Discover the Cento Pro CPK 690, the latest in the series of 6x9 inch oval speakers from Hertz. This system features an elliptical mid-bass driver commonly used in American cars like Ford and Toyota. Made from high-quality pressed paper, the cone of these speakers is ideal for clear and controlled music playback, even at high volumes. With optimized electro-acoustic parameters and a specially designed voice coil and magnet, the CPK 690 delivers outstanding performance and an exceptionally low resonance frequency. Whether you're a young music fan or simply want the best listening experience in your car, the CPK 690 brings you the premium audio quality you've been looking for.

Technical Specifications

• Size mm (inch) (6 x 9)
• Power Handling - RMS W 120
• Power Handling - Peak W 360
• Impedance Ohm 4
• Tweeter Diaphragm mm 29
• Woofer Voice Coil Ø mm 30.5
• Tweeter Voice Coil Ø mm 25
• Sensitivity dB SPL 92
• Frequency Response Hz 35 - 22.5k
• Crossover LP 6 dB / Oct. - HP 12 dB / Oct.
• Crossover Type 2 Way
• Weight - Woofer kg 1.69
• Weight - Tweeter kg 0.07
• Weight - Crossover kg 0.2

Electro-Acoustic Specifications

• D mm 172
• Re Ohm 3.2
• Fs Hz 58
• Le mH 0.33
• Vas l 22.80
• Mms g 25.3
• Cms mm/N 0.30
• BL T*m 6.9
• Qts 0.48
• Qes 0.62
• Qms 2.2
• Spl dB 92.5

FEATURES

• CP 25:
• 29 mm (1.14 in.) Soft Tetolon® diaphragm and 25 mm (1 in.) voice coil cooled with ferrofluid, for a natural and detailed reproduction of music with the finest nuances.
• “Center Tuning Duct” geometry, for a low resonance frequency and reduced harmonic distortion.
• Extremely strong neodymium magnet, optimized for maximum control under high load in the mid-high frequency range.
• The rear chamber is filled with damping material for a low resonance frequency and low coupling to the mid-bass driver.
• Faceplate geometry optimized with FEM (Finite Element Modeling) technology for a linear frequency resonance in off-axis installations.
• Wide range of accessories for easy installation in original mounting locations.
• CP 690:
• Pressed paper diaphragm with FEM-optimized geometry combines stiffness and lightness for distortion-free sound.
• 30 mm (1.2 in.) two-layer voice coil designed for maximum excursion and maximum power handling.
• Extremely strong neodymium magnet combined with low-carbon pole plates that reduce distortion at high volume.
• Compact 3-spoke basket acoustically combined with a rubber protector for the magnet to damp vibrations.
• CPCX 690:
• Tweeter level adjustable in three positions (-2, 0, +2 dB) for optimal tonal balance that the listener can set themselves.
• The crossover frequency for the tweeter is at 3.1 kHz with a slope of 12 dB/oct., and a slope of 6 dB/oct. for the mid-bass driver. This ensures good sound staging in the car.
• 160 V capacitors with low internal resistance and pure copper coils provide maximum transparency in the high frequencies.
• Compact metallic-look design for easy installation, with ventilation slots for efficient heat dissipation.