Go Back   Home > Forums > >

Class D Switching Power Amplifiers and Power D/A conversion

Sabaj A20a modification... worth the effort?
Sabaj A20a modification... worth the effort?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools
Old Yesterday, 09:01 PM   #51
douede is offline douede  France
diyAudio Member
 
Join Date: Aug 2018
I guess everyone checked the settings before posting about the sound...
  Reply With Quote
Old Yesterday, 09:04 PM   #52
SoniCCurrent is offline SoniCCurrent
diyAudio Member
 
Join Date: Sep 2021
Quote:
Originally Posted by douede View Post
Hummm...submiting (bias) or operating a lytic cap at its rated voltage is no good for its lifespan nor regarding distortion/linearity (see Cyril Bateman investigations).
Where do I find those Bateman investigations, do you have a link?
I believe as long as you stay below V+7% you should be fine. 26V should be ~4% therefore okay, as long as there is not much heat in the case and as long as the ripple does not get too high. Since I swapped the PSU with a RPS-400-24, there should be notably less ripple coming to those caps, for it's great in those terms. Therefore I should be safe (I figured) using 26V.

https://www.mouser.com/pdfDocs/UCC_E...nicalNotes.pdf
5-6-1 Overvoltage shows 107% WV has small effect and 114% WV much more on lifetime.
  Reply With Quote
Old Yesterday, 10:05 PM   #53
Jogi is offline Jogi  Germany
diyAudio Member
 
Join Date: Jan 2008
I had to check it every day from time to time, because it just changes without me doing it. I think it's a bug.
  Reply With Quote
Old Yesterday, 10:17 PM   #54
douede is offline douede  France
diyAudio Member
 
Join Date: Aug 2018
Quote:
Originally Posted by SoniCCurrent View Post
Where do I find those Bateman investigations, do you have a link?
Well, had hard time googleing "Cyril Bateman capacitors" led me to the first link : Cyril Bateman's Capacitor Sound articles | Linear Audio NL
  Reply With Quote
Old Today, 02:01 AM   #55
SoniCCurrent is offline SoniCCurrent
diyAudio Member
 
Join Date: Sep 2021
This is what I don't understand. The new MA12070 amp from Topping does not seem to have 2200 FK caps at all, but only 470 35V caps, Link, just as the DIY boards you can buy from audiophonics, just as the reference-board from infineon.

Why do they use those instead?
  Reply to this post

Reply


Sabaj A20a modification... worth the effort?Hide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sabaj D3 Asio tony.garner Digital Line Level 2 23rd July 2020 06:19 PM
Sabaj DA3 Dual ES9018Q2M DAC Internal Pics wushuliu Digital Line Level 3 30th October 2017 11:50 PM
Is it worth the effort? reticent67 Car Audio 10 6th July 2004 04:53 AM
Is this mod worth the effort? clevegilbert Tubes / Valves 2 27th January 2004 01:23 PM
"Angling rings"... worth the effort? eRiCdWoNg Multi-Way 16 4th August 2003 09:50 PM


New To Site? Need Help?

All times are GMT. The time now is 07:02 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki