Zen 9 and 90Hz

neil_kaye · 8th June 2007, 03:33 AM

Would someone mind explaining to me what running the power feeding a Zen 9, or for that matter any amp, at a highter frequency rate might do?
The reason i ask is that i have a PS Audio 300 power generator that allows me to vary the frequency of the AC.
There may be some sonic advantages, minor admittingly, but still vaguely noticable at least to my ear, at running the power at 90HZ. I have noticed that the amps tend to run a little hotter, is this my imagination?
Any thoughts would be greatly appreciated

Nelson Pass · 8th June 2007, 06:15 PM

Transformers run a little more efficiently with increased frequency,
so you might be seing a little more voltage on the rails for your
trouble. Also, the filtering is a little more effective, so you might
see a bit less noise.

Zen Mod · 8th June 2007, 06:17 PM

anyway - you can have more benefit if you use 3-phase xformer

way less ripple, but point is in power factor,in fact

neil_kaye · 8th June 2007, 08:26 PM

... and perhaps that little less noise is what's translated to slightly deeper bass.

Any potential long term harm to the FETS or is it much of a much ness.

As alwyas grateful for the response

8th June 2007, 03:33 AM	#1
neil_kaye diyAudio Member Join Date: Dec 2005 Location: San Francisco	Zen 9 and 90Hz Would someone mind explaining to me what running the power feeding a Zen 9, or for that matter any amp, at a highter frequency rate might do? The reason i ask is that i have a PS Audio 300 power generator that allows me to vary the frequency of the AC. There may be some sonic advantages, minor admittingly, but still vaguely noticable at least to my ear, at running the power at 90HZ. I have noticed that the amps tend to run a little hotter, is this my imagination? Any thoughts would be greatly appreciated

8th June 2007, 06:17 PM	#3
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	anyway - you can have more benefit if you use 3-phase xformer way less ripple, but point is in power factor,in fact __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

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8th June 2007, 06:15 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	Transformers run a little more efficiently with increased frequency, so you might be seing a little more voltage on the rails for your trouble. Also, the filtering is a little more effective, so you might see a bit less noise.

8th June 2007, 08:26 PM	#4
neil_kaye diyAudio Member Join Date: Dec 2005 Location: San Francisco	... and perhaps that little less noise is what's translated to slightly deeper bass. Any potential long term harm to the FETS or is it much of a much ness. As alwyas grateful for the response