The ESB Audio 9.3M is a precision-engineered 3-inch midrange driver designed for exceptional tonal accuracy and low distortion. Featuring a carbon fiber cone, neodymium motor, and advanced airflow control, it provides crystal-clear mids and seamless integration with woofers and tweeters in a 3-way audiophile system. Its compact size, high sensitivity, and wide frequency range make it ideal for high-end automotive sound quality installations demanding lifelike vocals and detailed imaging.
• Model: 9.3M
• Type: 3-inch (75 mm) High-End Cone Midrange
• Series: ESB 9000 Series
• Nominal Impedance: 4 Ω
• Power Handling (RMS): 110 W
• Peak Power: 220 W
• Frequency Response: 130 Hz – 20,000 Hz
• Sensitivity: 91.5 dB @ 2.83 V / 1 m
Construction / Design Highlights:
• Magnet System: Compact neodymium motor for high magnetic flux and low distortion
• Pole Piece: CNC-machined from ultra-low carbon steel for uniform magnetic field and linearity
• Cooling System: TCA (Tuned Cavity Airflow) design to manage airflow and minimize resonance
• Basket / Frame: Cast aluminum, powder-coated, FEA-optimized for low resonance and rigidity
• Voice Coil: Lightweight Nomex former with aluminum winding for superior bandwidth and transient response
• Spider: Balanced Conex™ spider for symmetrical excursion and low distortion
• Cone Material: High-modulus carbon fiber cone, vacuum and autoclave molded for stiffness and lightness
• Surround: NBL (Natural Butyl Latex) rubber surround shaped for linear motion and controlled damping
• Terminals: Gold-plated, heavy-duty terminals for low-resistance connections
• Grille: Optional CNC-machined aluminum protective grille
Mechanical Specifications:
• Nominal Diameter: 3″ (75 mm)
• Mounting Depth: 1.89″ (48 mm)
• Cutout Diameter: 2.87″ (73 mm)
• Overall Diameter: 3.7″ (94 mm)
• Weight: Approx. 1.5 lb (0.68 kg)
