Chinese made Kit solid state Amplifiers on Ebay - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 26th May 2015, 05:43 PM   #1
diyAudio Member
 
Join Date: Mar 2015
Default Chinese made Kit solid state Amplifiers on Ebay

Hi folks

Just curious has anyone already built any of these kits.
I note their is already a Naim discussion on the site but I was more interested in the L20SE type.
link to finished version here Assembled L20SE Power amplifier board with A1943 C5200 (include 2 channel boards | eBay

I do have previous experience building and modifying equipment and would like to use some of the many vishay bulk foil resistors etc I have left unused.Same with Silmic capacitors. Im not sure I want to try building the Honey badger though it would be a challenge.
Any comments re the design would be helpful.
thanks
  Reply With Quote
Old 26th May 2015, 06:08 PM   #2
diyAudio Member
 
Keruskerfuerst's Avatar
 
Join Date: May 2007
Location: Germany, Augsburg
Is there a circuit diagram available?
Any measuring results?
  Reply With Quote
Old 26th May 2015, 06:22 PM   #3
diyAudio Member
 
Join Date: Mar 2015
Havent found one yet but most of their designs show this generic type circuit
Not sure if I would trust measured results or their significance
Improved MX50 SE Power amplifier assembled board Dual 2.0 channel 100W+100W HIFI | eBay

note item shown on original circuit board are same values ie resistors 68r etc and cap s 105 103 & 101 etc
Neither board uses bypass the larger 100mf caps (easily done)

Last edited by raffajaffa; 26th May 2015 at 06:37 PM.
  Reply With Quote
Old 26th May 2015, 06:57 PM   #4
diyAudio Member
 
Join Date: Mar 2015
Default another similair

L12-2 Stereo Audio CLASS AB Power Post-Amplifier Board DIY kit dual 2.0 channel | eBay
  Reply With Quote
Old 27th May 2015, 12:04 AM   #5
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
I think you'll find threads for just about any audio kit here.. Some popular ones get several threads.
All 3 you posted; L20, MX50 and L12-2 certainly have threads.

Just use the search button to search this forum or simply Google for the quite prominent DIYaudio threads listed for these LJM designed kits. The designer is a member (ljm_ljm) here and usually starts his own thread to introduce the models and start discussion.
__________________
Ian
  Reply With Quote
Old 27th May 2015, 07:49 AM   #6
diyAudio Member
 
Join Date: Mar 2015
Default thanks for that Ian

Hi
I had done a few searches but failed to find those links,
Having now spent enough time reading them I have come to conclusion
it would be worth Risking either an assembled version of L20 Ver? or L25 with the
op amp gain stage.The latter almost identical to the Dr White amp I made many years ago which has sadly been damaged in a house movee and which I am now unable to repair.
It also caused a damaged tweeter now repaired .
I was left with one good amp and one good trafo 220watt with ac 38v outs.
Plus 40k Mf or more in quality caps.

Both choices or any other suggestion give me the option of another trafo or a larger replacement.Also chance of lots of swaps of my beloved Vishay resistors etc.They really do work for me.

Just need advice as to which to pick as I need to order today from China as I am away for two weeks.Though I could put off purchase for a few days and try from Croatia or wherever I will be travelling.
Current loan of a commercial amp is driving me nuts.
Ive even looked at the m50s but my long ago impression of Musical fidelity amps was musical but flat.
I have sufficient heat sinking for a battleship but I always preferred the Whitenoise amp very low bias and luke warm.Seemed more dynamic to me.
Thanks for any suggestions.Great progress so far.
  Reply With Quote
Old 27th May 2015, 10:07 PM   #7
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
In case you have not seen this, L20 and L25 also, are discussed in this interesting thread: L20 V8
Post in any thread if you want to discuss any issues - the members who posted may still be reading and able to reply.
Note that there is also L25D which is actually class D and there is at least a short thread in Class D forum here.
__________________
Ian
  Reply With Quote
Old 28th May 2015, 06:50 AM   #8
Calvin is offline Calvin  Germany
diyAudio Member
 
Calvin's Avatar
 
Join Date: Nov 2004
Location: close to Basel
Hi,

type "L12-2" in the search field and click the third hit

jauu
Calvin
  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
I need help, how to charge to renovate sophisticated Solid State amplifiers destroyer X Solid State 36 30th January 2015 01:34 PM
Vietnamese DIY & Solid State Amplifiers quanghao Solid State 32 19th January 2013 11:10 PM
Best books about solid state amplifiers Twisted85 Solid State 24 17th January 2010 01:30 AM
Single ended solid state amplifiers? fotios Pass Labs 8 11th August 2008 07:29 PM


New To Site? Need Help?

All times are GMT. The time now is 11:57 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2