18 Sound HD2020 70 Watt 2" EXIT 8ohm HF Ferrite Compression Driver

Best performance to price 2" exit driver on the market
108 dB 1W / 1m average sensitivity
2 inch throat exit 2.4 inch edge-wound CCAW aluminum voice coil
140 W program power handling
Pure Titanium diaphragm assembly
Proprietary phase plug design
HF copper sleeve for reduced distortion and increased output

The HD2020 1.4 inch exit high frequency compression driver has been designed for use in high quality audio systems.

The titanium diaphragm is produced in-house and has been developed to assure unmatched transient response.

A proprietary treated Nomex former with edge-wound copper-clad aluminum wire (CCAW) 60mm voice coil completes diaphragm assembly. It has been made by joining the proprietary-treated Nomex former directly to the titanium dome through its upper bend edge. In comparison with a usual straight former joint, the driver design assures extended frequency energy transfer for improved response linearity and unparalleled reliability. This feature maintains proper motion control of the dome in real working conditions. Due to its physical properties, the proprietary-treated Nomex former shows a 30% higher value of tensile elongation at working operative temperatures (200°C) when compared to Kapton. Moreover, this material is suitable to work also in higher moisture-content environments.

Equipped with Proprietary Phase Plug 3P architecture, the HD2000 has been designed to give a smooth coherent wave front at the horn entrance in all working frequency ranges with a high level manufacturing consistency.

The phase plug with its short openings and high flare rate, assures low distortion with excellent mid-high frequency reproduction. The HD2000 powerful ceramic magnet assembly has been designed to obtain 16 kGauss in the gap within a compact ferrite motor structure.

The motor structure is equipped with copper ring on the pole piece, reducing inductance effect and distortion.

Designed & manufactured in Italy and provided exclusively on-line by Lean Business, this Eighteen Sound compression driver comes complete wth 2 years warranty.

See specification tab for technical details or Click HERE for full details, response curves and detailed parameters. (opens in new window)

Model: 18 Sound HD2020
note: Price includes VAT

GENERAL SPECIFICATIONS

Throat Diameter 35,5 mm (1,4 in)
Rated Impedance 8 Ohm
D.C. Resistance 5,9 Ohm
Minimum Impedance 8,2 Ohm at 4000 Hz
Continuous Power 70W
Program power (8) 140W
Sensitivity (9) 108 dB
Frequency Range 1000 Hz - 20 kHz
Min. Xover Frequency 1200 Hz
Diaphragm material Titanium
Voice Coil Diameter 61mm (2,4 in)
Voice Coil winding material Edge-wound aluminum Ribbon
Magnet material Ferrite
Flux Density 1,6 T

Mounting information

Overall diameter 145 mm (6 in)
N. of mounting holes and bolt 4xM6 holes at 90° Ø 102 mm (4 in)
Bolt circle diameter 102 mm (4,02 in)
Total depth 100 mm (3.94 in)
Net weight 3.2 kg (7.05 lb)
Shipping weight 3 Kg (6.6 lb)
Packaging Dimensions TBC