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Adding phono input to NAC
Posted: January 2nd, 2019, 9:24 am
by gozaimas
I'd like to add a phono input to my New Astro City, in order to allow me to run audio directly from a MAME system into the cab, rather than via Jamma (although obviously I want to keep be able to feed audio via Jamma as well, for my original boards). Is there a simple way to do this? Any help gratefully received!
Re: Adding phono input to NAC
Posted: January 2nd, 2019, 10:28 am
by zipper
The easiest thing to do is get a cheap little amp. I've used these before :
https://www.ebay.co.uk/itm/TDA7297-AC-D ... 4902.l9144
You can run 12v from the power supply in the cab, and then run the amplified output to the speakers.
Re: Adding phono input to NAC
Posted: January 2nd, 2019, 12:20 pm
by gozaimas
Perfect - thank you
Re: Adding phono input to NAC
Posted: January 2nd, 2019, 1:43 pm
by zipper
No prob - i found a pic of it stuck on one of my mame machines here:
... and if you want to mix the pre-amp to mono, I jumped these 2 points:
Re: Adding phono input to NAC
Posted: April 20th, 2019, 10:31 am
by gozaimas
finally getting around to hooking this up -- excuse the extremely basic question, but what type of wire should I be using for the connections?
Is 0.25mm Copper Wire 30AWG the right sort?