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APX 690



COAX 6″ x 9″


300 W Peak Power


4 ohm

The APX 690 features an exclusive 40 mm horn loading dome tweeter that contributes to maximize efficiency up to 96dB SPL and an acoustics lens specifically designed and applied to the tweeter to increase dispersion in the high frequency range.To strengthen the emission of very high frequency ranges otherwise affected by off-axis positioning compared to the listening point, the APX 690 featuring a supertweeter.

Technical Specs

Elliptical Size 6 x 9
Woofer Size 690 mm
Tweeter Size 40 mm
Super Tweeter Size 15
Woofer Power Handling - Peak 300 W
Woofer Power Handling - Continuous 100 W
Woofer Impedance 4 Ohm
Woofer Frequency Response 40 - 23k
Woofer Magnet Size 90 x 32 x 15
Woofer Voice Coil Diameter 25 mm
Tweeter Voice Coil Diameter 20 mm
Xmax 3.5 mm

Electric-acoustic Specs

D 171 mm
Re 3.2 Ohm
Fs 60 Hz
LE standard 0.2
Vas 36 l
Mms 16.6 g
Cms 0.5
Bl 5.3
Qts 0.6
Qes 0,7
Qms 6.7
Woofer Spl 96 dB


Weight 1.225 kg
Elliptical B1 222 mm
Elliptical B2 151 mm
Elliptical Dimension A1 238 mm
Elliptical Dimension A2 162 mm


Dimension C 96 mm
Dimension D 81 mm
Dimension F 25


  1. Horn Loaded Tweeter: 40 mm horn loaded dome tweeter
    contributing to its incredible efficiency of up to 96 dB SPL.
  2. Acoustics lens applied to the tweeter, specifically designed to
    increase dispersion in the high frequency range.
  3. PEI (Polyethylene injected) super tweeter employed to strengthen
    emission of very high frequency ranges otherwise affected by
    off-axis positioning common to rear deck installations.
  4. Water-repellent treated paper cone, featuring a profile developed
    with FEM (Finite Element Method) simulation technology and
    optimized with the Klippel Scan Vibrometer.
  5. Pure copper mobile voice coil, wound on Kapton former, for
    better thermal and mechanical capacity.
  6. TPU (thermoplastic polyurethane) sphere with unique “triple wave” profile for maximum linearity of excursion.
  7. Polycotton spider material ensuring reliable performance and
    linear response to musical transients.
  8. Large motor assembly, optimised with FEM (Finite Element Method)
    technology, for stable control and linear excursion.
  9. Low carbon content plates for maximum magnetic permeability
    and high heat dissipation.
  10. Compact basket, protected by abrasion-resistant and scratch-proof
    coating, the motor affixed with damping epoxy adhesive.
  11. High current fast-on terminal with temperature resistant plastic
    cover, protecting it against accidental short circuits.
  12. Developed with the KLIPPEL suite.

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