ESB Audio - 3.165C 2-Way 6.5”/165 mm Convertible

The ESB 3.165C is a flexible speaker solution combining coaxial convenience with the upgrade path to component configuration. It offers high-quality sound from a 6.5″ woofer paired with a silk dome tweeter, and is engineered so the tweeter can be detached for use in a dedicated mid / high setup. Ideal for systems where flexibility and performance must go hand-in-hand.

Specifications / Features:
• Model: 3.165C
• Type: Convertible 2-Way system (coaxial or component)
• Woofer: 6.5″ (165 mm) driver
• Tweeter: 1″ silk dome (coaxial or detachable for component use)
• Nominal Impedance: 4 Ω
• Power Handling (RMS): 80 W
• Peak Power: 160 W
• Frequency Response: 65 Hz – 22,000 Hz
• Sensitivity: ~90–91 dB @ 2.83 V / 1 m

Driver / Construction Details:
• Woofer cone: Treated paper or composite cone for rigidity with natural tone
• Surround: Rubber surround for controlled excursion
• Voice coil: 25–32 mm aluminum former with copper winding
• Basket / frame: ABS reinforced or die-cast design optimized for rigidity and airflow
• Magnet: Ferrite motor for the woofer, neodymium or optimized small magnet for tweeter
• Tweeter dome: Silk dome with built-in suspension, removable for component mode
• Convertible features:
 – The tweeter can be removed from the coax mount when converting to component setup
 – The woofer remains usable in coax mode or component mode with separate mid / tweeter mounted externally

Mechanical / Mounting Specs (Approximate):
• Overall Diameter: ~165 mm (6.5″)
• Cutout Diameter: ~142 mm (5.6″)
• Mounting Depth: ~64 mm (2.52″)
• Weight: ~1.4–1.8 lb (0.64–0.82 kg)