ESB 9.6W — 6.5”/165 mm Mid-Woofer
$1799.99
Description
6.5”/165 mm Mid-Woofer
Main Features
- The pole cup, designed with magnetic-flux analysis software, keeps the voice coil immersed in constant magnetic flux throughout its stroke.
- A very powerful, high-temperature-resistant neodymium magnet greatly reduces the size and bulk of the magnetic motor.
- The cast-aluminium, powder-coated basket offers very low resistance to airflow; its FEM-verified shape reduces vibration and resonance.
- The 75 mm super-light voice coil ensures highest-in-class power handling, with an aluminium former, ventilation holes and black anodisation to dissipate heat.
- The cone is high-modulus carbon, molded under vacuum and autoclave, for naturalness of reproduction and high transient dynamics.
- A CNC aluminium ring secures the rubber suspension at the edge for perfect fastening and centering.
Key Specifications
| Power Handling | 180 W RMS · 360 W peak |
| Nominal Impedance | 4 Ω |
| Sensitivity | 91.5 dB (2.83 V / 1 m) |
| Frequency Response | 48 Hz – 5 kHz |
| Voice Coil | 75 mm aluminium |
| Mounting Diameter | 165 mm (6.5″) |
| Mounting Depth | 77 mm |
Construction
| Cone | High-modulus carbon fibre + dust cap |
| Surround | NBL rubber |
| Basket | Cast aluminium, powder-coated (FEM) |
| Magnet | Oversized neodymium N52-H |
| Spider | Flat Conex |
Thiele–Small Parameters
| Resonance (Fs) | 61.9 Hz |
| DC Resistance (Re) | 3.6 Ω |
| Inductance (Le) | 110 µH |
| Qms / Qes / Qts | 2.202 / 0.569 / 0.452 |
| Vas | 10.5 L |
| Xmax | 5.25 mm |
| Sd | 13.62 cm² |
| Mms | 16.5 g |
| BL | 6.375 N/A |