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Cento C 165
Technical Highlights
- Power RMS 70W, impedance 4 Ohm, frequency response 55-7k Hz.
- Voice coil Ø 25mm, magnet size 85x32x15mm, mica-reinforced membrane.
- Qts 0.59, neodymium magnet, power handling up to 210W peak, SPL 93 dB.
- More technical details
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Cento C 165 by Hertz
The Cento C 165 is a 6.5-inch (16.5 cm) mid-bass speaker from Hertz. The diaphragm uses SPP-M (Semi Pressed Paper-Mica) and combines semi-pressed paper with mica. The frequency response ranges from 55–7000 Hz, the voice coil has a diameter of 25 mm, and the mechanical stroke (Xmech) is 4.9 mm. The magnet is made of high-density flux ferrite with dimensions of 85 x 32 x 15 mm. The weight per speaker is 0.96 kg. The parameters include Re 3.2 Ohm, Fs 60 Hz, Le 0.2 mH, Vas 13.24 l, Mms 13.9 g, Cms 0.51 mm/N, BL 4.9 T*m, Qts 0.59, Qes 0.69, Qms 3.9, and SPL 93 dB. Physical dimensions: A 165 mm, B 142 mm, C 71 mm, D 62.5 mm, E 171 mm, F 24 mm.
- 6.5-inch (16.5 cm) mid-bass speaker
- Diaphragm: SPP-M (Semi Pressed Paper-Mica)
- Diaphragm material: semi-pressed paper + mica
- Magnet: high-density flux ferrite
- Magnet size: 85 x 32 x 15 mm
- Voice coil: Ø 25 mm
- Weight per speaker: 0.96 kg
- Component: Woofer
- Impedance: 4 Ohm
- RMS power: 70 W
- Peak power: 210 W
- Frequency response: 55–7000 Hz
- Xmech: 4.9 mm
- Re: 3.2 Ohm
- Fs: 60 Hz
- Le: 0.2 mH
- Vas: 13.24 l
- Mms: 13.9 g
- Cms: 0.51 mm/N
- BL: 4.9 T*m
- Qts: 0.59
- Qes: 0.69
- Qms: 3.9
- SPL: 93 dB
- D: 131.5 mm
- Dimensions: A 165 mm, B 142 mm, C 71 mm, D 62.5 mm, E 171 mm, F 24 mm

