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<blockquote data-quote="zako" data-source="post: 7896121" data-attributes="member: 629735"><p>What's going to be your active crossover/processor? The full benefits of going active are realized when gains are set properly, as well as time alignment and equalization to suit car's characteristics. In my experience, the improvement from setting up a good processor (specially self tuning) such as Pioneer DEH-80PRS will dwarf those of buying expensive speakers and running with no good processing. When going active, you may be better served by using car-audio oriented speakers and tweeters, but without the supplied crossovers. For one, tweeters and woofers usually fit in factory locations and have 4ohm impedance. If you need a drop in replacement for the Kappa tweeters, consider the Seas neodymium tweeters with aluminum dome sold by madisound. For the price, they are decent tweeters and perfect for car audio, with usable frequency range extending down to 2KHz with a sharp crossover, if you need to take them so low.</p><p></p><p>As for amplification, just use any amplifier you want. Tweeters are not very demanding of power. Even head unit amplifier could work, though I am not sure about 8 ohm tweeters, as that will result in your tweeters seeing maybe 7-8watts RMS at most with a typical head unit amp. (I am not sure what the poster above meant by "bridging" a head unit amplifier. I have never heard of head unit amps being bridged). The only precaution that should be taken is to prevent the tweeters from being destroyed by an accident, such as if you send a full range signal to them. In order to prevent this from happening, it's recommended to wire a capacitor with an appropriate value inline with tweeters. It will act as a high pass filter with 6db slope, with crossover frequency dependent on the capacitor value.</p></blockquote><p></p>
[QUOTE="zako, post: 7896121, member: 629735"] What's going to be your active crossover/processor? The full benefits of going active are realized when gains are set properly, as well as time alignment and equalization to suit car's characteristics. In my experience, the improvement from setting up a good processor (specially self tuning) such as Pioneer DEH-80PRS will dwarf those of buying expensive speakers and running with no good processing. When going active, you may be better served by using car-audio oriented speakers and tweeters, but without the supplied crossovers. For one, tweeters and woofers usually fit in factory locations and have 4ohm impedance. If you need a drop in replacement for the Kappa tweeters, consider the Seas neodymium tweeters with aluminum dome sold by madisound. For the price, they are decent tweeters and perfect for car audio, with usable frequency range extending down to 2KHz with a sharp crossover, if you need to take them so low. As for amplification, just use any amplifier you want. Tweeters are not very demanding of power. Even head unit amplifier could work, though I am not sure about 8 ohm tweeters, as that will result in your tweeters seeing maybe 7-8watts RMS at most with a typical head unit amp. (I am not sure what the poster above meant by "bridging" a head unit amplifier. I have never heard of head unit amps being bridged). The only precaution that should be taken is to prevent the tweeters from being destroyed by an accident, such as if you send a full range signal to them. In order to prevent this from happening, it's recommended to wire a capacitor with an appropriate value inline with tweeters. It will act as a high pass filter with 6db slope, with crossover frequency dependent on the capacitor value. [/QUOTE]
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