What does teh uS switch really do on the Marantz 2252b receiver

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Seems like the sound gets better, or crispier with it on. I think it was for Dolby. But I know that never took off, why?

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Topic - What does teh uS switch really do on the Marantz 2252b receiver - airtime 15:37:53 03/30/07 (3)

changes the FM de-emphasis (filter network) time constant for Dolby FM - mhardy6647 15:47:11 03/30/07 (2)

75uS = US, 50uS = Europe, 25uS = Dullby (nt) - Steve O 15:53:21 03/30/07 (1)

thanks ;-) (nt) - mhardy6647 18:18:02 03/30/07 (0)

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