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<blockquote data-quote="keep_hope_alive" data-source="post: 7461315" data-attributes="member: 576029">most people are happy with&nbsp; more power.&nbsp; the simple solution is to bridge the amp and power the crossover normally.the #1 reason i think bi-amp is helpful is time alignment, level control, and/or equalization - i.e. control.&nbsp; if you can EQ each output separately and control level separately, you can improve the overal sound quality and sound stage.&nbsp; most passive crossovers are in the 2kHz range, which means your tweeters are responsble for localization information based on arrival time.&nbsp; as such, some T/A can make a huge difference in the sound stage.&nbsp; bi-amp gives you that extra control.&nbsp; but if you have T/A, EQ, and level control - you should also have crossovers that would eliminate the passive crossovers completely.active is efficient in that the amplifiers are only responsible for a portion of the signal bandwith, and power is not lost to the passive crossover components.&nbsp; this uses less power overall compared to bi-amp.that said, there are some very well designed passive crossovers that include shaping networks, zobel networks, and filters to improve the speaker response.&nbsp; also, some are very well designed so that the blend between the two drivers is very nice and a flat response is realized.&nbsp; when you go active, you&#039;re now responsible for those crossover points and you really need an RTA to monitor the roll-off and constructive and destructive interference that will always happen.</blockquote>

[QUOTE="keep_hope_alive, post: 7461315, member: 576029"] most people are happy with more power. the simple solution is to bridge the amp and power the crossover normally. the #1 reason i think bi-amp is helpful is time alignment, level control, and/or equalization - i.e. control. if you can EQ each output separately and control level separately, you can improve the overal sound quality and sound stage. most passive crossovers are in the 2kHz range, which means your tweeters are responsble for localization information based on arrival time. as such, some T/A can make a huge difference in the sound stage. bi-amp gives you that extra control. but if you have T/A, EQ, and level control - you should also have crossovers that would eliminate the passive crossovers completely. active is efficient in that the amplifiers are only responsible for a portion of the signal bandwith, and power is not lost to the passive crossover components. this uses less power overall compared to bi-amp. that said, there are some very well designed passive crossovers that include shaping networks, zobel networks, and filters to improve the speaker response. also, some are very well designed so that the blend between the two drivers is very nice and a flat response is realized. when you go active, you're now responsible for those crossover points and you really need an RTA to monitor the roll-off and constructive and destructive interference that will always happen. [/QUOTE]

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