brandon.arnold
Student
Hi all. I would love to get y’all’s opinion or find a vendor or DigiKey part for reasonably good conductors of JAMMA speaker and video signal (very short runs we use in various projects between 1ft and 2m). Maybe shielded, multiple conductor coax of the appropriate gauge is overkill, but if anyone has a recommendation for that, I’d be open to it.
I have noticed noise in speakers and video from JAMMA cables using typical 18-20 GA wire for inputs/speaker/video and 14-16 for power. A lot of times it is simple hookup wire without any shielding, and I’m sure it is a combination of input impedance limitations of the length of the cable and cross-talk between unshielded conductors, for non-DC signals.
As such I would love to have a go-to cabling that may be slightly over-engineered but remove any worry of noise being introduced to the signal.
Power: GND/+5V/-5V/+12V up to 36W DC
Speaker: SP+/SP- or Left +/-, Right +/- around 1W, 4.3 Vrms
RGBS: around 1W, 5.7 Vrms
Any part recommendations for each of these?
I have noticed noise in speakers and video from JAMMA cables using typical 18-20 GA wire for inputs/speaker/video and 14-16 for power. A lot of times it is simple hookup wire without any shielding, and I’m sure it is a combination of input impedance limitations of the length of the cable and cross-talk between unshielded conductors, for non-DC signals.
As such I would love to have a go-to cabling that may be slightly over-engineered but remove any worry of noise being introduced to the signal.
Power: GND/+5V/-5V/+12V up to 36W DC
Speaker: SP+/SP- or Left +/-, Right +/- around 1W, 4.3 Vrms
RGBS: around 1W, 5.7 Vrms
Any part recommendations for each of these?
