I’ve been contemplating the best way to distribute multiple power voltages within a single enclosure. I’m building a subwoofer with power amp, bass controller, cross-over, soft start, signal detector, speaker protection, etc. Each board seems to need a different voltage and some are regulated, some not. They are all DC. So far, I’ve thought about:
1) A terminal strip with each voltage on a separate screw. Wire directly from each board to the appropriate screw on the terminal strip.
2) A wiring harness consisting of a bundle of wires each voltage carried separately. This would be daisy-chained from one board to the next, taking off the required voltages with a splice.
3) A hybrid approach, daisy-chaining only like voltage i.e. -15/0+15V, -12/0/+12, -50/0/+50, etc.
The 2nd seems more appealing to me because it would be neatest. Is there a common practice for this? Another alternative I haven't thought of? Are there any drawbacks? Is it bad to use the same +12V to power a preamp, for example, and the coil on a relay? Any suggestions as to how to make the splices if I go with daisy-chain?
TIA Ken
1) A terminal strip with each voltage on a separate screw. Wire directly from each board to the appropriate screw on the terminal strip.
2) A wiring harness consisting of a bundle of wires each voltage carried separately. This would be daisy-chained from one board to the next, taking off the required voltages with a splice.
3) A hybrid approach, daisy-chaining only like voltage i.e. -15/0+15V, -12/0/+12, -50/0/+50, etc.
The 2nd seems more appealing to me because it would be neatest. Is there a common practice for this? Another alternative I haven't thought of? Are there any drawbacks? Is it bad to use the same +12V to power a preamp, for example, and the coil on a relay? Any suggestions as to how to make the splices if I go with daisy-chain?
TIA Ken