HERTZ DCX 690.3 SPEAKERS 
DIECI 3-WAY COAXIAL
GENERAL FEATURES:
An authentic 3-way coax capable of reproducing a wide frequency spectrum. The DCX 690.3 car audio coaxials uses an oversized magnetic group, TPU (Thermoplastic polyurethane) surround, a 60 mm diameter midrange and a PEI dome tweeter. The result is linearity, wide dispersion and extra-ordinary efficiency not found in traditional coax components. An involving, emotional sound, even at high SPL levels.
1. Large motor assembly for mobile voice coil control
2. Pure copper voice coil, wound on Conex former, for maximum lightness
3. Water-repellent treated paper cone
4. TPU surround, for wide excursion and resonance damping.
5. 60mm paper midrange with ferrite magnet
6. DIN size basket protected by abrasion-proof dust paint
7. Tin-plated, high current terminals
8. Silver-plated lead wires for maximum reliability and conductivity
9. Butyl rubber protective cover, against crashes and abrasions
10. Epoxy glue for basket and motor system provides perfect coupling
11. Low carbon content plates for maximum magnetic permeability and high heat dissipation
 
Data table
Power Handling - Peak W            180
Power Handling - Continuous W    90
Impedance Ω                                    4
Frequency response Hz                    45 ÷ 21k
Sensitivity dB SPL                            93
Voice coil Ø mm (in.)                    25 (1.0)
Woofer size mm (in.)                    (6.0 x 9.0)
Tweeter size mm (in.)                    60 (2.5)
Woofer magnet                            High density flux ferrite
Tweeter magnet                            High density flux ferrite
Woofer cone                                    Water-repellent pressed paper
Tweeter dome                                    Water-repellent pressed paper