Motor no, strobe possibly.

Posted by Mark Kelly (M) on September 14, 2014 at 05:14:02

In Reply to: are direct drive motors afected by power frequency? posted by digda_beat on September 14, 2014 at 04:46:36:

Every DD I've ever seen rectifies the supplied power and synthesises a drive waveform at the required frequency. Since about 1969 this has usually been controlled by a frequency generator (in turn usually controlled by a quartz crystal).

The strobe, however, is another matter. Some tables (eg Technics) run a different frequency generator for the strobe, usually controlled from the same source, to one or more LEDs.

Your Denon may use a mains frequency strobe, which would cause the problem you describe. What model is it?

Mark Kelly

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Follow Ups Full Thread

Topic - are direct drive motors afected by power frequency? - digda_beat 04:46:36 09/14/14 (8)

RE: are direct drive motors afected by power frequency? - Blackdog 04:16:41 09/15/14 (1)

RE: are direct drive motors afected by power frequency? - bjh 21:28:08 09/15/14 (0)

RE: it's a dp 1200 - digda_beat 00:02:46 09/15/14 (1)

RE: it's a dp 1200 - Penguin 06:13:29 09/16/14 (0)

RE: are direct drive motors afected by power frequency? - Blackdog 05:15:59 09/14/14 (0)

Motor no, strobe possibly. - Mark Kelly 05:14:02 09/14/14 (2)

RE: Motor no, strobe possibly. - digda_beat 03:52:53 09/15/14 (0)

RE: Motor no, strobe possibly. - mr.bear 10:29:55 09/14/14 (0)

Follow Ups

Motor no, strobe possibly. - Mark Kelly 05:14:02 09/14/14 (2)

RE: Motor no, strobe possibly. - digda_beat 03:52:53 09/15/14 (0)

RE: Motor no, strobe possibly. - mr.bear 10:29:55 09/14/14 (0)

Motor no, strobe possibly.

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