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 36 mm diameter woofer generates deep and controlled bass frequencies. 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. -TECHNICAL SPECIFICATIONS- Component Coaxials Size 165mm (6.5in) Power Handling - Continuous 100W Power Handling - Peak 200W Impedance 4 Ohm Woofer Voice Coil Ø 36mm (1.42in) Tweeter Voice Coil Ø 20mm (0.8in) Frequency Response 45 ÷ 21,5k Hz Woofer Magnet size D x d x h 90 x 45 x 17mm (3.54 x 1.77 x 0.67in) Tweeter Magnet size D x h 29.5 x 22 x 4mm (1.16 x 0.87 x 0.16in) Weight of one speaker 1.27kg (2.8lbs) Woofer Magnet High density flux ferrite Tweeter Magnet Neodymium Cone Pressed-pulp cone with cotton fibers Dome Tetolon Xmech ±6mm (0.24in) 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
