Most common car audio myths...
01-28-2004, 10:20 PM
#71
Guest
Posts: n/a
Yah it's just FS that does that 
In fact it is very true that runnning clipped signals through mids and tweets is a large percentage of the reason for those speakers being blown. It's better to have the power and not need it than to need the power and not have it.
Oh and I don't think subs are blown with clipping that often, they can handle the extra heat etc. alot better than mids and especially tweets.
In fact it is very true that runnning clipped signals through mids and tweets is a large percentage of the reason for those speakers being blown. It's better to have the power and not need it than to need the power and not have it.Oh and I don't think subs are blown with clipping that often, they can handle the extra heat etc. alot better than mids and especially tweets.
01-29-2004, 07:28 PM
#75
electron flow IS current flow...
you're thinking of conventional (+ to -) theory, versus electron (- to +) theory... conventional is the old theory, that was disproven when we discovered that electrons are negatively charged and that they, not protons, move to create the current flow.
you're thinking of conventional (+ to -) theory, versus electron (- to +) theory... conventional is the old theory, that was disproven when we discovered that electrons are negatively charged and that they, not protons, move to create the current flow.
01-29-2004, 10:15 PM
#77
2000 Watt CAFz'r
Join Date: May 2000
Posts: 2,406
Originally posted by Sassmaster:
I've found that the whole "Under powering speakers blows them" is a common sales gimmick for future shop. they use it to try to sell you bigger amplifiers, home recievers etc. they also really push high current stuff (and as everyone should know, more current = more heat in the coil, and more loss the longer your wire is)
I've found that the whole "Under powering speakers blows them" is a common sales gimmick for future shop. they use it to try to sell you bigger amplifiers, home recievers etc. they also really push high current stuff (and as everyone should know, more current = more heat in the coil, and more loss the longer your wire is)
Anyone that thinks that they can't blow a speaker underpowering it has no idea on how clipping works. When you turn up the volume you are sending voltage (music) to your speakers. If you turn it past the point where the amp can't produce power that amp will keep trying to make power and it will continue to try and go louder, there for causing the signal to clip. Once you start sending a clipped signal to speakers, it's only a matter of time till it will cook the speaker. The more power you run to the speaker the cleaner power you have which means your chances of running a clipped signal decreases. The more voltage your deck has on it's preouts the lower you can have the gain on the amp therefore matching up the gain path of your system which also helps to maintain a clipping free system.
If you think that this is a selling technique by FS or any other company then you are seriously uneducated and you need to find some education and probably shouldn't be buying electronics cause you don't understand how it works.
Real world analogy........you have a car with 6 speeds on the tranny. Can you do 120 km in first gear ? YEP, what is going to happen to the tranny ? It will smell really bad and die.......If you shift into higher gears will the tranny run better ? Yep, less chance of cooking the tranny......
Tranny = speakers
Shifting = Amp
Think about it........
[ January 29, 2004, 11:24 PM: Message edited by: Tim Baillie ]
01-30-2004, 08:13 AM
#79
50 Watt CAFz'r
Join Date: Jun 2003
Posts: 372
Why is this so hard to understand? It's not the clipping that ruins speakers! It's the over powering of the speaker caused by the clipped signal that does. If a speaker can handle more power than what comes from the clipped signal then it could play it all day long. But it's the actual over powering from the clipped signal that ruins the speaker and not the clipping itself. View this link and see the topic "underpowering" for a complete explanation and lets finally end this stupid debate.
http://www.bcae1.com/
http://www.bcae1.com/
01-30-2004, 09:28 AM
#80
Guest
Posts: n/a
I read the BCAE thing.. And he did a good job, but missed some fundamental points in terms of speaker operation.
Clipping does everything he said it would, but, it also doesn't produce speaker cone movement, it is a DC voltage. When you apply DC to a speaker, it tries and move to a fixed excursion point and stay there. One of the reason speakers handle as much power as they do is because they have incorporated extensive airflow designs to keep the voice coil cool. When the speaker isn't moving, it isn't cooling. More accurately, when it isn't moving efficiently and cooling efficiently.
Clipping does everything he said it would, but, it also doesn't produce speaker cone movement, it is a DC voltage. When you apply DC to a speaker, it tries and move to a fixed excursion point and stay there. One of the reason speakers handle as much power as they do is because they have incorporated extensive airflow designs to keep the voice coil cool. When the speaker isn't moving, it isn't cooling. More accurately, when it isn't moving efficiently and cooling efficiently.
