| Woofer Size | 165 mm (6.5 in) |
| Impedance | 4 Ohm |
| Power Handling - Peak | 180 W |
| Power Handling - Continuous | 90 W |
| Sensitivity | 93 dB |
| Frequency Response | 40 ÷ 5k |
| Voice Coil Diameter | 36 mm (1.42 in) |
| Magnet Material | HIGH DENSITY FLUX FERRITE |
| Magnet Size | 85 x 32 x 17 mm (1.42 in) |
| Cone Material | PRESSED PULP CONE WITH COTTON FIBERS |
| Xmax | 4 mm (0.16 in) |
| Xmech | 7 mm (0.28 in) |
| Re | 3.1 Ohm |
| Fs | 70 Hz |
| Mms | 14.9 g (0.53 oz) |
| Cms | 0.36 |
| Bl | 5.5 |
| Qms | 4.6 |
| Qes | 0,67 |
| Qts | 0.58 |
| Vas | 9.5 l (0.34 ft) |
| LE | 0.3 mH |
| D | 132 mm (20.46 in) |
| Spl | 92 dB |
| Weight | 1.07 kg |
| Dimension A | 165 mm (6.5 in) |
| Dimension B | 141 mm (5.55 in) |
| Dimension C | 74 mm (2.91 in) |
| Dimension D | 62.6 mm (2.46 in) |
| Dimension E | 183.5 mm |
| Dimension F | 29 mm |
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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.
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.
