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Old 3rd December 2014, 03:33 AM   #1
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Default BTL LM3886 board/kit??

Anyone know of a BTL LM3886 board or kit or one of those asian eBay boards/amps?? I cant seem to find one.

One I found on eBay listed as a BTL amp isnt. if you look at the board cloesly you can see the output is labeled + and GND and you can see the trace is connected to the CT of the power supply jacks and the Input ground so nope not a BTL....


Zc
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Old 3rd December 2014, 04:13 AM   #2
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Assembled LM3886 BTL 2.0 Power amplifier board 100W+100W-in Amplifier from Electronics on Aliexpress.com | Alibaba Group
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Old 4th December 2014, 10:09 AM   #3
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Thanks.that would work. I only need one channel but for testing that would work.
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Old 6th December 2014, 06:12 AM   #4
ttan98 is offline ttan98  Australia
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Hi,

Becareful your speaker's impedance does not fall below 4ohm then power amp will fail.
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Old 7th December 2014, 01:54 PM   #5
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The load the BTL set up I am using it for would see would be about 12-20 ohms so a very easy load to drive even for a BTL amp.
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Old 8th December 2014, 10:58 AM   #6
AndrewT is offline AndrewT  Scotland
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So each amp would see a 6 to 10ohms load.

That is not "a very easy load". That is about what a normal 8ohms speaker shows as a reactive load.
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