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MagneQuest/Peerless Forum Welcome! Need support, you got it. Or share your ideas and experiences. |
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MagneQuest/Peerless Forum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: RE: TL-404 crossover posted by xcortes on October 2, 2015 at 14:17:21:
Yes, actually a little bit less than 100 ohms but I went with standard cap values that were close at hand. 0.18uF might be better but I need to measure the acoustic response of the woofer and the tweeter with a mic to dial things in. It is reasonably close to my preferred balance already though. Cap type/flavor might matter as much as precise cap value here.
There is a strong drop in the impedance and phase curves vs. frequency from 200 ohms at 4-5k.. I think it wise to measure actual impedance at the input terminals. Seems to be a complex load.
This crossover sounds really fine, although I wouldn't run out and buy TL404s to do it...but maybe it is much better than resistors and a cap?
I am building another version for an Altec 802 using an Atlas Sound HT371 transformer wired 12.5:1 with a bypassed resistive attenuator on the secondary for HF EQ. That one came out to 100 ohms also. I hope to be listening to those tonight.
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- RE: TL-404 crossover - Joe Roberts 14:42:53 10/02/15 (0)
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