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Grado hum on Oracle Delphi?

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Posted on January 10, 2017 at 16:00:54
Wojciech
Audiophile

Posts: 1090
Joined: June 23, 2009
Does anybody have experienced hum from Oracle's Delphi motor assembly with Grado /Music Maker III or wood bodied Grados ?
Thanks, W

 

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RE: Grado hum on Oracle Delphi?, posted on January 11, 2017 at 08:19:20
Awe-d-o-file
Manufacturer

Posts: 16756
Location: 100 miles west of DC
Joined: January 10, 2004
Contributor
  Since:
October 31, 2005
Word bodies are the same metal body underneath. Various setups can have hum like Regas. As a Grasp dealer their is almost always a way around this fooling with grounding schemes. Start with lifting the AC ground with a cheater plug if the Oracle has one. Then try various grounding. Good luck.




ET

"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936

 

RE: Nope!, posted on January 11, 2017 at 08:44:08
NuWave
Audiophile

Posts: 1812
Joined: March 22, 2002
I've run a Ref Platinum, 1.5 mv Sonata, and now a Reference Reference and haven't heard any hum with mine. Are the motors different between models? I have the mk 2 with the original motor(I think), and running it with a Hagerman Bugle phono stage.

 

RE: Grado hum on Oracle Delphi?, posted on January 11, 2017 at 13:31:49
Wojciech
Audiophile

Posts: 1090
Joined: June 23, 2009
The thing is that I've got Delphi V with no money left for any of better arms . At disposal is Rega RB600 with incognito wire and Techno weight, very light, rare and really pretty looking /matching the table Audio Technica AT-1100 with two wands or eventually old Hadcok GH242 unipivot. Now, I'm leaning toward Audio Technica since I could mount my Music Maker III , Audio Note IQ3 or ev Grado Sonata Statement (although it sounds better in heavy arms really). Oracle tonearm plates are rather expensive so if Grado carts are going to hum I will go with Rega and have more cart choices. I should probably contact Oracle.

 

RE: Grado hum on Oracle Delphi?, posted on January 12, 2017 at 07:37:36
louie3
Audiophile

Posts: 524
Location: Signal Mountain, TN
Joined: January 14, 2006
FWIW: I have three Decca/London cartridges and none of them hum on my Delphi 5/6. Generally speaking, anywhere a Grado will hum, a Decca will hum louder. :)

 

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