voltage drop?

is there anyway that u can keep the same voltage that your alternator is putting out in the rear of the car at the amps at all times.lets say if u have 14.8 volts at the alternator then u get a big bass hit the voltage at the amps goes to 13.2 then back up then the second deep note it goes to 12.7 volts then back to normal voltage i just want to get the maximum out of my amplifier it is a jbl 1200.1

Get a bigger alternator.

Mad Scientists wrote: On a related  note, has anyone done any testing to see how quickly an alternator can react to a momentary current surge?..  Jim

It will depend on the internal impedance of the alternator. It will all depend on Ohm's Law, and how it would apply to DeltaT. The lower the internal impedance, the faster it can respond. It is not ALL just the internal impedance, it will also depend on how fast the supporting electronics (read: Voltage Regulator)are. After all, the alternator is nothing more than a transformer, right?It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Hang on, if the voltage is dropping that the SOURCE voltage is dropping too. THis means that the voltage at the alternator is dropping too. Only way to fix it is to get a larger alternator OR get a capacitor to temporarily smooth out the voltage.