The ESB Audio 8.6K2 is a high-fidelity 2-way component speaker system designed for discerning audiophiles who demand natural tonal balance and precision. Combining a rigid pulp-cone mid-woofer with a Torcon® soft-dome tweeter, the 8.6K2 delivers exceptional clarity, warmth, and dynamic response. Engineered for seamless crossover integration and low distortion, it embodies ESB’s signature Italian craftsmanship and acoustic excellence.
Specifications / Features:
• Model: 8.6K2
• Type: 2-Way Component Speaker System
• Series: ESB 8000 “Ottomila” Series
• System Components:
• 8.165 – 6.5″ Mid-Woofer
• 8.028 – 28 mm Soft Dome Tweeter
• 8.6K2 CX – Passive 2-Way Crossover Network
Woofer (8.165):
• Cone: Non-pressed cellulose pulp with vinylester resin coating for rigidity and damping
• Surround: TWS (Twin Symmetrical Wave) rubber surround
• Spider: Conex™ progressive spider for linear excursion
• Voice Coil: 32.4 mm aluminum former, dual-layer winding
• Magnet System: Y35 ferrite magnet optimized via FEA for low distortion
• Basket: Machined aluminum frame for strength and open airflow
• Frequency Response: 45 Hz – 4,000 Hz
• Power Handling: 160 W RMS / 320 W Peak
• Sensitivity: 92 dB @ 1 W / 1 m
• Impedance: 3–4 Ω
Tweeter (8.028):
• Dome Size: 28 mm (1.1″)
• Dome Material: Torcon® soft dome, heat-resistant fiber polymer
• Magnet: High-grade neodymium
• Voice Coil: 28 mm aluminum former
• Frequency Response: 940 Hz – 25,000 Hz
• Sensitivity: 91 dB @ 1 W / 1 m
• Impedance: 4 Ω
Crossover (8.6K2 CX):
• Type: 2-Way Passive Crossover
• Crossover Frequency: 3.5 kHz (Nominal)
• Crossover Slope: 12 dB/octave
• Tweeter Level Adjustment: 0 / –3 / –6 dB
• Components: Air-core inductors, polypropylene capacitors, non-inductive resistors
• Terminals: Gold-plated screw terminals
Technical Summary:
• System Impedance: 4 Ω
• System Power Handling: 160 W RMS / 320 W Peak
• Frequency Range: 45 Hz – 25,000 Hz
• Sensitivity: 89–91 dB (system average)
• Recommended Crossover Point: 3.5 kHz
• Mounting Depth (Woofer): 2.95″ (75 mm)
• Cutout Diameter (Woofer): 5.6″ (142 mm)
• Overall Diameter (Woofer): 6.5″ (165 mm)
