R4002

Wired this to my door speakers and a small sub, and the HP/LP filters made dialing in the crossover way easier than my old amp. Runs cool at 2 ohms too, even after an hour of loud driving.

Wired this to a single 10-inch sub and the remote bass knob is a game changer since I can dial in the low end from the driver's seat. The low-pass filter keeps the vocals out of the sub cleanly. Two ohms stable too, so it's not straining.

Put this on my door speakers and a 10-inch sub, and the built-in HP and LP filters let me dial each in without extra crossovers. The remote subwoofer control is genuinely handy since I can tweak bass from the driver's seat. Runs cool for a Class A/B too.