New TK2050 board New TK2050 board - Page 36 - diyAudio
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

New TK2050 board
New TK2050 board
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 29th June 2010, 12:44 AM   #351
sendler is offline sendler  United States
diyAudio Member
 
Join Date: Aug 2004
Location: ny
Default No Buzzing

Quote:
Originally Posted by TheDealer View Post
thatīs also my impression. This board is much more quiet while you hear a present buzzing with the sure board. I call the the sure-sound a bit "toxic", more present and naughty compared to the smoother one from hifimedy. Itīs a point of taste and the rest of the chain I think what the better board makes.

When you regard the built in potentiometer and the speaker relay of hifimedyīs board for the same price - it is the better deal
No buzzing in my Sure boards but this is the better deal.
__________________
Scott
  Reply With Quote
Old 29th June 2010, 01:03 AM   #352
soldersmoker is offline soldersmoker  United States
diyAudio Member
 
Join Date: Aug 2005
Location: Austin, Texas
Quote:
Originally Posted by sendler View Post
No buzzing in my Sure boards but this is the better deal.
Better deal as far as better value for the buck or just plain better sound in general? I'm looking forward to getting mine any day . . .

For what it's worth, I think the Sure boards sound great, especially with Meanwell power supplies, but I got tired of damaging them when trying to mod those boards. My eyesight can't handle SMD, and I'm just a bit clumsy, not much of a craftsman.

Last edited by soldersmoker; 29th June 2010 at 01:07 AM.
  Reply With Quote
Old 29th June 2010, 03:12 AM   #353
ArjenShenzhen is offline ArjenShenzhen  China
diyAudio Member
 
Join Date: May 2008
Send a message via MSN to ArjenShenzhen
Teamacc,

For price info i suggest you find the retail channels, I've been slapped over my fingers already by placing this post, but any technical Questions i'll gladly answer.

maybe it could be fun to open a thread that compares measurements of all boards?

there are many boards out there for the TA2020/2024 now several for the TK2050, listing tests depend on speakers more than amps, and the rest, but measuring power/THD/ bandwidth will tell you the most important things of any amplifier.
__________________
Always check the power supply... and my spelling...
  Reply With Quote
Old 29th June 2010, 03:18 AM   #354
dw1narso is offline dw1narso  Indonesia
diyAudio Member
 
Join Date: Mar 2004
Location: Jakarta
hi Hifimediy,

thanks for your effort making this very good sounding amp and affordable amp (stereo TK2350 board amp)

I check my amp, the right channel DC offset is only 25mV, but the left channel is 80mVDC. Is there a way to adjust the DC offset on this amp?

what are the two multiturn-pots near the volume pot for?

Regards,
---
David
  Reply With Quote
Old 29th June 2010, 04:07 AM   #355
hifimediy is offline hifimediy  China
diyAudio Member
 
Join Date: Oct 2009
Quote:
Originally Posted by dw1narso View Post
hi Hifimediy,

thanks for your effort making this very good sounding amp and affordable amp (stereo TK2350 board amp)

I check my amp, the right channel DC offset is only 25mV, but the left channel is 80mVDC. Is there a way to adjust the DC offset on this amp?

what are the two multiturn-pots near the volume pot for?

Regards,
---
David
Hi, the blue pots near the volume pot are used for DC offset adjustment.
  Reply With Quote
Old 29th June 2010, 04:11 AM   #356
hifimediy is offline hifimediy  China
diyAudio Member
 
Join Date: Oct 2009
Quote:
Originally Posted by ArjenShenzhen View Post
Teamacc,

For price info i suggest you find the retail channels, I've been slapped over my fingers already by placing this post, but any technical Questions i'll gladly answer.

maybe it could be fun to open a thread that compares measurements of all boards?

there are many boards out there for the TA2020/2024 now several for the TK2050, listing tests depend on speakers more than amps, and the rest, but measuring power/THD/ bandwidth will tell you the most important things of any amplifier.
And for you, I'm giving my best respect for now. but you're not welcome here.
You can leave my thread with your ads.
  Reply With Quote
Old 29th June 2010, 06:47 AM   #357
dw1narso is offline dw1narso  Indonesia
diyAudio Member
 
Join Date: Mar 2004
Location: Jakarta
Quote:
Originally Posted by hifimediy View Post
Hi, the blue pots near the volume pot are used for DC offset adjustment.
I see... thanks...
  Reply With Quote
Old 1st July 2010, 10:41 AM   #358
SOSx is offline SOSx  United Kingdom
diyAudio Member
 
Join Date: Jun 2010
Location: UK
Dear hifimedy,

A quick question? As I have stated I am using your boards for a mobile audio system.
I am looking at batteries for the system.

We would very much like to employ a 24v lifepo4 battery pack due to size and weight.

Most seem to have nominal full charge of 28v-30v which I know from your posts is fine (if not near optimium) but the problem i can see is that the voltage cut off levels are generally between 16&19v.

Also as DC offset is varied according to input voltage, so surely as the batteries voltage lowers with discharge the dc offset will increase?

Will the board still operate safely at 16-19v?

Your thoughts (or anyone else for that matter)

Kind regards
  Reply With Quote
Old 1st July 2010, 12:26 PM   #359
Don Jerry is offline Don Jerry  Italy
diyAudio Member
 
Join Date: Feb 2005
Location: Rome, Italy
Another question for hifimediy:
using the same type of capacitors, what I should expect using 2.2uF caps intead of 3.3uF? I read the Tripath datasheet but honestly I didn't understand in which manner the uF value affects the audio signal.
Thanks, bye!!
  Reply With Quote
Old 1st July 2010, 01:35 PM   #360
SOSx is offline SOSx  United Kingdom
diyAudio Member
 
Join Date: Jun 2010
Location: UK
Another quick question. Does this board require a separate 5v dc power line also?
  Reply With Quote

Reply


New TK2050 boardHide 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
Sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board aquapiranha Class D 3 30th May 2011 11:06 PM
Any input on the new Dayton TK2050? finnbow Class D 10 2nd May 2011 11:37 PM
Parallled tk2050/st505 paolo66 Class D 1 24th November 2009 05:10 PM
New Sure electronics TK2050 T-amp xaudiox Class D 2 8th May 2009 07:50 AM
Tripath TK2050 Eccu Digital Source 0 19th April 2002 11:06 AM


New To Site? Need Help?

All times are GMT. The time now is 04:55 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki