Planet Audio AC3000.1D Anarchy Series Car Amplifier - 3000 High Output, Class D, Monoblock, 1 Ohm, Low Level Inputs, Low Pass Crossover, Mosfet Power Supply, Hook Up To Stereo and Subwoofer

DS18 PRO-ST 1.9" Replacement Upgrade Bullet Compression Tweeters with Crossovers- Car OEM Tweeter Upgrade Kit for Many Subaru/Toyota Models - Replacement for H631SFJ101 and H631SFJ100 (Pair) (Renewed)

Planet Audio PA300 Car Digital Bass Generator - Remote Subwoofer Level Control, Fine Tune Your Low Range Speaker Subwoofer Frequencies, Equalizer, DPS Audio Processor, Crossover

Planet Audio AC2600.2 Anarchy Series 2 Channel Class A/B Car Amplifier - 2600 High Output, 2-8 Ohm Stable, High/Low Level Inputs, High/Low Pass Crossover, Full Range, Hook Up to Subwoofer for Bass

Sound Storm Laboratories EVO3000.1 Evolution Series Class D Monoblock Car Audio Amplifier - 3000 High Output, 1 Ohm Stable, Low Level Inputs, Low Pass Crossover, MOSFET, Hook Up to Subwoofer for Bass