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JKent

Wanted: Cizek crossover schematic

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Working on some KA-1s. The crossover is very complex: three 25uF caps, three 20uF caps and one 10uF. Also a 30 ohm resistor and three 2.5 ohm resistors. Four smaller inductors and 1 larger.

Here's the thing: at one point in the circuit, there are two 2.5 ohm resistors in parallel, with a black wire jumped from one end to the other. In other words, a short circuit. I have no idea why the resistors are even in there!

Can anyone help with this? Here's a photo.

Thanks,

Kent

post-101828-0-50998600-1350584387_thumb.

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Thanks to Paolo I have the schematic and thanks to John O' we'll have one with all the values to post.

Re: The above photo. Those resistors are not on the schematic. John figures someone put 1.25 ohms in series with the woofer to make it higher DCR. This is a 4 ohm speaker system (the tweeter is 8 ohms). Later the jumper was added presumably because the owner got an amp that would handle 4 ohms.

I'll post the full saga with photos when there's more progress.

Kent

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