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<blockquote data-quote="thch" data-source="post: 4876027" data-attributes="member: 562032">my best estimate would be for the 75x4.&nbsp; typically such amplifiers would be bridgable to 150x2 @ 4ohm, while the 150x2 (@ 2ohm) would probably be 75x2 @ 4ohm.&nbsp; further, 4channel amps tend to be very portable and useful across multiple setups as you always need to power 2 to 4 speakers.the ability to actually bi-amp is available, in both active and passive methods.&nbsp; signal processing can be applied to each speaker seperately, with time delay being a feasible use to correct for the distance difference between your ear and the tweeter, and your ear and the midwoofer.you could also apply a second filter to the mid/tweeter to reduce out of band signals further.&nbsp; i would suggest tuning such filters somewhat distant from the component&#039;s passive crossover frequency, to avoid affecting it.because of the peak-power benefits, running the speakers bridged may provide some benefit, though it may not be noticable.&nbsp; my suggestion is to run wires for biamping, then try both configurations.</blockquote>

[QUOTE="thch, post: 4876027, member: 562032"] my best estimate would be for the 75x4. typically such amplifiers would be bridgable to 150x2 @ 4ohm, while the 150x2 (@ 2ohm) would probably be 75x2 @ 4ohm. further, 4channel amps tend to be very portable and useful across multiple setups as you always need to power 2 to 4 speakers. the ability to actually bi-amp is available, in both active and passive methods. signal processing can be applied to each speaker seperately, with time delay being a feasible use to correct for the distance difference between your ear and the tweeter, and your ear and the midwoofer. you could also apply a second filter to the mid/tweeter to reduce out of band signals further. i would suggest tuning such filters somewhat distant from the component's passive crossover frequency, to avoid affecting it. because of the peak-power benefits, running the speakers bridged may provide some benefit, though it may not be noticable. my suggestion is to run wires for biamping, then try both configurations. [/QUOTE]

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