Reply To: Schematics for AU90 transformer modification

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#783
Ezequiel64
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Hello, and first time poster in this forum. Early last year, I purchased a one of pair of soundlab speakers known as the Renaissance R3&R4. They are a hybrid design with a panel for the highs and mid frequencies, and a dynamic woofer for the lows. In the past year I’ve been restoring them, as well as made some changes to the back plates in order to help alleviate a problem mentioned in this thread pertaining to the midrange suckout, that seems to be typical of the era around 2004. The Au90 transformer mod is very interesting, and wondered if anyone has the spec’s for it, so maybe it could be duplicated here in the states, or perhaps matched to one already made?

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