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Sundown Full Bridge lineup


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I choose to upgrade my amp to the SFB-1500d. Seen the videos and thought why not, good power and small size. Well I get the box and no instructions, no fuse rating, nothing. Go to Sundown website and no info anywhere on the full bridge lineup. Has anyone purchased/ installed one of these yet. Any info you can give on input sensitivity, fuse, etc. I'm having trouble setting the gains correctly and seem weird that they would have products with no web info.

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  • 2 months later...

I have the SFB 8000 and the lack of documentation is a frustrating. As for fuse rating you figure that with math. RMS power divided by 13.8 volts gives you amperage required. Divide that number by .7 for efficiency. That gives you a realist idea of what current the amplifier will need to give you RMS wattage. 

 

OR you put in the largest fuse for rated amperage of the wire you are using, ie 125 amp 4 awg, 325 amp 1/0 awg.

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  • 2 weeks later...
  • 2 months later...

OK this is an older post BUT I thought this would be the most appropriate place to add the link I recently came across

 

https://sundownaudio.com/wp-content/uploads/2021/01/SFB-Amp-Manual.pdf

 

Finally have a manual for SFB/SIA line of full bridge.

 

Cheers

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