Kicker KEYLOC (47KEYLOC) Smart Line-Out Converter
2-channel Active Line Output Converter, Automatic Frequency Response Detection and Correction, Test Tones Available, Manual Programming with all-pass Option to Remove Factory Phase Issues, Output Gain

Audiocontrol THE EPICENTER MICRO Bass Restoration Processor
ParaBASS Bass Shaping, Speaker and Line Level Inputs, Load Matching Circuit, Multiple Trigger Modes, Dual Knob Dash Mount Control Included

Audiocontrol LC2i PRO 2-Chan Output Converter w/ EQ
Two Channels of Active Speaker Level inputs (Up to 400 Watts RMS/Ch), AccuBASS equalization, Threshold and Boost controls, Selectable GTO™ Auto sensing turn-on circuit, Optional Dash Bass Remote

Audiocontrol THE EPICENTER Bass Restoration Processor
Digital Bass Restoration System, Play Portable Music like iPods With Thunderous Bass, 13.5 Peak Signal Capable, Woofer Protection Circuitry, Dash-Mounted Remote Control Included

Audiocontrol THE EPICENTER WHITE Bass Restoration Processor
Digital Bass Restoration System, Play Portable Music like iPods With Thunderous Bass, 13.5 Peak Signal Capable, Woofer Protection Circuitry, Dash-Mounted Remote Control Included

Audiocontrol LC2i BLACK 2-Chan Output Converter w/ EQ
Two Channels of Active Speaker Level inputs (Up to 400 Watts RMS/Ch), AccuBASS equalization, Threshold and Boost controls, Selectable GTO™ Auto sensing turn-on circuit, Optional Dash Bass Remote

Audiocontrol THE EPICENTER IN-DASH In-Dash Bass Restoration
Bass Maximization Circuitry, Chassis Mounted 160 dB, Microphone and SPL Display, Peak Hold Capabilities, ParaBASS Equalization, Battery Voltage indicator, Speaker Level or Line Level Inputs