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Floating Ground Adapter for Car audio line level signal ...
https://www.diymobileaudio.com/threads/floating-ground-adapter-for-car-audio-line-level-signal.336585/
Bose/Audi designed the system to use a single common between the head unit line out and the Bose amplifier line input, so it is four wires (FR+, FL+, RR+, RL+, Common) with the common not tied to ground, it is a floating common. However, new car audio electronics use a common that is tied to ground, with both the head unit and external amplifiers tying the ground …
Floating ground car audio, bose/audi designed the …
https://magadra-fretta.com/features/expert-tips-properly-wiring-car-audio-system/ojc3315yb1
The floating ground adapter is still an option but you will loss a big deal in the sound quality and power Car Audio information and tutorials to help you understand various car audio theories. Floating ground virtually eliminates ground loop noise 6 Volt Radios/ Positive Ground Radios= Add $95.00. Add RCA style Pre-outs= Add $25.00.
FLOATING GROUND ADAPTER - Scosche
https://www.scosche.com/floating-ground-adapter
FLOATING GROUND ADAPTER. Car Stereo Floating Ground Adapter. Part Number FGAB. $11.99. Car Stereo Floating Ground Adapter. Qty:1 Qty:2 Qty:3 Qty:4 Qty:5 Qty:6 Qty:7 Qty:8 Qty:9 …
Floating ground/common ground - diyAudio
https://www.diyaudio.com/community/threads/floating-ground-common-ground.302123/
2017-01-14 8:20 pm. #6. Most hi-fi amplifiers do not use a floating ground (BTL output), no - you would generally find a good Ohmic connection between speaker negative, input ground and chassis. Since mains transformers mean supply voltages can easily be made as high as you want, it's not generally needed.
audio - DIY simple line out converter for "floating ground ...
https://electronics.stackexchange.com/questions/27534/diy-simple-line-out-converter-for-floating-ground-car-head-unit
On a 25W max power (10V p2p @ 4ohms) balanced (push-pull) high level output factory car audio head unit from which I need to feed a mono amplifier (for subwoofer) that only has an unbalanced line level input (0.15V-3V @ 10kohms), should I make my voltage divider to match the amps' input impedance or simply give it a 1kohms output impedance to make it a little more "universal"?
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