1 / 5
The Hertz C 165 F delivers clear midrange detail, straightforward fitment and useful rear-fill in many installs. Several reviewers found the speakers much improved when used with an external amp/DSP, but some buyers reported weak or tinny low-end and returned them.
Buyer confidence
68%Highlights
- Shallow profile for an easy replacement of factory speakers.
- Semi-Pressed Paper Cone reinforced with Mica powder for superior stiffness and smooth response.
- High-density flux ferrite magnet combined with low-carbon polar plates for reduced distortion at high power levels.
- Pure copper voice coil, wound on aluminium former, for very good thermal and mechanical capacity.
Key specs
Full specs- Component
- Woofer
- Size mm (in.)
- 165 (6.5)
- Power Handling - Continuous W
- 70
- Power Handling - Peak W
- 180
- Impedance Ohm
- 4
- Voice Coil Ø
- 25 (1)
- Frequency Response Hz
- 65 ÷ 4,5k
- Magnet size D x d x h mm (in.)
- 90 x 32 x 10 (3.54 x 1.26 x 0.39)
Key specs
Full specs- Component
- Woofer
- Size mm (in.)
- 165 (6.5)
- Power Handling - Continuous W
- 70
- Power Handling - Peak W
- 180
Highlights
Overview- Shallow profile for an easy replacement of factory speakers.
- Semi-Pressed Paper Cone reinforced with Mica powder for superior stiffness and smooth response.
- High-density flux ferrite magnet combined with low-carbon polar plates for reduced distortion at high power levels.
Review highlights
Based on customer reviewsHertz C 165 F — clear midrange and easy fit, but bass can be thin for some
The Hertz C 165 F delivers clear midrange detail, straightforward fitment and useful rear-fill in many installs. Several reviewers found the speakers much improved when used with an external amp/DSP, but some buyers reported weak or tinny low-end and returned them.
What buyers praise
- Clear midrange presence
- Provides good rear-fill and overall clarity
What to watch for
- Some users report weak or tinny bass—may disappoint if you want strong low-end
Overview
The installation of after-market woofers in factory placements limited by a reduced depth is a recurring problem that forces specialists to make complicated mechanical changes, extending the time to finish the job significantly. The Cento line new C 165 F flat profile woofer is the solution, thanks to a super slim basket with reduced depth that allows the use even in the most problematic OEM scenarios, widespread in new generation cars. The R&D team, through an extensive design process was able to obtain high performance even with the super slim basket feature. This was made possible by the optimization of the mobile group excursion and the new design of the cone and dustcup geometry. Like the other components of the Cento range, the use of SPP-M (Semi-Pressed Paper-Mica) provides the C 165 F with a light and rigid cone at the same time that guarantees high efficiency and an extended frequency response.
Highlights
Key features
- Shallow profile for an easy replacement of factory speakers.
- Semi-Pressed Paper Cone reinforced with Mica powder for superior stiffness and smooth response.
- High-density flux ferrite magnet combined with low-carbon polar plates for reduced distortion at high power levels.
- Pure copper voice coil, wound on aluminium former, for very good thermal and mechanical capacity.
- SPP-M
Technologies
SPP-M
SPP-M (Semi Pressed Paper-Mica) cone enhanced with Mica powder for an excellent balance between lightness and
Specs
Technical Specs
12
| Component | Woofer |
| Size mm (in.) | 165 (6.5) |
| Power Handling - Continuous W | 70 |
| Power Handling - Peak W | 180 |
| Impedance Ohm | 4 |
| Voice Coil Ø | 25 (1) |
| Frequency Response Hz | 65 ÷ 4,5k |
| Magnet size D x d x h mm (in.) | 90 x 32 x 10 (3.54 x 1.26 x 0.39) |
| Weight of one speaker kg (lb.) | 0,72 (1,59) |
| Magnet | High density flux ferrite |
| Cone | Semi-Pressed paper with Mica |
| Xmech mm (in.) | 3,5 (0.14) |
Electro-acoustic Specs
12
| D mm | 134 |
| Re Ohm | 2,7 |
| Fs Hz | 80 |
| Le mH | 0,154 |
| Vas I | 9,40 |
| Mms g | 12 |
| Cms mm/N | 0,33 |
| BL T*m | 3,9 |
| Qts | 0,80 |
| Qes | 1,00 |
| Qms | 3,4 |
| Spl dB | 93 |
Physical Specs
4
| A | 165 mm | 6.5 in. |
| B | 141 mm | 5.55 in. |
| C | 50,6 mm | 1.99 in. |
| D | 43,5 mm | 1.71 in. |
Frequency response
Visual spec reference.
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