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Cento Pro CPK 690
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
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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.
- 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
- 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

