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Hertz CPK 690

$500.00

The latest addition to the Cento PRO line is the CPK 690 system

The latest addition to the Cento PRO line is the CPK 690 system equipped with an elliptical woofer to avail of the 6 x 9 door placements, which are particularly common in the North American market, such as for the models of Toyota and FORD groups. Like the other speakers of the Cento PRO line, the woofer cone is made of pressed paper, the most suitable material to obtain a linear and controlled emission even when the woofer is driven with very high power. All electroacoustic parameters have been optimized for door installations with an improved magnetic group and voice coil for excellent power handling and a lower resonance frequency. The large emission area of the CP 690 increases the woofer efficiency and extends the response down to 35 Hz. The crossover features a low-pass filter on the woofer with a 6 dB/oct. slope and 12 dB/oct. on the tweeter with three levels of attenuation. CPK 690 is dedicated to the young enthusiast who wants a front row seat at their favourite concert while sitting comfortably behind the steering wheel.

Product Highlights

  • Component system with 6″x9″ woofers, tweeters, and external crossovers
  • 6″x9″ pressed paper cone woofer
  • 29mm (1.14″) Tetolon dome tweeter
  • 2-way crossover with three tweeter level options
  • Power handling: 120 watts RMS (360 watts peak)
  • Frequency range: 35-22,500 Hz
  • Sensitivity: 92 dB
  • Impedance: 4 ohms

Physical Specifications

  • Speaker Size: 6″x9″
  • Woofer Weight: 1.69 kg (3.73 lb)
  • Tweeter Weight: 0.07 kg (0.15 lb)
  • Crossover Weight: 0.2 kg (0.44 lb)
  • Woofer Voice Coil Diameter: 30.5 mm (1.2″)
  • Tweeter Voice Coil Diameter: 25 mm (1″)
  • Tweeter Diaphragm Size: 29 mm (1.14″)

Performance Specifications

  • Power Handling – Continuous: 120 watts
  • Power Handling – Peak: 360 watts
  • Frequency Response: 35-22,500 Hz
  • Sensitivity: 92 dB
  • Impedance: 4 ohms

Crossover Details

  • Crossover Type: 2-way
  • Low-pass filter: 6 dB/octave slope
  • High-pass filter: 12 dB/octave slope
  • Tweeter level options: Three levels of attenuation

Electro-acoustic Specifications

  • Diameter (D): 172 mm
  • DC Resistance (Re): 3.2 Ohm
  • Resonance Frequency (Fs): 58 Hz
  • Voice Coil Inductance (Le): 0.33 mH
  • Equivalent Volume (Vas): 22.80 l
  • Moving Mass (Mms): 25.3 g
  • Mechanical Compliance (Cms): 0.30 mm/N
  • Force Factor (BL): 6.9 T*m
  • Total Q Factor (Qts): 0.48
  • Electrical Q Factor (Qes): 0.62
  • Mechanical Q Factor (Qms): 2.2
  • Sound Pressure Level (SPL): 92.5 dB

Design Features

CP 690 Woofer Features

  1. Pressed-paper cone with FEM-optimized geometry, combining rigidity and lightness for a color-free sound
  2. 30 mm (1.2″) double layer voice coil sized to maximize high excursion and power handling
  3. High-density flux ferrite magnet combined with low-carbon polar plates for reduced distortion at high power levels
  4. Compact and transparent three-spoke basket, acoustically combined with a rubber magnet cover for total damping of spurious vibrations
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