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Changing Cornwall B crossover to B-2?


jcn3
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I was lucky enough to find a beautiful pair of '76 Cornwall 1s -- walnut finish with very few scratches/dings given the age.  The insides are absolutely pristine -- look like they've never been opened before.  Drives are alnico K-77 (round), K-55-V, and K33-E with a B crossover. Caps are the oil can type.

 

In reading about the B vs B-2, it seems the reason for the change to the B-2 was associated with the change from the K-77 to the K-77-M tweeter.

 

 

@Deang -- I've seen comments where you prefer the B-2 crossover and recommend going to that whenever possible.  Is the B-2 appropriate with the alnico K-77 tweeter?

 

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