SoundsGood - Hertz Hi-Energy 10" 900W 4 Ohm Dual Voice Coil Subwoofer The HX 250D5 subwoofers were designed to reproduce the very lowest octaves of the audio spectrum with precision, impact and
Dieci Subwoofers - Hertz car audio systems | The Sound Experience
Hertz MP 250 D2.3 Mille Pro Series 10" subwoofer with dual 2-ohm voice coils at Crutchfield
Hertz SPL Show SV250.1 10" 500W 4 Ohm Midrange 10" Pro Car Audio Driver Speaker