Keep the Wadia display OFF.

Posted by Leisure7 (A) on December 20, 2003 at 15:45:17

In Reply to: Re: The cheap portable radio test. posted by S on December 19, 2003 at 11:57:54:

Sorry for the confusion. I left out part of the story for brevity.

The AM radio gives lots of noise between stations. The only way to tell if one is picking up noise from the Wadia is to start and stop whatever function is under test.

In the case of the display, turning the display on and off makes particular radio noise (about mid-band) come and go. The signal is quite strong.

With an unshielded wire attached to the digital output, the noise is detected by starting and stopping playback of a CD. This signal is weaker than that from the display.

You are correct: the Wadia sounds cleaner with the display turned off, and I now routinely switch the display off unless I need it for setup or navigation on a disc. The sonic improvement from the Power Wraps is heard with the Wadia display off, so the display is not the source of the RFI that the Power Wraps are helping. There is no other digital equipment attached to the Wadia or nearby, so I don't know what else to blame except the Wadia power supply in my case. Since you can hear the effect of the display by its absence, you may also benefit from treatment such as the Power Wraps.

I also agree that mains RF is a significant problem for a lot of equipment, not just CD players. I also got an improvement by adding Power Wraps to the (stock) line cords to my Atma-Sphere MA-1 power amps. The biggest improvement came from adding them to the Wadia cord.

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Follow Ups Full Thread

Topic - Power Wraps with Wadia 861 - Leisure7 19:51:42 12/17/03 (20)

I had much luck on the 861 - KeithR 13:44:28 12/19/03 (1)

Appears to be a similar approach. - Leisure7 07:34:00 12/21/03 (0)

Re: Power Wraps with Wadia 861 - mazort 18:56:57 12/18/03 (3)

The cheap portable radio test. - Leisure7 10:03:29 12/19/03 (2)

Re: The cheap portable radio test. - S 11:57:54 12/19/03 (1)

Keep the Wadia display OFF. - Leisure7 15:45:17 12/20/03 (0)

Re: Power Wraps with Wadia 861 - gryphonaddict 12:39:37 12/18/03 (0)

Re: Power Wraps with Wadia 861 - highendman 08:32:53 12/18/03 (0)

Re: Power Wraps with Wadia 861 - audionutge@yahoo.com 21:22:09 12/17/03 (1)

Re: Power Wraps with Wadia 861 - Leisure7 09:53:56 12/18/03 (0)

Re: Power Wraps with Wadia 861 - Roland N 20:42:06 12/17/03 (9)

solid core DIY wraps - bartc 13:52:24 12/18/03 (8)

Solid or stranded but needs connection to ground. - Roland N 20:25:49 12/19/03 (1)

That 4.7 MFD cap needs to be film ie polyester is OK. nt - Roland N 20:33:25 12/19/03 (0)

Which effect? - S 06:14:43 12/19/03 (5)

Re: Which effect? - bartc 06:44:56 12/19/03 (4)

You need the proper materials. - Leisure7 09:55:33 12/19/03 (3)

Re: You need the proper materials. - S 11:50:10 12/19/03 (1)

Disagree. - Leisure7 15:53:09 12/20/03 (0)

Yea, verily! nt - bartc 10:35:40 12/19/03 (0)

Follow Ups

Keep the Wadia display OFF. - Leisure7 15:45:17 12/20/03 (0)

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