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ok this maybe a stupid question but oh well
today in LA class i was really bored so i started thinking, how can a 2 way speaker be 4 ohm? are both coils(woffer and tweet) 2 ohm and then wired in series? or does the resistor have somthing to do with ohms? and what would happen if you disabled the tweet? would the speaker become 2 ohm? or 8? or what? thanks alot guys and gals [img]graemlins/thumb.gif[/img] |
Both drivers are 4 ohm. The tweeter and woofer play different frequencies so the amplifier does not 'see' both of them at the same time.
It is the job of the crossover to make sure the amp does not see both drivers at once. |
WOW that explains quite a bit, thanx Dukk. so im assuming the crossover is the resistor/cap, is that right?
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yepper here is a preety good page on passive crossovers. explains quite a bit.
What happens to the Impedance? Am I putting speakers in Parallel? If you pick the same cross-over points for both the high-pass and the low-pass filter, then when you connect these together to the same power amp output, the impedance is the same as if it was a single speaker. Why is this? Since the speakers are now conducting on a limited frequency range, as long as those ranges do not overlap, the net effect (as far as your power amp can tell) is that its only a single speaker load. You are not putting speakers in parallel. |
Originally posted by WD21: WOW that explains quite a bit, thanx Dukk. so im assuming the crossover is the resistor/cap, is that right? |
ok well thanks alot everybody, helps out quite abit.
One more thing, when a amp says that it will put out say 500WRMS at 1000hz, will the amp put out more or less power at a lower freq (say 55hz)? |
A good amp will put out the same. A lesser quality amp may put out less.
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