Hertz Cento Pro CPX 690

The CENTO PRO CPX 690 are first-class, oval 6"x9" speakers from Hertz. As 3-way speakers, they offer a highly dynamic sound experience, especially for bass lovers. With specially developed tweeters and super tweeters that use neodymium magnets and Tetolon membranes, the CPX 690 offers an exceptional sound experience. In addition to their acoustic performance, they are characterized by their optimal cooling performance, as their robust baskets have a radial venting system. Another highlight is their stylishly designed grille made of durable ABS plastic and metal.

• Size mm (inch) (6 x 9)
• load capacity - RMS W 120
• load capacity - Peak W 360
• impedance Ohm 4
• tweeter membrane mm 32 
• woofer voice coil Ø mm 30 
• tweeter voice coil Ø mm 28 
• frequency response Hz 35  - 24k
• Woofer magnet size W x D x H mm 90 x 40 x 20 
• tweeter magnet size  W x H mm 27.8 x 3 
• Weight kg 1.63 
• woofer magnet ferrite
• tweeter magnet neodymium
• Membrane Water-repellent press paper
• dome Tetolon
• Xmech mm 7.5 

• D mm 172
• Re Ohm 3.4
• Fs Hz 68
• Le mH 0.53
• Vas I 15,8
• Mms g 26.5
• Cms mm/N 0.21
• BL T*m 6.0
• Qts 0.77
• Qes 1,10
• Qms 2.7
• Spl dB 94

• A  237.5 mm
• W 225 mm
• C 103 mm 
• D 85 mm 
• E 269 mm 
• F 28.5 mm 

•   Pressed paper membrane with FEM-optimized geometry that combines stiffness and lightness for a color-free sound.
•   Wide rubber suspension for long travel and excellent sound absorption.
•   High density ferrite magnet combined with low carbon polar plates for reduced distortion at high power levels.
•   Metal basket combined with a vibration-damping rubber magnet cover for general dampening of disruptive vibrations.
•   Neodmium tweeter with soft Tetolon fiber dome and mobile 28 mm voice coil for distortion-free reproduction of medium to high frequencies.
•   Neodmium super tweeter made of Tetolon fiber with a mobile 20 mm voice coil to compensate for the natural roll-off of the high frequency range in horizontal installations.
•   The front panel geometry has been optimized using FEM (finite element modeling) technology for a linear frequency response in off-axis installations.
•   Stylish grille with high-strength ABS plastic frame with metal surface combined with a protective metal mesh.