Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

TPA3250 somebody is listening?
TPA3250 somebody is listening?
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 Search this Thread
Old 27th March 2018, 08:54 AM   #261
chermann is offline chermann  Austria
diyAudio Member
 
Join Date: Jan 2017
Location: Vienna

thanks...
but i am joking

i know it from my previous hobby

13.5T - TORQUE 1/10 Brushless Motor VX 540 2 Pole Sensored
  Reply With Quote
Old 27th March 2018, 09:28 AM   #262
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Quote:
Originally Posted by chermann View Post
Hi

as i am a noob i can ask somehting strange

Yesterday i got my ESR/LCR Meter (Peak tec 2170) and i am playing around. finally i choose to start a comparison between audio cap and an SMPS cap. both caps are new and they were not in a circuit.


Which is best? Sounding ? Is it possible according to this datas to see a "sounding"??

Any comments
What is the 'Rp' in your table? Cannot be the parallel R to the C, right?

Anyway, the SMPS cap is really a better cap if you want to get as close to the ideal cap. Whether that is audible? Probably not.

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 27th March 2018, 11:47 AM   #263
chermann is offline chermann  Austria
diyAudio Member
 
Join Date: Jan 2017
Location: Vienna
Quote:
Originally Posted by jan.didden View Post
What is the 'Rp' in your table? Cannot be the parallel R to the C, right?

Anyway, the SMPS cap is really a better cap if you want to get as close to the ideal cap. Whether that is audible? Probably not.

Jan
hi Jan.
thanks for your reply. yes the RP is the parallel R to the DUT -C.
Yes the ideal is more likly the SMPs cap.

Do you have experience with SMPS vs Audio cpas sound wise???
  Reply With Quote
Old 27th March 2018, 11:54 AM   #264
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Then that Rp is in error. The parallel R to a reasonable good cap should be in the megohms if not gigohms.

Jan
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 27th March 2018, 11:59 AM   #265
chermann is offline chermann  Austria
diyAudio Member
 
Join Date: Jan 2017
Location: Vienna
Quote:
Originally Posted by jan.didden View Post
Then that Rp is in error. The parallel R to a reasonable good cap should be in the megohms if not gigohms.

Jan
mybe i am the ERROR
...i just press this function button to get the ESR but it is not working....
  Reply With Quote
Old 27th March 2018, 12:36 PM   #266
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Westende Resort, BE coast
Quote:
Originally Posted by chermann View Post
mybe i am the ERROR
...i just press this function button to get the ESR but it is not working....
ESR is not Rp...
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan
Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY.
  Reply With Quote
Old 27th March 2018, 07:33 PM   #267
chermann is offline chermann  Austria
diyAudio Member
 
Join Date: Jan 2017
Location: Vienna
Quote:
Originally Posted by jan.didden View Post
ESR is not Rp...
thanks for your advice
  Reply With Quote
Old 29th March 2018, 12:57 AM   #268
cacao ambiance is offline cacao ambiance  United Kingdom
diyAudio Member
 
Join Date: Oct 2015
Is this a newer version? What does the pcb look like on the ones people have ordered? This one says REV 3 and has white pcb for vol VR board.

FX AUDIO FX502S PRO HIFI 2.0 Audio Digital High Power Amplifier Home Mini Professional Amp TPA3250 NE5532 *2 70W *2 on Aliexpress.com | Alibaba Group

This seller has different photos from other sellers.
Click the image to open in full size.

Last edited by cacao ambiance; 29th March 2018 at 01:00 AM.
  Reply With Quote
Old 29th March 2018, 07:22 AM   #269
noasds is offline noasds
diyAudio Member
 
Join Date: Dec 2017
Quote:
Originally Posted by cacao ambiance View Post
Is this a newer version? What does the pcb look like on the ones people have ordered? This one says REV 3 and has white pcb for vol VR board.
Why new, looks like the same, just better quality pictures. I guess all sellers have one supplier.
  Reply With Quote
Old 29th March 2018, 12:09 PM   #270
forestsgump is offline forestsgump
diyAudio Member
 
Join Date: Dec 2017
Is yours pcb Rev 3, if not post a picture?
  Reply With Quote

Reply


TPA3250 somebody is listening?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
MPA 3250 Amp johnmik Solid State 18 8th May 2019 05:32 PM
RD Audio 3250.1 Deadly Sones Car Audio 1 10th July 2013 05:51 PM
RD Audio 3250 V2 S Merlington Car Audio 3 28th February 2013 05:55 PM
What are you listening to? MikeW Pass Labs 36 20th June 2011 01:54 AM
Denon DOA-3250 mike49504 Car Audio 2 12th November 2010 08:17 PM


New To Site? Need Help?

All times are GMT. The time now is 09:23 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki