My First chip amp. - Page 2 - 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 1st June 2008, 01:40 PM   #11
cpemma is offline cpemma  United Kingdom
diyAudio Member
 
Join Date: Jul 2003
Location: S Yorkshire OK
Default Re: My First chip amp.

Quote:
Originally posted by mikje
Do any of you DIY-ers have any suggestions for tweaks? Better caps, maybe???
A simple tweak for the preamp board would be better dual op-amps; as they're socketed it's easy to experiment. Apparently they come with TL072, it's not expensive to buy a few more up-market ones to try without going OTT. NE5532 and OPA2134 spring to mind but others may suggest better.

Both these boards use a simple onboard rectifier/smoothing section so on one hand changes to the electrolytics is pretty easy, on the other bypassing this section on the preamp with a regulated (7812 & 7912) supply may give more benefit.

Full preamp details.

K4003 Amp details.
  Reply With Quote
Old 1st June 2008, 03:17 PM   #12
mikje is offline mikje  United States
Soakin' up the Sound!
diyAudio Member
 
mikje's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
cpemma,
Thanks for the tips. I found the op amps and regulators at mcmelectronics. Can you explain for this newbie how I would wire the regulator. Also, if I replaced the electrolytics, what would you recommend I use to replace them. What effect on the sound will better, larger electroytics have?
Thanks again for your tips.
Mike
__________________
Marantz PM8003 amp, Jolida SJ502A, Squeezebox Touch, MLTL Continuums, DIY Carmichaels (Dayton, TangBand, Vifa); MarkAudio A 7.3 Frugalhorns, MarkAudio CHP-70s
  Reply With Quote
Old 4th June 2008, 08:04 AM   #13
Bluto is offline Bluto  United States
diyAudio Member
 
Join Date: Sep 2007
Location: WI.- near the Dells
Mikje -

Apologies for going off topic but I'm curious about you 3CR TB's.

Have you tested them with anything yet? Impressions?

Bluto
  Reply With Quote
Old 4th June 2008, 12:02 PM   #14
mikje is offline mikje  United States
Soakin' up the Sound!
diyAudio Member
 
mikje's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
Bluto,
I have been running the 3CRs. I like them a lot. They are light in the base, so I run them with a sub-woofer. I ran them off my Velleman amp; 12-15 WPC. They sounded great. Definitely worth the time and money. They take a little time to break in, so that needs to be kept in mind.
Thanks for asking.
Mike
__________________
Marantz PM8003 amp, Jolida SJ502A, Squeezebox Touch, MLTL Continuums, DIY Carmichaels (Dayton, TangBand, Vifa); MarkAudio A 7.3 Frugalhorns, MarkAudio CHP-70s
  Reply With Quote
Old 15th June 2008, 11:46 PM   #15
mikje is offline mikje  United States
Soakin' up the Sound!
diyAudio Member
 
mikje's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
I think I'm being close to finished with this amp. I still have a very slight hum, so I still need to work on some grounding. Otherwise, I think it's finished!

http://www.audiocircle.com/gallery/t...php?album=2191
__________________
Marantz PM8003 amp, Jolida SJ502A, Squeezebox Touch, MLTL Continuums, DIY Carmichaels (Dayton, TangBand, Vifa); MarkAudio A 7.3 Frugalhorns, MarkAudio CHP-70s
  Reply With Quote
Old 19th June 2008, 02:57 PM   #16
diyAudio Member
 
ambience exists's Avatar
 
Join Date: Jun 2008
I considered getting one of these kits, as the Chipamp.com kits can get pricey...

((AE))
__________________
((AE))
  Reply With Quote
Old 20th June 2008, 12:09 AM   #17
Edits is offline Edits  Indonesia
diyAudio Member
 
Join Date: Feb 2008
Mikje, that is nice unique amp you have!
Already solve the hum problem? And how do you prevent temp buildup inside the case?
  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which Chip AMP you like most? dynabok Chip Amps 154 12th December 2012 01:23 PM
Pre-amp for chip amp wotsascott Chip Amps 23 30th April 2006 04:24 PM
First Chip Amp doomsweek Chip Amps 9 10th May 2005 01:55 AM
Best possible 10W from chip amp Robert_66 Chip Amps 14 2nd November 2004 11:43 AM
Hot chip! batkey Chip Amps 1 14th October 2004 11:54 AM


New To Site? Need Help?

All times are GMT. The time now is 12:04 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