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Curious re: SA7 fuse rating

Thanks. Now I'm curious about the fuses in the player. I'm a believer in upgrading fuses, and I have noted positive results with upgrading fuses in my preamp, amps and Magnepans (have used HiFi Tuning and Furutech) Do you know the rating for the primary power fuse in the Marantz, or can you direct me to a schematic that would indicate it? Given your description of the transformer, it would be interesting to see if the increase in transparency I hear is related to the stock fuse being "bypassed" vs AC polarity and its impact on chassis voltage.

By the way, I did measure a lower chassis voltage with the reversed AC, using my Elfix 'meter' (all IC's disconnected, of course)


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