“I don't see why- ferroresonant transformers make a fair bit of noise in their output...”
Noise attenuation
Noise attenuation
- 120 dB common mode
- 60 dB transverse mod
Power Conditioners
I have about $5,000 invested in a 2 channel stereo setup. Marantz PM7000N integrated receiver, Canton Chrono SL596 speakers, Rega P6 table, blue jeans Canare 4S11 cables. Is it worth it to buy a cheap power conditioner/protector like this
https://www.musicdirect.com/power/furman-pst-8-d-digital-power-station or this
https://upscaleaudio.com/collections/power-conditioners/products/pangea-quattro-power-center
Will I be able to hear a difference/is my equipment sensitive enough to notice a difference; or will a typical surge protector suffice? Otherwise, will it be a waste of money to spend money on a low priced conditioner?
Thanks!
Will I be able to hear a difference/is my equipment sensitive enough to notice a difference; or will a typical surge protector suffice? Otherwise, will it be a waste of money to spend money on a low priced conditioner?
Thanks!
Showing 4 responses by puffball08
I’m surprised in this thread and some others no mention is made of Sola ferroresonant transformers. https://solahevidutysales.com/mcr_portable_series_power_conditioner.htm They’re not sexy looking, they’re heavy, they buzz, they naturally run hot, they’re not cheap and they’re hard to find (mostly because they’re made to order). In spite of their drawbacks, not many other AC line conditioners do as much with so few components as a Sola. No semiconductors of any kind. No sacrificial MOV either, no need. And yeah, I’ve used a MCR series for years and would not consider anything else. And yeah, it lives in another room where I can’t hear it buzz. |
atmasphere- Your point about non-sinusoid output waveform and generated secondary harmonics are well taken. However, Sola mitigated this by adding an additional “neutralizer” winding in the secondary. The following document contains a description of how it works. Refer to the PDF page 4 under the heading “Ferroresonant power conditioners and harmonics”. https://www.emerson.com/documents/automation/product-guide-solahd-power-conditioners-en-us-99748.pdf |
@atmasphere, You may find this interesting. This is Joseph Sola’s original patent from 1938 for a constant potential transformer, the forerunner of what Sola makes today. https://patents.google.com/patent/US2143745A/en |