Hertz MPX1653 – 6.5″ Speakers
$499
Hertz MPX1653 – 6.5″ 2 WAY COAXIAL SPEAKER SET
The coax tweeter concentric to the woofer of the MPX 165.3 car audio coaxial speakers allows for one single linear-phase emission point, for a natural timbre providing a detailed sound stage. Thanks to the “Center Tuning Duct” geometry, the tweeter resonance frequency is especially low and the employment of damping materials for the inside provides for a linear acoustic emission. The acoustic lens optimizes its off-axis response, which is typical with door installation of coax speakers; besides, the 36mm diameter woofer generates deep and controlled bass frequencies.
TECHNOLOGY
Boundary Free Surround. This technology provides the ability to achieve wider emission surface of the cone compared to speakers with same diameter; that way, the cone manages to move a bigger mass of air, so it produces more acoustic pressure.
This special surround is built from highly pure IIR butyl rubber, ensuring extraordinary thermal and mechanical linearity.
This special surround is built from highly pure IIR butyl rubber, ensuring extraordinary thermal and mechanical linearity.
FEATURES
1. CONCENTRIC COAXIAL TWEETER: built in the woofer voice coil, achieving one single point of emission, to re-create the virtual sound-stage like in live music performances.
2. TWEETER SUPPORT WORKING AS A REAR CHAMBER: sized for low Fs, to ensure a well damped high pass frequency roll-off, allowing low cut-off frequency crossover point.
3. 36 MM PURE COPPER WOOFER VOICE COIL: wound on a Polyamide former, for outstanding power handling and dynamic compression-free reproduction.
4. PRESSED-PULP CONE WITH COTTON FIBERS: combining stiffness and lightweight for a wide frequency response. Cone profile geometrically refined to perfectly match with the tweeter emission ensuring phase consistency in the crossover area.
5. “BOUNDARY FREE” RUBBER SURROUND: for improved efficiency and wider midbass frequency. (Logo Boundary Free)
6. OVER-SIZED FERRITE MAGNET: combined with very low carbon content iron plates, for low distortion at high power levels.
7. BASKET: low mounting depth, acoustically transparent aluminium alloy basket with elegant diamond cutting and featuring the aluminium Hertz logo.
8. ANTI-VIBRATION RUBBER MAGNET COVER: to damp spurious vibrations.
2. TWEETER SUPPORT WORKING AS A REAR CHAMBER: sized for low Fs, to ensure a well damped high pass frequency roll-off, allowing low cut-off frequency crossover point.
3. 36 MM PURE COPPER WOOFER VOICE COIL: wound on a Polyamide former, for outstanding power handling and dynamic compression-free reproduction.
4. PRESSED-PULP CONE WITH COTTON FIBERS: combining stiffness and lightweight for a wide frequency response. Cone profile geometrically refined to perfectly match with the tweeter emission ensuring phase consistency in the crossover area.
5. “BOUNDARY FREE” RUBBER SURROUND: for improved efficiency and wider midbass frequency. (Logo Boundary Free)
6. OVER-SIZED FERRITE MAGNET: combined with very low carbon content iron plates, for low distortion at high power levels.
7. BASKET: low mounting depth, acoustically transparent aluminium alloy basket with elegant diamond cutting and featuring the aluminium Hertz logo.
8. ANTI-VIBRATION RUBBER MAGNET COVER: to damp spurious vibrations.
TECHNICAL SPECS
| Component | Coaxials |
| Size mm (in.) | 165 (6.5) |
| Power Handling – Continuous W | 100 |
| Power Handling – Peak W | 200 |
| Impedance Ohm | 4 |
| Woofer Voice Coil Ø mm (in.) | 36 (1.42) |
| Tweeter Voice Coil Ø mm (in.) | 20 (0.8) |
| Frequency Response Hz | 45 ÷ 21,5k |
| Woofer Magnet size D x d x h mm (in.) | 90 x 45 x 17 (3.54 x 1.77 x 0.67) |
| Tweeter Magnet size D x h mm (in.) | 29.5 x 22 x 4 (1.16 x 0.87 x 0.16) |
| Weight of one speaker kg (lb.) | 1.27 (2.8) |
| Woofer Magnet | High density flux ferrite |
| Tweeter Magnet | Neodymium |
| Cone | Pressed-pulp cone with cotton fibers |
| Dome | Tetolon |
| Xmech mm (in.) | ±6 (0.24) |
ELECTRO ACOUSTIC SPECS
| D mm | 132 |
| Re Ohm | 3,1 |
| Fs Hz | 90 |
| Le mH | 0,01 |
| Vas I | 4 |
| Mms g | 18,9 |
| Cms mm/N | 0,15 |
| BL T*m | 5,8 |
| Qts | 0,88 |
| Qes | 1,06 |
| Qms | 5,5 |
| Spl dB | 92 |
