Package includes: 2 rockville w8k9d4 8 inch 2000w car audio subwoofer dual 4-ohm sub cea compliant 1 rockville dual 8 subwoofer enclosure sub box for 2009-up ford f150 super crew 1 dual sub box enclosure installation kit: speaker wire screws spade terminals 1 rockville krypton-m3 4000w peak 1000w dyno-certified rms mono 1 ohm car amplifier amp remote 1 rockville rwk41 4 gauge complete car amp wiring installation wire kit with rca s features: rockville w8k9d4 k9 series 8 dual4-ohm car subwoofer peak power handling: 2000 watts program power handling: 1000 watts cea rated rms power handling: 500 watts 2.5 4-Layer asv voice coils wound with ofc wire made in usa this voice coil is stable up to 200 degrees celcius the voice coil windings are made in the usa features: rockville krypton m3 4000 watt peak and 1000w rms class d 1 ohm stable mono amplifier with voltage display dyno certified rms power ratings: certified dyno test less than 1 % thd use these ratings when comparing with top brands such as kicker rockford fosgate etc 1 ohm: 1000 watts x 1 channel 1% thd n 71% efficient 2 ohm: 700 watts x 1 channel 1% thd n 79% efficient 4 ohm: 400 watts x 1 channel 1% thd n 84.5% Efficient peak: use these ratings when comparing with the top budget brands such as boss power acoustik etc 1 ohm:4000 watts x 1 channel 2 ohm:2800 watts x 1 channel 4 ohm:1600 watts x 1 channel digital voltage display on amp accurate within 0.15V power protect clip led indicators on the front panel video of r...
