DD AUDIO-SS5 - (NLA-2017) SS5 - Designed & Engineer... RRP: $1,349.95 More info DD AUDIO-SW6.5 - (NLA-2014) SW6.5 - Designed & Engine... RRP: $399.95 More info DD AUDIO-X1.1 - (NLA-2016) X-1.1 - Designed & Engine... RRP: $549.95 More info