For the last time, PLEASE: clipping does NOT blow speakers/subwoofers

[PV Audio 5,000+ posts]

It just doesn't, and don't believe anyone who tells you it does. Seen 4 references to this shit in the last 30 minutes alone.

Click to read more...

 

[btdickey99 5,000+ posts]

wow.....what does it do then?

 

[Lucid15 10+ year member]

I sold my amp to Kieth H and he said it was stuck in clipping mode.. so it blew his Type R's

 

[Hydrastas 10+ year member]

i would like to know what causes subs to crap out, too lazy to hit search atm

 

[revrider1 5,000+ posts]

Lol, at post 3

 

[btdickey99 5,000+ posts]

i would like to know what causes subs to crap out, too lazy to hit search atm

I love your setup.... plz dont blow your subs....too nice to replace

 

[PV Audio 5,000+ posts]

wow.....what does it do then?

Probably should have put that in the first post. All that clipping is is the transformation of the signal's waveform from sinusoidal to rectangular. What that means is that if you picture the sine function from 0 to 2pi, instead of a curve, make it 2 right angled boxes with dimensions of pi x 1. The integral of the function aka, the amount under the curve is the amount of power being transferred. As you can imagine, a square wave has more power underneath the curve than a sinusoidal curve does. As a result, a clipped signal CAN send more power to a speaker than normal, but clipping is not the cause of blowing the speaker.
There are only two ways to blow a driver: mechanical failure or thermal failure. The former is due to over excursion of some form from some cause (usually improper enclosure), and the latter is usually from overpowering the speaker. If you feed a Type-R a fully clipped signal from a 300 watt amp, it will not reach thermal failure in the least. It might sound like shit, but it won't cause the speaker to fail. The driver doesn't know what it's being sent, all it does is get fed power and turn that into sound. Whether or not the signal is distorted is irrelevant.

 

[PV Audio 5,000+ posts]

I sold my amp to Kieth H and he said it was stuck in clipping mode.. so it blew his Type R's

You mean protection mode? That is caused by the amplifier being pushed too hard which causes clipping, but unless the amplifier had enough power to blow the speakers anyway, that wasn't the cause.

 

[btdickey99 5,000+ posts]

interesting...so my gain control is going all the way up, full blast now....//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[PV Audio 5,000+ posts]

interesting...so my gain control is going all the way up, full blast now....//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Do you not understand what I wrote? A clipped signal does not affect a speaker any differently than the same signal of a sinusoidal waveform.

 

[btdickey99 5,000+ posts]

Do you not understand what I wrote? A clipped signal does not affect a speaker any differently than the same signal of a sinusoidal waveform.

1) the roll of the eyes was sarcasm.....

2) I have no amp in my car right now....//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[PV Audio 5,000+ posts]

Clipped signal:

Normal signal:

Notice the plateau on the first image. If the power underneath the curve is the same, the speaker behaves the same regardless of the shape of the curve. It's only when the amount of power causes the speaker to overheat or exceed Xmech.

 

[btdickey99 5,000+ posts]

so basically you are stating that the only way that "clipping" affects the sub is if it overpowers the sub causing it to over heat?

 

[maldecido33 10+ year member]

Good post; are you EE?

 

[PV Audio 5,000+ posts]

Good post; are you EE?

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif Yes.