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RE: MMGi crossover update

Posted by jazzbeat (A) on July 28, 2021 at 15:30:55

In Reply to: RE: MMGi crossover update posted by neolith on July 28, 2021 at 06:03:32:

I am inclined to disagree with your observation. The MMG uses a 2nd degree crossover on the bass / mid panel and 1st order on the tweeter. As mentioned earlier the amplifier had a difficult time powering the bass mid panel compared to my ET LFT 8s. Magnepan 1.7's, as well as orginal MMGs. As I did not notice however very obvious the 110 UF capacitor across the woofer and in such directly across the power amplifier output is not a great thing.
Generally in a 2nd order crossover the capacitor serves a secondary function in creating the low pass condition . Anything above say the 25 uf in this position is similar to driving a difficult ESL speaker.( most electrostatic speakers present a high capacitance load ). I am tempted to revert back to the orginal MMG crossover over time. The bass in my opinion with this version MMGi is not a winner.

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