|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
99.227.108.37
In Reply to: RE: Thanks. A picture (or schematic) is worth a thousand words. posted by Lew on March 06, 2014 at 20:48:04
OK, that experiment worked.
I don't know if it was the increase in capacitance from 1uF to 1.2uF. It may have been the Clarity MA. There was both an increase in resolution and body in the midrange. It could have been the Vishay MKP 1837 added. I am happy.
Now comes something a little harder;
My amps have 1,200uF of power supply capacitance per amp. This is by way of 12 100uF caps, 6 per phase. I have some BlackGate VK 150uF caps. I would end up lowering the total per phase from 600uF to 450uF. What else would need to be changed with this decrease. If the BlackGates have lower ESR, would I even need to change anything.
Follow Ups:
I thought you said in your original post above that your amps had 28,000uF of capacitance, or are you now referring to the HV supply? Either way, I have never been convinced that Black Gate electrolytics were particularly magical, and I don't think the ESR of a BG would be any lower than that of a top line Panasonic (TS series) or Nichicon. Bypass film caps will give more bang for the considerable bucks of a BG (but I guess you already own the VKs). On the HV supply, I use pi filters. Start with around 50uF then use a low DCR inductor (I use Hammond 3H) followed by 100uF or 220uF.
Lew
You and I listen to highly revealing and highly accurate speakers and we hear a lot of things for what they actually are.That is probably one of the major drawbacks with our ESL speakers and that is,bad material and electronics is put on display in a big way so when I tell people that black gates are nothing special,they can't understand why until I put a film cap or motor run in its place.
Honest amplification is better than excessive 2nd order distortion anytime.
We tried them as coupling caps in a solid state mixer and they worked great.
But when we installed them in the power supplies of an amplifier they really were nothing special. The Illinois part worked just as well.
Maybe my terminology is incorrect. See you in the morning. Bill
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: