Lexus RX500h DSP Upgrade (Source: LAHBA Audio, Puchong) Lexus RX500h install Mdntoish M10s 12 Channel DSP at Klang Valley (Source: LAHBA Audio, Puchong) Clearer vocals, tighter bass and a wider soundstage, with the factory and controls left exactly as Lexus made them. We have done more than 3000+ Lexus sound system upgrade in Malaysia Lexus models we work on Model Factory system Popular upgrade From (RM) Lexus NX [Standard / Mark Levinson] [DSP + front speakers] [RM3K - RM5K]