Quote Originally Posted by thepadawan View Post
Sir may nakita po akong pioneer deh-6350sd, 3 pre-outs na 4volts po. Okay na po ba yun? Pero ung dominations atom amplifier ko parang 2 pairs of RCA lang nakita ko. Kakailanganin no din po ba magupgrade ng amp para mamaximize ko ung 6350sd? Thanks po pala!
Ganito po yung three rca pre out ng head unit, front, rear, and the sub, and maybe your domination atom amplifier nyo is just a two channel amplifier for driving maybe just the subs or the front speakers, if you used these amp for sub, ang gagamitin mong output from the head unit is the subwoofer output, if you used it for front speakers, you use front output of the head unit and so on. A 4 volts output from the head unit is a good thing(high volt), meaning, you have a great signal input to your amp so that you don't need any signal amplifier in line, a high volt capability also make your amp efficient because the gain setting sets at its lower portion, also in high volt head unit and three rca pree outs, One is sufficient but having two and three allow you fade, or adjust the levels of multiple amplifiers right from the head unit. your said head units now offer 4 volt outputs instead of the usual 1-2 volts. This can be very useful since cars have a lot of electrical noise in them. The 4 volt output is less prone to noise, however, you must be certain that the amplifier or crossover being connected to the output can handle 4 volts or you will not be able to use the extra voltage.