HERTZ MP 250D2.3 Mille PRO dual voice coil subwoofer 2+2 Ohm

The Hertz MP 250D2.3 Mille PRO is a dual-voice-coil subwoofer designed to deliver high output in a compact size. The Mille PRO speakers were developed with that goal in mind, and by optimising the manufacturing processes of the Hertz Mille Legend range, the brand has made its flagship production technology and materials available to a wider audience.

Like the Legend series, the cone is made from mineral-enriched pressed paper. Its V-cone profile increases stiffness, helping the cone move like a piston. The surround is made from high-purity butyl rubber (IIR-butyl), and the lightweight die-cast aluminium basket, identical to that of the Legend range, provides mechanical damping for clean, precise sound.

A dedicated cooling system removes the need for a large rear vent. The clip-in speaker terminals allow secure connection of 8 AWG speaker cable.