Do you realize the pathetically small margin of harmonic distortion that is given out? And on the same hand, realize that the subwoofers natural rolloff will just take that energy and laugh at it? It is a few fractions of a watt usually...Originally posted by sforget I have been working with car audio for over ten years, and buy every issue of Car audio & electronics. These guys will tell you the same thing. basically to clear up what I meant. Underpowering speakers causes more distortion. Distortion causes the speaker to act erratically instead of following the wave of power that it is given. this erratic performance causes damage to the spider, and sometimes to the voice coil.
Yeah I choose to stay out of this one...I knew Mr. Laine wold come out with a big right hook...I caught sforget's mistake, and I knew it would be interesting, but I choose to shut my mouth, I am trying to stop arguing so much on the forum...as soon as he said underpowering causes distortion, he was screwed...Originally posted by Mark_ab
You said it. I hope the heavyweights come out (zane, Loyd, Josh - ramos already did)! I love cognative dissonance, you almost feel embarassed for him...almost.
I agree. PLUS too much power for a given box size. This causes mechanical damageOriginally posted by ramos
I have been involved in car audio for a couple of decades myself //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Although I don't buy every issue of any magazine.
I don't care what anybody will tell me. I know what I have seen with my own two eyes. Underpowering speakers does no harm. Underpowering does not cause any extra distortion. The user cranking the volume way up to compensate for the lack of power causes more distortion. Which brings us back to underpowering does nothing. Speakers are damaged by exceeding the thermal limits of the voice coil and motor assembly. Or by some yahoo poking a screwdriver or some other sharp object through the cone, dust cap, or surround. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
True left that out, my bad //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifOriginally posted by chris229 I agree. PLUS too much power for a given box size. This causes mechanical damage
this isn't true. distortion doesn't kill ANY speakers it the power that kill them. YES, tweeter get the extra power when clipping hard into distortion. This is because of the harmonics of the distortion producing more midrange and tweeter signals. It would take a 50watt or more amp to blow a tweeter of 100watts. speakers do not blow because of distortion. it's from passing the thermal limits. Clipping isn't bad for amps or speakers anyway. It the hard clipping that causes damageOriginally posted by vasyachkin about this underpowering stuff - here is the WHY part so you can judge for yourself.
if you have a system that is at least 2-way its tweeter will blow as soon as you drive the amp into distortion (clipping). this happens because distortion in itself is high frequcy signal which goes straight to the tweeter and fries it in seconds. you can fry a 100 watt tweeter on a 20 watt amp if you drive this amp into distortion. on the other hand if you have a 200 watt amp and play it at 100 watts it will not be distorting yet, and the tweeter will survive the 100 watts its rated for, while on a 20 watt amp the tweeter would be blown on just 25 watts
this is were your lost--- if a tweeter is rated for 100w then it is rated for 100w an 5w will NEVER BLOW A 100w tweeter. so are you talking about a 5w or a 100w tweeter .... yes 10W will blow a 5W tweeter. Unless the RATING are correct we can even begin to debate this.. you idea states that a 100W tweeter is really a 5W one... well call it a 5W tweeter then NOT a 100W.. then you can see 10W will kill it.Originally posted by vasyachkin that is if you put 100 watt clean power into the system the tweeter will get 5 watts average. this tweeter if rated 100watts can in reality only handle 5 watts,
correct with very good power supply isolation on all proceesors and amps and a HU with LOW source impedance. The only problem that can occur is grounding the HU in a high current path which is VERY bad as the signal is sourced to the ground AND noise induction directly into the wires. If UTP doesn't fix the noise then a balanced system willOriginally posted by Plater
Back to the post about inductive noise between cables have you ever started your car and put a scope on the battery terminals. It is a prefect 12 supply right, wrong it is the farthest thing from it. Having or not having noise in your speakers/amps. comes down to grounding and how well the input stage of the amplifier is at rejecting noise (power supply rejection ratio) oh and so i don't get attacked about input noise there is common mode rejection ratio (CMRR) on the input stage. I run $1.50 RCA cables to my amps the cheap amp hums a little the good one doesn't.