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Identifying an Auditorium 23 Step up transformer

Hi, I have an Auditorium 23 Step up Transformer but don't know whether it is the high impedance version - for Denon 103, EMT etc, or the low impedance version for Ortofon SPU. There are no markings that indicate anything on the case. Can anyone help please? Mine has a black earth wire coming from its innards.
Thank You
rogerstaton

Showing 2 responses by randyk

randyk
70 posts
 
Bingo.  DeKay has your answer.  Denon 103.  Enjoy!
randyk
70 posts
 
I have the SPU model I purchased in 2009.  In those days, there was no badge.  Silver colored case work was SPU; black case was Denon/EMT.  Ground wire on mine is black.

Best to take a photo and send it to Jonathan Halpern, Tone Imports, for confirmation, if there is still any doubt.
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