Best kept secret in AC line filtering conditioning


How many of you guys truly know of Puritan Audio Labs ? Not many yet ,these are made in the U.K 
I have 3 friends in Europe that own them , and found a guy at our audio club just  an hour away 
I will check out next week , and against the much more costly AQ niagra  this removes hum,noise 
like nobodies business .model 136, and  better still model 156 all under $2k check out the video.
https://6moons.com/audioreview_articles/puritan/


audioman58

Showing 2 responses by turnbowm

Be aware that the Puritan 156 has filters on every outlet and may not work well with power amps (and integrateds) because of "current-starving" under dynamic conditions. Also, the 156 uses gas discharge tubes for surge suppression. The problem here is that GDTs take several microseconds for the gas to ionize and let-through voltages in this interval can be very high.

grannyring
5,590 posts
08-21-2021 4:23am
"The Puritan does not limit current. This has been my actual experience with large SS, pure class A amps which are very high current designs."

Class A amps have a relatively constant current draw, so series-mode filters (inductors) do not pose a problem.The dynamic (changing) current demand of Class A/B amps, however, is a problem. Inductors oppose changes in current flow which results in "current-starving" of the amp.