The Super Air Nautique G21 comes standard with the complete JL Audio M6 Series Elite stereo package with DSP technology. This includes the JL Audio MM100s head unit, six JL Audio M6 speakers throughout the boat, one 10” subwoofer and an 8-channel amplifier. Opt up to the Studio Elite package that includes two 10” subwoofers, the JL Audio Wavefront™ and a JL Audio Monoblock Amplifier.