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RE: How many here still listen to Quad ESL 57's?

David's amps essentially never need tubes. He designs that way. The prototype BA150 was turned on in 1972 and turned off in 1977 with no measureable wear on the output tubes.

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  • RE: How many here still listen to Quad ESL 57's? - hahax@verizon.net 05/5/2020:40:28 05/5/20 (0)
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