✓ Designed for HELIX DSP - DirectDSP input perfectly tuned for highest signal quality and performance

P500X1bdClass-BD mono amplifier1 x 150/300/500 Watt/RMS at 4/2/1 ΩHigh-pass/low-pass 50-250 HzPunch EQ 0-18 dB Bass Boost (45 Hz)Dimensions: 197 x 61 x 280 mm

Cable length: 120 cm

50 mm (2") voice coil

Dimensions (W × L × H): 135 × 322 × 52 mm

Crunch GP800V2 80mm Flair ✓ Designed for HELIX DSPGTi GP SERIES 20 cm (8") active subwoofer system The integrated 100 watt RMS power amplifier and the built in 8 inch subwoofer deliver terrific bass power for your audio system. Once the GP800v2 is installed under the seat, it can be conveniently operated from the driver's seat using the remote control. Features: Low pass filter 40~150 Hz Bass boost 0~12 dB Phase switch 0 180 RCA inputs, high level inputs Auto power on function Bass level remote