How To Clamp/ Meter your Car audio subwoofer amplifier for power output

Step by step for using meters on your car audio amplifiers to check what they're power RMS output truly is. This will also show you how to figure what your box rise is also..

Category:

Autos & Vehicles

Tags:

• step
• by
• process
• Car
• audio
• clamping
• metering
• testing
• for
• true
• RMS
• power
• output
• on
• subwoofer
• amp
• amplifier
• sound
• system
• loud
• team
• banghard

[JonDeth]

You're still doing the math wrong.

What you just measured was a full wave peak to peak voltage output and amperage draw. After doing your voltage x amperage math, you divide that factor by 2.8 to know True RMS. Don't believe me? Look it up or ask any seasoned electrician.

Or just buy a True RMS Meter. The clamps are True Meters but only true the amperage draw. So you're actually at about more like 1200 watts RMS. Between test tones and knowing the math, THIS is how companies give us specs.

[mikehoncho119]

@JonDeth Really?Ever heard the saying I'm a Master of Engineered Custodial Arts or a janitor if you want to be a dick about it? Your being that dick about it!Dude I have a CEET degree.I know what RMS means. ROOT MEANING SQUARE. I know the .707 rule for voltage. Company's spec given thou are cal. though in avg not RMS. Look, If you ever decide to go to a car competition, This is how they will meter your amp in the lines to make sure your in the right class to compete in. thanks for input tho

[JonDeth]

@mikehoncho119 the only one being a dick is you. I merely pointed out your mistake and you lashed out like a child. You measured peak to peak voltage and your "degree" is rather worthless since you clearly do not understand what that means.

You measured full wave voltage.

RMS is used to reflect reliable power in laymen terms. If you are at the peak of your power and need to demand more, where will it come from?

Point blank, you're wrong.

[mikehoncho119]

@JonDeth relax kid,The point was your being to literal. Not that your being a dick. Second I do this as a hobby, you have the time and want to build High current amps, go ahead. Yeah, your right in title should be how to clamp/meter. problem is for common purpose most all company's have rated what they are off avg not true calculated rms values, True Competition amps another story.

For common purpose clamp/testing is what the vid is for

[zigzag4200000]

how many rms are you subs?

[mikehoncho119]

@zigzag4200000 2000 watts RMS

[gnarlycs]

@mikehoncho119 exactly 2k RMS, huh? right

[JonDeth]

I'll actually be fair about this anyway. RMS is irrelevant in the power your amp is producing because it's audio. You want to know peak to peak.The speaker will never demand more power because it's a passive component and the final stage of the circuit cascade.

RMS power is only relevant in what the amp is drawing not producing. If a song comes on that's louder than the last and your amp needs headroom, ideally you have it set so it's running at RMS draw and can draw into peak occasionally.

[JonDeth]

@mikehoncho119 a kid is someone that tells outrageous lies and calls someone names for trying to steer them towards the correct path.

The best way to know your amps potential output is to hook it up to a oscilloscope while running a static test tone through the amp. I guess they didn't teach you that in college? lmao!

[JonDeth]

@mikehoncho119 in fact if you are a college educated adult with an engineering degree, it's rather unlikely you would be using commercially built equipment let alone behaving with such immaturity. You measured your equipment's highest level of operating performance under ideal conditions.

So if you hit that cascade with a multiplier taking it beyond those peak to peak specs under ideal conditions, you'll cook it.

This is why RMS is important and you clearly do not understand that.