The Alpine PDX series of amplifiers is a completely different approach to power than the number one and two choices. If size is your consideration for an amplifier these units will move up possibly higher than where I place them, but I’ll explain my placement a little later.
Alpine of course in known for their excellent approach to fit and finish when it comes to products and the PDX series looks as good as it performs. These amplifiers use what some call digital power, but in reality the proper term is Class-D. What that means to you is more power from a smaller package. The PDX series is the best choice when it comes to space requirements as they are small and thin and since they are all the same package size they can even be stacked.
I place the PDX series form Alpine third because while they deliver excellent power they are slightly outclassed there by the top two choices, other than that they offer built in crossovers and several different power and channel configurations.
