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littlerick 8th September 2012 04:11 PM

Ebay kits
Ive been looking at the 3886 kits on ebay, as far as price goes they are pretty cheap.

Anybody got any good or bad feedback on any kits available. I prefer to get it and build as per instructions, not yet good enough to start changing stuff.

Anyway what i want to build is a 4 channel 3886 with 2 used as speaker output and 2 bridged to power a sub. planning on dual mono for output speakers plus single transformer for sub. 3 transformers, 2 x kits.

At around 30 and free post it seems a good price.

bcmbob 9th September 2012 10:28 AM

Your question is too broad. There are thousands of builders who have successfully implemented a wide variety of kits. If there is something on eBay that you like and can link to, that would provide a starting point to answer your question.

littlerick 9th September 2012 11:06 AM

I was just looking to see if anyone had got products that were either a complete waste or if there was actualy some good kits.

I got a 4780 kit from audiosector and the amp is a great piece of kit, i want to do another, but my budget is tight so i am looking at the cheaper kits. If I had the extra cash I would certainly use audiosector or chipamp, but if a lot of people have had dodgy stuff off ebay, maybe the price is not so tempting.

Just getting feedback before i commit.

donpetru 9th September 2012 11:15 AM

I think that is a fair price (approximately 16 USD with free shipping):
LM3886TF Amplifier Board DIY LM3886 Components KIT Single-channel Brand NEW | eBay

frank1 9th September 2012 11:46 AM

I bought 16 chip-amp PCB's from a Hong Kong seller for a project.
All failed to work.
One plated-through hole wasn't through-plated so easily fixed.
I tried to inform the seller but I just couldn't get him to understand. The only reply he gave me was he'd sold thousands......
Successful outcome though.

Arty 9th September 2012 10:08 PM

comes into question why would lm 3886 need a pcb at all..

save the pcb hassle for projects complicated enough.
//if there is any..//

littlerick 9th September 2012 11:03 PM

I looked at the P2P but i dont think im good enough to take it on yet.

bcmbob 10th September 2012 09:28 AM

Rich, Don'tknow if you have seen it, but there is a lot of information on the kit in post # 4. Could be helpful to a new builder.

CharlieLaub 10th September 2012 03:26 PM

Next time, try to use the "Search" feature of the forum before asking a question that has been asked 10's of times before...

For instance, here is a thread that I posted in:

I have purchased over 20 LM3886 chip amp boards via Ebay and all have worked 100%. Check my post #21 to see which I am referring to. Avoid boards with onboard power supply, protection, etc.etc. Just get the single channel board that is shown in my post and you will be fine.


Headbanger 10th September 2012 04:27 PM

LM3886 is easy, really easy to p2p, LM4780 was harder to do. And my ears always say p2p sounds better, no idea why. Maybe due to compactness, short tracks.

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