results???

Are u saying u going to compete next yr?

quad box wrote:

How are Amps tested from the Lab Resistor/coil or Reactive with a Sub or moving Mass??

what is the Rca input Voltage??? and was the item tested from .2 volts to 4-8 volts rca input you can swing 600-800watts right there?

what was the remote wire voltage??? 12 volts did you know some amps witll drop another 600-800 watts with 14-16 volts on the turn on lead??? some will smoke though.

want more??

The amps are tested with a resistive load. It would be hard to duplicate a reactive load in a lab because the impedance would not remain the same during a sweep. That is why a resistive load is used as a standard of mearure.

Input voltage is not a factor in reality if the "gain" is properly set. Everyone in this industry should know that the gain control is not a volume knob, but simply a match setting to the input voltage. It can only swing in the the input voltage varies during the test. The use of Cogent's measuring equipment prevents that.

You can ask me all the questions you want about amplifier testing. I am very apart of that in what I do. The biggest factors when measuring lower impedances is having the current to feed the amps. That is one of the major causes of bogus results. The power supply used at Cogent is a 3 phase power supply about the size of lil' scrappy ... it was the only lab capable of testing the RF 30K amp.

Side note: Cogent Audio labs is the lab that gets called in to settle court cases. They are considered the standard. They were co-creaters of CEA standard for testing amplifiers. I can actually go on and on about them. Or if you are in town next time, I can probably get you a tour.

Don't sweat results coming from Cogent Quad, you can take my word that their results are legit.

WHY THE fornicate ARE YOU ASKING ME ARE YOU RETARDED WAIT DONT ANSWER THAT

IM NOT RALPH THATS WHO YOU SHOULD BE ASKING OR ARE YOU SCARED

ALL I SEE IS YOU ASKING ME MEANINGLESS Dung Pile THAT I CANT ANSWER JUST TO EGG SOMETHING ON

POTATOE

QUAD ALWAYS SAYS HE IS GOING TO COMPETE HE ONLY IS SUCCESSFULL WITH GETTING ON HERE AND STARTING Dung Pile LOL ALWAYS HAS BEEN, BUT HE WILL HAVE 1 MILLION EXCUSES OF WHY HE CANT MAKE SHOWS.

TECH114 wrote:

So what does these testing facilities gain from not sharing all the info?

it not shareing info it's not doing a complete test???

let me try this, i have a Quad Audio 300.1 ok 4 0hm rating 300watts 14.4 volts.

600watts 2 ohm 14.4

1200 watts 1 0hm 14.4

does this amp fit 0-600???

TECH114 wrote:

So what does these testing facilities gain from not sharing all the info?

Everything is pretty much tested with all the amps that usaci sends in with some minor exceptions like shorting, and reliability factors. The results published is what USACi has requested.

GABE I LOVE YOU MAN

Guys relax, I have witnessed the testing myself, everything is being tested that we need to give us our official ratings. Trust me all is well and legit.

sanman wrote:

QUAD ALWAYS SAYS HE IS GOING TO COMPETE HE ONLY IS SUCCESSFULL WITH GETTING ON HERE AND STARTING Dung Pile LOL ALWAYS HAS BEEN, BUT HE WILL HAVE 1 MILLION EXCUSES OF WHY HE CANT MAKE SHOWS.

i made every local show we had out here!!! which was Nothing!!! i travel to Az for my points!! i don't have a Goverment job any more like you so Money is not coing in on the 1st and 15th like many others cash is tight, and with a new sponsor next year i hope to make more shows.

I KNOW THE LAB IS IN YOUR TOWN MAN, AND YOU HAVE INSIDE KNOWLEDGE YOU ALSO KNOW THE GAME SOME WANT THINGS CHANGED IT HAPPENS THIS TIME EVERY YEAR

Side note: If you want to blame anyone you can blame me. I am the one who got USACi hooked up with Cogent. Cogent the lab that pretty much gives most of the manufactures their unbiased official CEA ratings. It is who we use. Yes we test in-house much like every other manufacture does, but we use them (an independant lab) for the official ratings that CAN BE TAKEN TO COURT if ever disputed.

Blame for a good cause..

Gabe Sanchez wrote:

TECH114 wrote:

So what does these testing facilities gain from not sharing all the info?

Everything is pretty much tested with all the amps that usaci sends in with some minor exceptions like shorting, and reliability factors. The results published is what USACi has requested.

so were are the results from the Lab i don't see one for Rca input at more that one level??

i don't see one for turn on lead input???

i don't see one for 16 volts 18 volts???

i don't see one for freq from 20hz to 120hz????

what was the power of any tested amp with thses factors????