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KG5.5 upgrade and crossover schematic


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Have a pair of KG5.5s for several years now (original owner).

Driving with a pair of Bottlehead Paramour 2A3 amps and FP2

tube Pre (also Doc B.'s). Have been so busy working on the

front end it's time to work on the speaks! Can anyone provide

the upgrade path and schematic for crossover? Thanks to all,

Andrew

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  • 2 weeks later...

How about doing away with the PCB all together, like some of the ALK's I've seen photos of here.

I would like to keep the stock xovers intact, just in case.

The Madisound generic 12db 2-ways look like they might work fine and afford plenty of room.

Any advantage to using air core over irons for the woofer?

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That resistor with the slash through it is indeed the tweeter protection thingy, and according to another thread it can be replaced with a 1-ohm resistor.

The 10w mills should be okay as long as it 2 ohm.

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That "thingy" is called a Polyswitch. That's O.K., there was a time not too long ago that I didn't know what in the heck it was called either. Please make sure you measure the DCR of the original coils before seeking replacements.

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Sounds good so far. I happened across the polyswitch in my parts express catalog. Not sure if it will stay or go.

I have to say rope caulking the horns did make an improvement - that plus some minor placement changes snapped the imaging right into focus like never before.

You one thing I noticed about the stock xovers is there's one iron core inductor in the L1 spot... and what looks like a capacitor for L2. I need to look again more carefully- I guess?

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