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

TPA3116D2 Amp
TPA3116D2 Amp
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 8th July 2020, 06:42 AM   #11531
eshamp is offline eshamp  United Kingdom
diyAudio Member
 
Join Date: Mar 2019
Thanks for the reply. I wired them in series, using the diagram found in the boominator digest on the boominator thread.
  Reply With Quote
Old 8th July 2020, 10:05 AM   #11532
jemraid is offline jemraid  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: NE Derbyshire
TPA3116D2 Amp
Hello Eshamp,

In series the resistances add up 2 x 8 Ohm = 16 Ohms or 4 x 8 Ohm = 32 Ohm
Your voltage would have to double to drive 16 Ohm
See if you can find out how to get the total resistance down to 8 Ohm or even 4 Ohm by parallel wiring. This should solve the problem.

Cheers - Jim
  Reply With Quote
Old 8th July 2020, 12:50 PM   #11533
eshamp is offline eshamp  United Kingdom
diyAudio Member
 
Join Date: Mar 2019
My mistake, they are in parallel. Below is the wiring diagram. I think it must be a gain issue as mobile phones play really quietly compared to laptops or TVs.

Click the image to open in full size.
  Reply With Quote
Old 8th July 2020, 02:17 PM   #11534
jemraid is offline jemraid  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: NE Derbyshire
TPA3116D2 Amp
Hello Eshamp,

Your speakers in parallel are down to 4 Ohms which should be fine. I see also that the speakers are 98 dB tweeter and 96 dB for the woofer. Goodness gracious then at 1 Watt it would be very dangerous to stand near them 95 dB being the pain and permanent damage threshold.

All you are ever going need is about 1/16th of a Watt.

Sadly I'm not expert enough to help you now, perhaps someone reading this will be able to help using what I have found out about the speakers.

I do hope so.

Cheers - J
  Reply With Quote
Old 8th July 2020, 05:02 PM   #11535
eshamp is offline eshamp  United Kingdom
diyAudio Member
 
Join Date: Mar 2019
They are definitely loud, but only if input is from something like a TV or laptop. They don't get very loud when using a phone.
  Reply With Quote
Old 8th July 2020, 11:41 PM   #11536
Trileru is offline Trileru  Romania
diyAudio Member
 
Join Date: Dec 2010
Anyone got a photo without a heatsink for this mono board?
Attached Images
File Type: png Screenshot from 2020-07-09 02-41-20.png (371.2 KB, 45 views)
 

Reply


TPA3116D2 AmpHide 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
FS- Twisted Pear Buffalo 32S Board & System New & Unused secretriches Swap Meet 1 10th August 2009 02:17 PM
Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5 quality sound Tubes / Valves 0 9th May 2009 03:59 PM
Krell KSA 80 bias & dc offset check & adjust procedure Clouseaupte Solid State 3 9th August 2007 09:39 AM
DIY-AMP <ZAS> Low THD & IM high bandwith murphy Solid State 18 30th December 2005 10:28 AM


New To Site? Need Help?

All times are GMT. The time now is 11:50 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki