Hertz Energy ECX690.5



Hertz Energy ECX690.5 – 6″ x 9″, 3-way Coaxial

The Hertz Energy ECX690.5 is a three-way coaxial, features a dome tweeter with high-energy magnet as well as a PEI supertweeter with built-in crossover, providing maximum efficiency and extended high-frequency response.
Its large motor assembly and rubber magnet cover ensure excellent mobile voice coil control and mechanical damping to the basket and motor structure, providing fluid, undistorted acoustic emission.



  • Power Handling – Peak W 300
  • Power Handling – Continuous W 100
  • Impedance Ω 4
  • Frequency response Hz 40 ÷ 23k
  • Sensitivity dB SPL 95
  • Woofer size mm (in.) (6 x 9)
  • Tweeter size mm (in.) 40 (1.58)
  • Supertweeter size mm (in.) 15 (0.6)
  • Woofer Voice Coil Ø mm (in.) 25 (1.0)
  • Tweeter voice coil Ø mm (in.) 20 (0.78)
  • Woofer magnet High density flux ferrite
  • Tweeter magnet High density flux ferrite
  • Woofer cone Water-repellent pressed paper
  • Tweeter dome PEI
  • Supertweeter dome PEI



1. Water-repellent treated paper cone, butyl rubber surround.
2. Pure copper voice coil wound on aluminium former, for very good thermal
and mechanical capacity.
3. Large motor assembly for excellent mobile voice coil control.
4. Low carbon content plates for maximum magnetic permeability and high heat
5. Rubber magnet cover provides damping to the basket and motor structure
and protects from abrasions and damages.
6. DIN size basket coated with scratch-proof, corrosive-resistant material.
7. Tin-plated, high current terminals.
8. Silver-plated lead wires, for maximum reliability and conductivity.
9. Epoxy glue for basket and motor system provides perfect coupling.
10. Curve memory Nomex spider for consistent, reliable performance.
11. High energy neodymium magnet tweeter.
12. RHFC, Rotary High Frequency Contour; adjustable for perfect off-axis
dispersion and frequency response, according to the listening position.



Owner’s Manual

Technical Datasheet

Freq. resp. Diagram



There are no reviews yet.

Be the first to review “Hertz Energy ECX690.5”