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Hertz Cento Pro CPK 690 6"x9" Speaker Set
SKU:  CPK-690
EAN:  8018823130394

Cento Pro CPK 690

SKU:  CPK-690
EAN:  8018823130394

Technical Highlights

  • Power 120W RMS, impedance 4 Ohm, frequency response 35-22.5kHz.
  • Neodymium magnet, Tetolon membrane, low resonance frequency.
  • 3-way system, optimized geometry, distortion-free sound.
  • More technical details
Normal price €219,00
Normal price €219,00 Selling price €219,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 6, - Jun 9,
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Normal price €219,00
Normal price €219,00 Selling price €219,00

Cento Pro CPK 690 by Hertz

The Cento Pro CPK 690 is a 6 inch x 9 inch Speaker Set from Hertz with a 2-way design. The power handling is 120 W RMS and 360 W Peak at 4 Ohm, with a sensitivity of 92 dB SPL and a frequency response of 35 Hz to 22.5 kHz. The Tweeter uses a 29 mm Soft-Tetolon diaphragm and a 25 mm voice coil with ferrofluid cooling, as well as a Center Tuning Duct, neodymium magnet, damped rear chamber, and a FEM-optimized faceplate geometry. The mid-bass driver features a pressed paper diaphragm with FEM-optimized geometry, a dual-layer voice coil, a neodymium magnet with low-carbon pole plates, a compact 3-spoke basket, and a rubberized magnet cover. The CPCX 690 Crossover offers an adjustable high-frequency level in three steps -2 dB, 0 dB, +2 dB, a crossover frequency of 3.1 kHz, slopes of 12 dB/Oct for the Tweeter and 6 dB/Oct for the mid-bass driver, as well as 160 V capacitors and pure copper coils in a compact housing with ventilation slots. The weights are 1.69 kg for the woofer, 0.07 kg for the Tweeter, and 0.2 kg for the Crossover. Electroacoustic parameters: D 172 mm, Re 3.2 Ohm, Fs 58 Hz, Le 0.33 mH, Vas 22.80 liters, Mms 25.3 g, Cms 0.30 mm/N, BL 6.9 T m, Qts 0.48, Qes 0.62, Qms 2.2, and SPL 92.5 dB.

Features
  • 6 inch x 9 inch Speaker Set
  • 2-way system
  • Pressed paper diaphragm with FEM-optimized geometry (mid-bass driver)
  • Dual-layer voice coil (mid-bass driver)
  • Neodymium magnet with low-carbon pole plates (mid-bass driver)
  • Compact 3-spoke basket, rubberized magnet cover
  • 29 mm Soft Tetolon Tweeter diaphragm
  • 25 mm Tweeter voice coil with ferrofluid cooling
  • Center Tuning Duct geometry (Tweeter)
  • Rear chamber with damping material (Tweeter)
  • FEM-optimized faceplate geometry
  • Adjustable high-frequency level -2 dB, 0 dB, +2 dB
  • Crossover with 160 V capacitors and pure copper coils
  • Compact crossover design in metallic look with ventilation slots
Technical Specifications
  • Speaker size 152.4 x 228.6 mm
  • Power handling RMS 120 W
  • Power handling Peak 360 W
  • Impedance 4 Ohm
  • Sensitivity 92 dB SPL
  • SPL 92.5 dB
  • Frequency response 35 Hz – 22.5 kHz
  • Crossover type 2 way
  • High-frequency level -2/0/+2 dB
  • Crossover frequency Tweeter 3.1 kHz
  • Crossover slopes HP 12 dB/Oct, LP 6 dB/Oct
  • Tweeter diaphragm 29 mm
  • Tweeter voice coil Ø 25 mm
  • Mid-bass driver voice coil Ø 30.5 mm
  • D 172 mm
  • Re 3.2 Ohm
  • Fs 58 Hz
  • Le 0.33 mH
  • Vas 22.80 liters
  • Mms 25.3 g
  • Cms 0.30 mm/N
  • BL 6.9 T m
  • Qts 0.48
  • Qes 0.62
  • Qms 2.2
  • Weight woofer 1.69 kg
  • Weight Tweeter 0.07 kg
  • Weight Crossover 0.2 kg

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Hertz Cento Pro CPK 690 Datasheet

Frequently Asked Questions about Cento Pro CPK 690


What speaker size does the Hertz Cento Pro CPK 690 have?

The Hertz Cento Pro CPK 690 is a 6"x9" oval speaker. This size is ideal for use in many American vehicles like Ford and Toyota, as the elliptical shape provides optimal coupling to the vehicle space. The dimensions of the speaker are designed for precise music reproduction, maintaining sound quality even at high volumes. This speaker therefore combines not only a robust construction but also versatile installation options, making it suitable for many models. Its design optimizes space requirements without compromising sound performance.

What power handling and frequency response does the Hertz Cento Pro CPK 690 offer?

The Hertz Cento Pro CPK 690 has an RMS power handling of 120 watts and a peak power handling of 360 watts. This allows for powerful and dynamic sound, even at high volumes. The frequency response of the speaker ranges from 35 Hz to 22.5 kHz, ensuring detailed and balanced music reproduction across a wide frequency spectrum. In particular, the precise tuning of the voice coil and magnet contributes to a clean and detailed sound image, while the high-frequency range is clearly reproduced by the CP 25 Soft Tetolon® membrane, capturing fine nuances.

What materials are used in the membrane of the CPK 690?

The membrane of the Hertz Cento Pro CPK 690 is made from pressed paper that has been optimized through FEM (Finite Element Modeling). This choice of material combines stiffness and lightness, resulting in a sound-friendly and distortion-free sound. The pressed paper also allows for precise control over the membrane movement, which is reflected in accurate music reproduction. Additionally, the membrane is equipped with an extremely strong neodymium magnet that minimizes distortion and ensures control over the mid-bass range even at maximum load.

How does the crossover of the CPK 690 affect the sound?

The crossover of the Hertz Cento Pro CPK 690 supports a clean separation of frequencies between the tweeter and woofer. The tweeter has a crossover frequency of 3.1 kHz with a slope of 12 dB/octave, while the mid-woofer has a slope of 6 dB/octave. The adjustability of the high-frequency level in three positions (-2, 0, +2 dB) allows the user to set an optimal tonal balance. This adaptability ensures good stage representation in the vehicle and guarantees a clearly defined sound image that can be individually tuned.

What are the Thiele-Small parameters of the Hertz CPK 690?

The Thiele-Small parameters of the Hertz Cento Pro CPK 690 provide valuable insights into the electroacoustic performance of the speaker. The parameter Fs, which describes the resonance frequency, is at 58 Hz. With a Vas value of 22.80 liters, the volume required for optimal performance is determined. The Qts value of 0.48 indicates that the speaker is suitable for use in both sealed and vented enclosures. These parameters help to optimally integrate the speaker in various acoustic environments to achieve the best possible performance.

Can the Cento Pro CPK 690 be integrated into my vehicle model?

The Hertz Cento Pro CPK 690 is primarily designed for American car models such as Ford and Toyota. Due to its oval 6"x9" shape, it fits well into the designated cutouts. Additionally, Hertz offers a wide range of accessories, making installation in original mounting locations easier. To check compatibility for other car brands or specific models, it is advisable to consult the vehicle's manual to compare the installation depth and space conditions. This data helps to carry out the installation seamlessly and accurately.

How does the voice coil of the CPK 690 affect sound quality?

The voice coil of the Hertz Cento Pro CPK 690, with a diameter of 30 mm, is designed in two layers, allowing for maximum excursion and high load capacity. This design significantly contributes to increasing the efficiency and control of the diaphragm movements, thereby reducing distortion even at high volumes. In conjunction with the strong neodymium magnet, the voice coil ensures that the speaker delivers dynamic and clear music reproduction. This technical sophistication becomes particularly noticeable with bass-heavy tracks, producing solid and powerful low frequencies.

What advantages does the ferrofluid-cooled voice coil of the tweeter offer?

The tweeter of the Hertz Cento Pro CPK 690 is equipped with a ferrofluid-cooled 25 mm voice coil, which optimizes heat dissipation and increases load capacity. This technology ensures consistent performance, even at high volumes, by reducing thermal distortion. The ferrofluid cooling also enhances the longevity of the tweeter and contributes to a more uniform sound distribution. The CP 25 Soft Tetolon® membrane provides a natural sound profile that reproduces even the finest musical nuances without overheating the system.

How does the neodymium magnet support speaker performance?

The extremely strong neodymium magnet of the Hertz Cento Pro CPK 690 is crucial for the effective performance of the speaker. It offers excellent field strength and allows for precise control of the voice coil displacement. In combination with the low-carbon pole plates, distortion at high volumes is minimized, resulting in clear audio output. This magnetic structure not only supports the speaker's wide dynamic range but also ensures detailed reproduction of sound details across the entire frequency spectrum. Its lightweight design also contributes to the structural efficiency of the speaker.

What electromechanical properties influence the sound of the CPK 690?

The electromechanical properties of the Hertz Cento Pro CPK 690, such as a sensitivity of 92 dB SPL and an impedance of 4 ohms, significantly influence its sound quality. The BL parameter of 6.9 T*m illustrates the electromagnetic interaction between the magnetic field and the voice coil. A low Re value of 3.2 ohms indicates the voltage requirements for optimal performance. These parameters contribute to a balanced and powerful audio signal that is noticeable in both loud and quiet passages. In combination with acoustic optimization, the speaker offers clear reproduction and precision.

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