Data Sheet

109 dB SPL 1W / 1m average sensitivity
1.4 inch exit throat
3 inch edgewound aluminum voice coil
200W program power handling
Polyethilene - Titanium diaphragm assembly
Copper shorting ring on pole pieces
Available also in 2" exit version
The HD1480T 1.4 inch exit high frequency compression driver has been designed for use in high
quality installed audio systems, where weight is not the key issue. The motor structure, throughout
the precisely coherent phase plug with 3 circumferential slots and copper ring on the pole piece,
reduces inductance effects and distortion. Four top plate air ducts have been designed to act as a
loading chamber for the diaphragm, implementing mid band distortion and response figures. The
HD1480T diaphragm assembly is composed of a titanium dome sandwiched to a proprietary treated
polyester suspension unit. It has been designed to maintain low resonance, lowering the minimum
crossover point value at 1,2kHz. Thanks to its physical properties, the proprietary treated Nomex
former has a 30% higher value of tensile elongation at a working operative temperature (200°C)
when compared to Kapton. This feature enables proper energy transfer control from the voice coil to
the dome in real working conditions. Moreover, this proprietary former material is also suitable to for
use in higher moisture content environments. The HD1480T powerful ceramic magnet assembly has
been designed to obtain 16KGauss in the gap. Excellent heat dissipation and thermal exchange are
guaranteed by the direct contact between the magnetic structure and the diecast aluminum
heatsink which leads to a lower power compression value.
HD1480T
8Ω
HF Drivers - 1.4 Inches
Eighteen Sound Srl
Via Botticelli 8 - 42124 Mancas ale (RE) - ITALY - Ph. [phone] - Fax [phone] -
[e-mail]
1/2