Checking the AC polarity of your amplifier


What is the best (or easiest) way to check the AC polarity of your amplifier. Has anyone used the Van den hul with any success. What was your method?
foster_9

Showing 4 responses by tbg

There have been instances where I preferred the higher leakage voltage. This also gets quite muddled with parallel transformers, such as Equi=Tech. Sometimes the leakage voltage is shocking (no pun intended).
Neil, as long as it is below 32 volts I am unconcerned. There also is little current.

Sean, while balanced power does seem like a great idea in reducing noise, I do think many crafty designers, assuming unbalances power, can result in users with balanced power having problems. I was one.
Sean, my experience with asking manufacturers about using ac filters or transformers is that they always say it is better plugged directly into the wall. I have often found they are wrong, however.

Until I got the IsoClean transformers, I had always found transformers smeared the sound and slowed the transients.
Nsgarch, initially I found that leakage voltage measurement failed to be a guide for better sound, but the ultimate problem I had was with hum with phono caused by the ground of the turntable not really seeing a ground when plugged into the Equi=Tech. When I plugged directly into the wall, I had no hum. This turnout to be caused by my not having everything plugged into the Equi=Tech. I did not have my big subwoofer amp plugged into it.

John Tucker has suggested that the ground fault circuit on the Equi=Tech is responsible for my problems and suggested that I remove it. I just gave up and sold the Equi=Tech.