ESB Audio - 3.6K3U -  3000 Series - 3 way Speaker system / with UMA  (Passive) 3.6K3 HECX 3-Way High-End Passive Crossover

 
3.165
6.5"/165 mm Mid-Woofer
- ABS basket reinforced with fiberglass. The basket has been engineered to obtain the maximum in terms of torsional rigidity (resistance to bending), but at the same time, offers the minimum resistance to air passage.
- Pressed paper cone with waterproof treatment. It is widely recognized that cones made of paper are the ideal marriage between lightness, stiffness and the ability of the cone to dampen any unwanted vibration (read: distortion).
- High damping, single wave rubber surround. The Perbunan® rubber edge is much more stable with temperature changes than standard rubber.
- The 25 mm voice coil uses an aluminum support with a double layer winding technology of copper wire with an aluminum core.
- High grade ferrite magnet, a type of magnet with significantly higher performance than "standard" magnets.
 
Technical Specifications
- Nominal Impedance: 4 Ohm
- Nominal Power Handling: 120 Watt
- Transient Power: 240 Watt
- Frequency Response: 65 Hz ~ 9 KHz
- Sensitivity: 91.5 dB 2.83v/1m
 
3.UMA
2-Way Mid-High Unit
 
- This special and exclusive component driver is a concept conceived way back in 1970’s. Its aim is to concentrate medium and tweeter emissions in a single virtual point. This minimizes phase delays and irregularities at the crossover point.
- The neodymium magnet is high grade type to eliminate magnetic losses at elevated temperatures and to concentrate more force in less space.
- The tweeter has a silk-impregnated, thin fabric dome diaphragm for a smooth sound, with an outer suspension covered with a high-loss damping material to eliminate edge vibration and resonance.
- Pressed paper cone with waterproof treatment (midrange) for the ideal marriage between lightness, stiffness and the ability of the cone to dampen any unwanted vibration.
- The voice coil uses an aluminum support and a double layer winding technology of copper wire with an aluminum core.
 
Technical Specifications
- Nominal Impedance: 4 Ohm
- Nominal Power: 60 (mid), 80 (tw) W
- Transient Power: 120 (mid), 160 (tw) W
- Frequency Response: 130 Hz ~ 25 KHz
- Sensitivity: 86 (mid), 91 (tw) dB 2.83v/1m
 
3.6K3 HECX
3-Way High-End Passive Crossover
Passive crossovers are used in 2-way and 3-way speaker systems to electrically channel low tones to the bass loudspeaker and high notes and overtones to the high frequency speakers. If a passive crossover has to fulfill its function without compromise, it must be able to handle extreme variations in dynamics, the full range of audio frequencies, complex transients, and the varying impedance of a loudspeaker load. ESB passive crossovers are carefully designed to complement the exact characteristics of ESB speakers. Each crossover network circuit controls the signal to the high and low frequency speakers to maintain smooth acoustic response throughout the full audio spectrum. The 3.6K3 HECX uses high-grade, separate Alu E-Cap, a high quality aluminum foil capacitor designed specifically for passive crossovers (tweeter and midrange drivers). It utilizes a much thinner dielectric insulation compared to the market standard. The use of a thinner dielectric insulator allows for a cap with less “memory” and that is much faster reacting. Compared to the electrolytic capacitors, the Alu E-Cap brings more brightness and a little more natural top end balance to the audio system. Ideal for those who prefer a slightly brighter sounding system, while also hearing improvements in the overall naturalness/neutrality of the audio system.

- Ultra-thin dielectric insulation to eliminate memory effect in the capacitor.
- Extremely fast reacting capacitor.
- Very low ESR, SEL, inductance and dielectric absorption data.
- High quality aluminum foil wound with highly specialized machinery and precision winding techniques.
- Dedicated for 3.28 tweeter, 3.90 midrange and 3.165 woofer.
- High thickness PCB copper.
- Inside 4 step tweeter level adjustment.
- Oversized, non-inductive ceramic resistors.
- Polyester tweeter capacitor.
 
Technical Specifications
- Cut out Frequency: 350 / 3 KHz
- Crossover Slope: 12 dB/Oct LP, 6-6 dB/Oct BP, 12 dB/Oct HP
- 4-step tw/mid level adjustment
- Low Frequency section: 3.165
- Mid Frequency section: 3.90
- High Frequency section: 3.28