The HD-Series is your portal to the best and fastest solution to premium full-fidelity world-class automotive sound systems. Only the best component have been selected. With CDT revolutionary sound-stage recreation philosophy, no-compromise sound systems can be realized. A performance that has earned our design team countless awards and unanimous praise from around the world. Awarded The HD-Series is your portal to the best and fastest solution to premium full-fidelity world-class automotive sound systems. Only the best component have been selected. With CDT revolutionary sound-stage recreation philosophy, no-compromise sound systems can be realized. A performance that has earned our design team countless awards and unanimous praise from around the world. Awarded