well the orion 1200d is definitly under rated.....lanzar too??wtf

[BassAddictJ]

did a lil bench testing today with the good old ohms law and mathmatics.....

Now one reason these watts are so high is because we were useing bass mekanik test tones and so i'll go and measure with differant kinds of music later, but the results were better than i expected...

i have a 1 ohm setup so essentially all i have to do is square the AC voltage.... average voltage was 45.8volts, and toped out at 50 volts on the dot.

SO this means my rms with the tones was 2097.64 watts and my max was 2500watts............. not bad for test tones on a 1200wrms rated amp.....



on a side note my friends lanzar 1800D (argueably amoung the best CHEAP/BUDGET amps u can get) was under rated too.
@ 2 ohms it's rated 1100 watts i think, anyhow, it rms'd at 1600w and maxed at 1900w @ 2ohms?!?!? (i forgot the exact AC voltages but i remember those #'s) (he has a 2 ohm setup) not bad....... (and for his it was voltage voltage squared, then divided by 2)......

he has 1 huge diesil truck battery (1190 cca i think) with stock alty and i have 2 red tops with stock alty, both of us have a 1 farad cap and 4 gauge. the input DC voltage for the amps was between 12.8 and 13.1 volts when the bass dropped....

[Decipha]

not bad makes me want to get a new orion amp

[tommyk90]

Is efficiency figured into that equation at all?

That seems AWFULLY high for a 1200d. I know they are underrated, but those numbers are ridiculous.

[InhumanAcura]

im calling bs...are the clamp and dmm true rms? which clamp?

[BassAddictJ]

i know these #'s are sickly high.... i'm not sure about effiency,how is that calculated? is it the RMS rating over the max rating? if so that close to 84% but i'm not sure is that is the correct way to do it.

sooner or later we'll get some video of this and u guys can see the #'s....

i'm still in disbelief with these readings.......

[BassAddictJ]

im calling bs...are the clamp and dmm true rms? which clamp?

clamp and dmm? inlighten me.....

i used a basic radioshack digital multimeter that i got at a pawnshop, retails for like 80 at radioshack and it's tested and reads accurately

[InhumanAcura]

i'm still in disbelief with these readings.......

you should be, because they are inaccurate...prolly be a better idea to get it straight before you post a bunch of bs...the formulas have been posted alot, on just about every forum...run a search

clamp-clampmeter
dmm-digital multi-meter

[BassAddictJ]

all i used was a digital multimeter,i do not have a clamp meter but i will GLADLY make a video of these readings for u and post them.......

just out of curiousity, is there anythign differant the clamp meter will read besides high level amperage (my dmm does do anythign over 10 amps but thanks to math we dont have to measure amps)

[I want SExxx]

Why don't you just multiply the ouput voltage (AC) and amperage. That will give you a true power rating.

[DBfan187]

should've used an oscope(no clipping), then a DMM

[BassAddictJ]

my dmm does not go up higher than 10 amps and i dont wanna fry or f' up my dmm......i can try and bribe a stereo shop worker with 5 bucks to hook my setup up to an ampmeter that will measure these kinds of amps but until then all i hav to use is my lil dmm...

all i have to work with is AC volts and ohms.

how much does impedience rise when it does (i've heard a little here and there about impedence rise but i am not fully knowledgabl about this occurance) I'm sure even a slight rise in impedence will effect the output of watts so i'm going to measure that too, i'll be back within an hour with results.

FYI on my dmm for ohms it is off by .6 ( so when i measure ohms i always have to subtract .6) BUT the volts for AC and DC, and current too, have been tested and reads those accurately. We hooked the dmm to a variety of sources that either have another digital readout and it IS accurate. the ohmsjust happen to be a lil off with this unit

[BassAddictJ]

loading the video now so yall can DL it.
in the video you can see the amp put out around 50 volts AC.

as for the ohms i wasnt sure what to make of the readings. not hooked up to the amp it says 1 ohm but when hooked up to the amp it jumped around like crazy from 60 ohms to 7 ohms to .9 ohms and back............weird....

ftp://upload.realmofexcursion.com/vi...1ohm-setup.mov

In the video It's the neighbors son is holding tester tips on the output terminals, other neighbors son is controling the deck up front while i film. deck is turned up to 80% volume. There are 3 tracks played, a 50-40Hz tone, a 40-30Hz tone, and a 30-20Hz tone. you can see when the track changes because the volts jump down real quick then back up.

let me know what you guys think.......i'm open to all opinions but keep the slander to a minimum please

[Raven]

Well, the tests I perform are calculated as P= V^2 / O, where power (P) is equal to volts (V) squared divided by the impedance (O).

My old PA amp that did 600 RMS could hit 45 volts (Roughly 1200 watts @ 2 ohm) RMS if you clipped it to hell. That doesn't mean it's capable of that kind of power, it's just a number. In reality I think I could only get it to right around 600 RMS. I don't remember for sure.

The same way, my MTX will read well over 80 volts (3200 watts @ 2 ohm) with all the settings maxed out. I would never try to let it play using those specific settings, but hey, it's a high number. I can't actually bench the amp on my setup because of the current draw.

EDIT: I should also mention ANY clipping with send DC voltage which will make a DMM measuring AC **** itself and give a false reading. If that's not obvious by now.

[BassAddictJ]

i am testing my amp pushign it to it's limits without clipping. the number is high, very high, in fact so high that i brought it to you guys to see if there's anything missing in the equation. Granted i dont have all the tools nessessary to test the amps but even though ohms law states what it does, is there anythign im missing that would cause me to get higher number? impedience rise maybe? i dont know, thats why you guys have been informed about this

[BassAddictJ]

...any comments?