The Hertz DCX170.3 is a 170 mm two-way shallow-mount coaxial speaker optimized for installation in vehicle doors and other reduced spaces while preserving accurate acoustic reproduction. It pairs a PEI dome tweeter with a Neodymium magnet for clear high frequencies.

Construction includes a TPU surround, copper voice coil wound on a Conex former and a built-in passive crossover to integrate driver and tweeter. The 51 mm maximum mounting depth allows fitment where space is limited.