Lajp77

jp77Down4Sound JP77 RED Amplifier: 3000W RMS - 7 Channel Amplifier. Transform your car audio system with the Down4Sound JP77 RED. This 7-channel amplifier is a powerhouse, delivering a massive 3000W RMS.Down4Sound JP77 Titanium Amplifier | 3000 Watts RMS 7CH. If you're searching for an all-in-one car amplifier that delivers over 3000 Watts RMS of raw powe. $689.99 - $769.98. Options.