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Old 02-23-2022, 07:51 AM   #31808
Scooby Specialist
Member#: 348055
Join Date: Feb 2013
Location: San Diego
2013 Impreza 5MT


Originally Posted by IHaveAHorse View Post
Should I be looking into a high output alternator for a total ~1250W audio system in my car? 1000W Class D amp + 250W Class A/B? I don't tend to listen to music at or near max volume for more than a couple minutes at a time, if that, and I don't do that often, if that makes any difference.

I know ideally I should just upgrade it to be safe, but taking into account that it's $500 and I'd probably have to put another at least $100 into wiring a big 3 upgrade, is it that necessary for 1250W total?


I installed everything, install went well but when the sub is playing within a few notches of max volume and playing something with heavy bass the headlights dim quiiiite a bit. I guess I need to start with a "big 3" upgrade as everyone always suggests in these situations. I'm not sure if that will help, but if I end up needing to upgrade the alternator, that will be necessary anyway.
Been running the same wattage since owning the car, 2013. Retrofitted headlights though, never seen them dim.

A noise started in my engine bay the other week and from what I gather it's the alternator. Don't know if I should bother with HO since San Diego has plenty of scrap yards.
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CalTech87 is offline   Reply With Quote