Safety GND question Amp6 basic

sts9fan · 4th November 2008, 07:52 PM

I just put together a amp6 basic. It uses a wall wart and a round dc plug. Is it possible to ground the chassis or should i not worry about it? i guess i should at least get plastic standoffs.

albin · 4th November 2008, 08:16 PM

Good question.Do you have 3 pin plugs in USof A .wire a seperate earth wire to a pin & plug it in to the wall,connect to chassis.Anyone else correct me.important stuff.

infinia · 4th November 2008, 08:16 PM

As long as the wall wart has safety markings i.e. UL CSA etc, and is under 24V (SELV) your good to go. An input fuse would be a good idea anyway.
Ground is mainly provided for safety. If you have EMI RFI, ground loops, then a good filtered barrier strip might be an idea.

edit> hopefully the DC input has some EMI filter/s on the amp?
Switching amps are sources of noise so conn to grounds would make other things worse, unless you have very elaborate real earth grounds.

Saturnus · 4th November 2008, 10:55 PM

We're talking very low voltages here, around 12 volts, so it really doesn't matter. The AMP 6 BASIC has an input fuse already on the board, and there's basically no way you can damage them if you soldered everything in right.

Sturdy little buggers. I used mine on festivals where you in the mornings could see dew dripping off the board it was so damp, and the sound was still perfect.

4th November 2008, 07:52 PM	#1
sts9fan diyAudio Member Join Date: Apr 2006 Location: MA	Safety GND question Amp6 basic I just put together a amp6 basic. It uses a wall wart and a round dc plug. Is it possible to ground the chassis or should i not worry about it? i guess i should at least get plastic standoffs.

4th November 2008, 08:16 PM	#2
albin diyAudio Member Join Date: Aug 2008	safety earth,not sure Good question.Do you have 3 pin plugs in USof A .wire a seperate earth wire to a pin & plug it in to the wall,connect to chassis.Anyone else correct me.important stuff.

4th November 2008, 08:16 PM	#3
infinia diyAudio Member Join Date: May 2005 Location: Californication	As long as the wall wart has safety markings i.e. UL CSA etc, and is under 24V (SELV) your good to go. An input fuse would be a good idea anyway. Ground is mainly provided for safety. If you have EMI RFI, ground loops, then a good filtered barrier strip might be an idea. edit> hopefully the DC input has some EMI filter/s on the amp? Switching amps are sources of noise so conn to grounds would make other things worse, unless you have very elaborate real earth grounds. __________________ like four million tons of hydrogen exploding on the sun like the whisper of the termites building castles in the dust

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4th November 2008, 10:55 PM	#4
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	We're talking very low voltages here, around 12 volts, so it really doesn't matter. The AMP 6 BASIC has an input fuse already on the board, and there's basically no way you can damage them if you soldered everything in right. Sturdy little buggers. I used mine on festivals where you in the mornings could see dew dripping off the board it was so damp, and the sound was still perfect.

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