passive Crossovers for the BBC Rogers LS 5/8

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here is the passive cross-over developed by Derek Hughes of Graham Audio for the BBC Rogers 5/8 , it makes it possible to use any power amp and not be limited to the Quads 405. Only 200 lots were made.



As electronic experts could you please tell me your opinion: is the circuit interesting ? Likely to improve the sound ? Obviously, these things are subjective
but there are still some objective points and I am genuinly interested in your opinion.
 

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