* Rockford Fosgate R500X1D: This 500-watt monoblock amplifier is another great option for powering two Alpine Type R subwoofers. It features a Class D digital design, which makes it very efficient and powerful. It also has a built-in variable low-pass filter and bass boost.
* JL Audio XD500/1v2: This 500-watt monoblock amplifier is a top-of-the-line choice for powering two Alpine Type R subwoofers. It features a patented NexD2 switching power supply, which provides clean, efficient power to your subwoofers. It also has a built-in DSP with multiple equalization and crossover options.
