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Reviewers report the CX 165 delivers noticeably better, detailed sound than stock speakers and pairs well with matching Hertz components. For best results expect to use an amplifier or DSP and pay attention to placement.
Buyer confidence
82%Highlights
- Soft Tetolon® fiber 24 mm (0.9 in.) dome tweeter and 13 mm (0.5 in.) mobile coil cooled with ferrofluid, for extended and natural high frequencies.
- RHFC ™ (Rotary High Frequency Contour) tweeter angled and directable to the listener for a perfect frequency response in any installation scenario.
- Tweeter faceplate geometry optimized with FEM simulations (Finite Element Modeling), to provide an extremely linear frequency response in off-axis installations.
- 25 mm (1 in.) woofer coil featuring an aluminum former to guarantee high excursion and power handling.
Key specs
Full specs- Component
- Coaxials
- Size mm (in.)
- 165 (6.5)
- Power Handling - Continuous W
- 70
- Power Handling - Peak W
- 210
- Impedance Ohm
- 4
- Woofer Voice Coil Ø mm (in.)
- 25 (1)
- Tweeter Voice Coil Ø mm (in.)
- 13 (0.5)
- Frequency Response Hz
- 55 ÷ 22k
Key specs
Full specs- Component
- Coaxials
- Size mm (in.)
- 165 (6.5)
- Power Handling - Continuous W
- 70
- Power Handling - Peak W
- 210
Highlights
Overview- Soft Tetolon® fiber 24 mm (0.9 in.) dome tweeter and 13 mm (0.5 in.) mobile coil cooled with ferrofluid, for extended and natural high frequencies.
- RHFC ™ (Rotary High Frequency Contour) tweeter angled and directable to the listener for a perfect frequency response in any installation scenario.
- Tweeter faceplate geometry optimized with FEM simulations (Finite Element Modeling), to provide an extremely linear frequency response in off-axis installations.
Review highlights
Based on customer reviewsHertz CX 165 — Clear, crisp 6.5" upgrade over factory speakers
Reviewers report the CX 165 delivers noticeably better, detailed sound than stock speakers and pairs well with matching Hertz components. For best results expect to use an amplifier or DSP and pay attention to placement.
What buyers praise
- Noticeable sonic improvement over factory speakers
- Clear, crisp midrange and overall sound
What to watch for
- May be underpowered by some factory amps — performs best with an amplifier or DSP
Overview
Coaxial loudspeakers represent a major design challenge due to the critical nature of their acoustic output, being installed in an OEM placement often unfavorable to reproduction. For this reason, in order to achieve high performance, a great engineering effort was put into place, promptly addressed by our R&D team. The Cento two-way coaxials CX 165 features the new 24 mm (0.9 in.) Tetolon® dome tweeter that delivers a more musical and detailed sound compared to the more traditional plastic materials. The dispersion has been optimized for off-axis listening. The SPP-M cone (Semi Pressed Paper-Mica) ensuring superior acoustic and damping characteristics.
Highlights
Key features
- Soft Tetolon® fiber 24 mm (0.9 in.) dome tweeter and 13 mm (0.5 in.) mobile coil cooled with ferrofluid, for extended and natural high frequencies.
- RHFC ™ (Rotary High Frequency Contour) tweeter angled and directable to the listener for a perfect frequency response in any installation scenario.
- Tweeter faceplate geometry optimized with FEM simulations (Finite Element Modeling), to provide an extremely linear frequency response in off-axis installations.
- 25 mm (1 in.) woofer coil featuring an aluminum former to guarantee high excursion and power handling.
- 165 mm (6.5 in.) semi-pressed paper cone SPP-M (Semi Pressed Paper-Mica) enhanced with Mica powder for an excellent balance between lightness and damping.
- High-density flux ferrite magnet combined with low-carbon polar plates for reduced distortion at high power levels.
- Compact and transparent three-spoke basket acoustically combined with a rubber magnet cover for total damping of spurious vibrations.
- Elegant grille made with high-resistance ABS plastic structure with a metallic finish combined with a protective metal mesh, available as optional.
- SPP-M
- RHFC™
Technologies
SPP-M
SPP-M (Semi Pressed Paper-Mica) cone enhanced with Mica powder for an excellent balance between lightness and
RHFC™
RHFC™ (Rotary High Frequency Contour) tweeter angled and directable to the listener for a perfect frequency
Specs
Technical Specs
16
| Component | Coaxials |
| Size mm (in.) | 165 (6.5) |
| Power Handling - Continuous W | 70 |
| Power Handling - Peak W | 210 |
| Impedance Ohm | 4 |
| Woofer Voice Coil Ø mm (in.) | 25 (1) |
| Tweeter Voice Coil Ø mm (in.) | 13 (0.5) |
| Frequency Response Hz | 55 ÷ 22k |
| Woofer Magnet size D x d x h mm (in.) | 85 x 32 x 15 (3.35 x 1.26 x 0.59) |
| Tweeter Magnet size D x h mm (in.) | 13 x 2 (0.51 x 0.08) |
| Weight of one speaker kg (lb.) | 0,95 (2.09) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Semi-pressed paper+ Mica |
| Dome | Tetolon |
| Xmech mm (in.) | 4,9 (0.19) |
Electro-acoustic Specs
12
| D mm | 131,5 |
| Re Ohm | 3,2 |
| Fs Hz | 65 |
| Le mH | 0,21 |
| Vas I | 12,2 |
| Mms g | 13,3 |
| Cms mm/N | 0,46 |
| BL T*m | 4,8 |
| Qts | 0,60 |
| Qes | 0,73 |
| Qms | 3,4 |
| Spl dB | 93 |
Physical Specs
6
| A | 165 mm | 6.5 in. |
| B | 142 mm | 5.59 in. |
| C | 71 mm | 2.8 in. |
| D | 62,5 mm | 2.46 in. |
| E | 171 mm | 6.73 in. |
| F | 24 mm | 0.94 in. |
Frequency response
Visual spec reference.
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