Chip Amp Photo Gallery - Page 53 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 24th November 2007, 08:30 AM   #521
diyAudio Member
 
Join Date: Nov 2007
Well I looked through half the thread and I didn't see anything like this, so I hope I have something new here! It may not be a gainclone, but it sounds great...

http://lambertan.no-ip.com/images/Wintergreen_Amp/

  Reply With Quote
Old 25th November 2007, 03:00 AM   #522
troystg is offline troystg  United States
diyAudio Member
 
troystg's Avatar
 
Join Date: Apr 2004
Location: In a dream... Please don't wake me.
Ok, you got me, where's the pwr supply or connector?

Need the way it is so small.
__________________
Troy
Thinking positive doesn't make things better, it makes you a better person.
  Reply With Quote
Old 25th November 2007, 03:32 AM   #523
diyAudio Member
 
Join Date: Nov 2005
Location: Ohio
Runs off Kinetic energy
  Reply With Quote
Old 25th November 2007, 04:06 PM   #524
troystg is offline troystg  United States
diyAudio Member
 
troystg's Avatar
 
Join Date: Apr 2004
Location: In a dream... Please don't wake me.
"Need the way it is so small."

Sorry should have said:

"Neat" the way it is so small.
__________________
Troy
Thinking positive doesn't make things better, it makes you a better person.
  Reply With Quote
Old 26th November 2007, 06:39 AM   #525
diyAudio Member
 
tangmonster's Avatar
 
Join Date: Jul 2007
Location: Cape Town
My First one or is it 5 :P

So i like music like billions of other people, so i search high and low for good amplifiers and speakers , but i was never happy with something someone else ,maid , i didn't like the flashing led's and plastic looking dials.

My media setup is a pc running mediaportal connected to our tv. al movies , dvd's music , photos are on the pc. My current sound setup is a mid early 80's pioneer SA420 amplifier. With Sanyo speakers out of the same era. All and all good for now but need upgrading.

So i started with my surround amplifiers:

I LOVED okapi's design on page 12 of this forum. So I stole his idea and changed it a bit.

500VA 25-0-25 toroidal
40000uF rectifier caps per volt rail

5 x lm3886 each with their own heatink (size 15cm x 5.5cm x 5cm)
So far i REALLY like the sound , It seems like my bass is a bit lagging , but i think i go used to the bass tone controll on the pioneer , The subwoofer should cure my needs their.

The mid's and high's though is BRILLIANT compaired to the previous setup.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 26th November 2007, 06:44 AM   #526
diyAudio Member
 
Join Date: Nov 2005
Location: Ohio
Hmm do you get any hum coming from your pc PSU? I get all kinds of noise from my PC might just be because its onboard sound card.
  Reply With Quote
Old 26th November 2007, 06:56 AM   #527
diyAudio Member
 
tangmonster's Avatar
 
Join Date: Jul 2007
Location: Cape Town
Well i use the onboard sound of a gigbayte socket 478 motherboard. Cpu 2.4Ghz, So i could do a lot better with more expensive sound card.

I do get a very soft hum , but you have to put your ear against the speaker to hear it and when i plug out the rca audio in it is slightly softer. But as i said , it's so soft you have to put your ear against the speaker ,Nothing to make struggl with it for now.

The real problem at this stage is ,when i switch the pc on or off a VERY load POP or POPGRRRRRRRRR sound is made on the amplifier , it was so with my previous amplifier also. I would to find a solution to that irritating problem.

But building my sub amplifier and box and surround speakers is next big mission.
  Reply With Quote
Old 26th November 2007, 07:02 AM   #528
diyAudio Member
 
Join Date: Nov 2005
Location: Ohio
Hmm... I have chipamp from peter daniels and lots of hum from my pc. Quite annoying...I don't get hardly any hum from a standalone dvd/cd unit though.
  Reply With Quote
Old 26th November 2007, 08:26 AM   #529
Nordic is offline Nordic  South Africa
diyAudio Member
 
Nordic's Avatar
 
Join Date: Sep 2005
Don't switch the PC off..... easy. Much better for the PC too.

You could try a buffer with something like NE5532 I find it gives very good noise rejection when used with PC as a source...in the same circuits where "better" chips hum like crazy... when connected to the PC.

Of course best noise isolation from a PC would be in the form of transformers...
  Reply With Quote
Old 26th November 2007, 08:34 AM   #530
diyAudio Member
 
tangmonster's Avatar
 
Join Date: Jul 2007
Location: Cape Town
hehe , great solution my fellow capetonian.

And yes probably the best one.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 06:26 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2