Some questions about a gainclone for my television and stereo setup - 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
Thread Tools Search this Thread
Old 12th August 2015, 02:48 PM   #1
diyAudio Member
Join Date: Sep 2009
Default Some questions about a gainclone for my television and stereo setup

Hello all, I have some questions and after almost a day of reading I did not find too many answers. hopefully they are easy to answer for the experts over here.

Since the sound of my LG smart tv is not that awesome I hooked up an old 2.1 set from philips. The improvement in sound quality was already dramatic and that inspired me to build speakers for it. (High Jack, alias FirstTime 14 - Oktober 2014 - Lautsprecherbau-Magazin 2014 | Lautsprecherbau) for those interrested, my budget is <75 euros per speaker, wood etc excluded.

now since I would also need and amplifier to power these speakers I was considering building a gainclone. I already found some sources for cheap transformers (25-40 euro) and I saw some nice looking kits on ebay and aliexpress. after looking those up on these forums I found out that quite some people complain about the grounding and lack of filtering (thiele) circuits. I looked at the often recommended boards but these also seem to lack the thiele filter. I would prefer ebay/aliexpress because ordering for 80 euro from would mean that I get loaded with import tax while a cheap ebay kit does not have the tax problems.

so the main questions:
-can anyone recommend a kit from the far east that works well (I will replace the chip anyway because those are probably fakes)
-how essential are all those extra filters?

side question:
My TV only offers optical out, while my decoder offers a nice anolog out. since I want to use netflix too I will need a (cheap) way to get the optical out to work with the gainclone. any ideas?

  Reply With Quote
Old 12th August 2015, 07:02 PM   #2
jjrh88 is offline jjrh88  Canada
diyAudio Member
Join Date: Feb 2015
Personally I have used the XY boards LM3886 Amp Board+rectify filter+ LM3886TF KIT assembled-in Integrated Circuits from Electronic Components & Supplies on | Alibaba Group (I bought from ebay, but those look exactly the same) with all stock components and no complaints from me or my friend who I built one for.

I have been meaning to build a more fancy lm3886 with all the expensive components and compare.

My friend and I both found that sticking a PGA2311 board (I used one of the kits from aliexpress) makes a big difference. It really seemed to bring the lm3886 to life.

Just keep in mind neither of us are really audiophiles, our sources are from computers/cellphones/mp3 players and in both cases we were replacing old 'retro' garage sale amps.

For the optical out you will need a DAC - kinda surprised your TV doesn't have a 3.5mm output along with the optical, maybe newer tv's lack it.
  Reply With Quote
Old 12th August 2015, 10:05 PM   #3
diyAudio Member
Join Date: Sep 2009
Good news everyone!

It does have a headphones out, it is just a weird looking one. So no need for a DAC.

I ain't no audiophile either, but I do hear the difference between the built in speakers and a 30 euro set of pc speakers. A proper amp and speakers should sound even better but I don't want to spend a load of money on it.
  Reply With Quote


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
Gainclone 2.1 setup portreathbeach Chip Amps 46 7th August 2011 05:19 PM
Advice for hearing impaired setup on a new television? peace brainerd Solid State 33 8th January 2011 02:21 PM
Gainclone humming in new setup drfrink24 Chip Amps 25 24th May 2005 03:26 PM
Stereo setup rs1026 Chip Amps 2 24th November 2004 05:01 PM

New To Site? Need Help?

All times are GMT. The time now is 06:36 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