LM3886 Amplifier help

Jack Bruce · 15th January 2007, 06:02 PM

I am planning to build an amplifier soon.

I need some help with wiring and choosing parts.

here is what I have for the output stage.
resistors are 10 watt.

will it work for a sub-woofer?

jaudio · 15th January 2007, 11:22 PM

Why not use 3watt resistors, 10watts resistors are overkill.

I’m not sure but I think the resistor-capacitor goes right after the output, before the resistor-inductor

sigurd · 15th January 2007, 11:34 PM

Don't use the 10 ohm resistor and the inductance. It is used for long loudspeaker connection wires. It can ossilate. Simply use the zobel. 0,1 microfarad and a 2,7 Ohm resistance.
Succes!

Jack Bruce · 16th January 2007, 12:25 AM

ok thanks

15th January 2007, 11:34 PM	#3
sigurd diyAudio Member Join Date: Jan 2007 Location: belgium	LM3886 Don't use the 10 ohm resistor and the inductance. It is used for long loudspeaker connection wires. It can ossilate. Simply use the zobel. 0,1 microfarad and a 2,7 Ohm resistance. Succes!

16th January 2007, 12:25 AM	#4
Jack Bruce diyAudio Member Join Date: Jan 2007	ok ok thanks

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15th January 2007, 11:22 PM	#2
jaudio diyAudio Member Join Date: Oct 2004	Why not use 3watt resistors, 10watts resistors are overkill. I’m not sure but I think the resistor-capacitor goes right after the output, before the resistor-inductor

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