Do I need a bigger alternator, a new battery or maybe larger cables to the amp?
It sounds like your amplifier is asking for a bit more electrical current, at times, than the vehicle has to offer. During deep bass notes the current requirement sharply rises, momentarily pulling the vehicles system voltage down. Lets take a look at your vehicles electrical system and how it can be beefed up. Your battery serves several purposes. It stores energy for engine-off accessory usage, starting the engine, and while driving, it acts as an electrical shock absorber, helping to stabilize system voltage. Should the alternator fail to function properly, the battery can also provide needed energy to limp you home. Each vehicle has a recommended battery capacity, which is rated in CCA – cold cranking amps. Its generally possible – and not a bad idea – to install a higher-CCA battery. Such batteries might be a more efficient design or slightly larger in physical size. Your alternator is a mechanically driven generator. Depending on its size, which is determined by engine displaceme