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Comparison: Cullen perfect plug & MIT Z Duplex Super Conditioner

Posted by jhrlrd (A) on November 10, 2016 at 15:38:38

Using an Enacom noise sniffer, I calibrated a stock wall plug to 100%.
With the Cullen perfect plug, the reading on the Enacom came down to 11%, but fluctuated between 8% and 14% depending on what day I measured it.
Installed the MIT Z-duplex inplace of the Cullen and it was about the same.
They both seem to do the same amount of noise reduction, with the Cullen about 1/3 the price.
Now I might try putting the Cullen into my AC conditioner to see if the
reduction goes lower with both in series.
As far as sound quality goes, I couldn't discern any difference.

As a side note, with either plug I could raise the sensitivity by turning up the calibration knob on the Enacom and still hear the same noise, hiss and a radio station. so the noise was still there, just several Db down.

Edits: 11/10/16

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