HD1050    HF Compression Driver


Key features

107 dB SPL 1W / 1m average sensitivity
1 inch exit throat
44 mm (1 3/4 inch) voice coil diameter
100 Watt program power handling
Titanium dome over PEN suspension
Proprietary phase plug design

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Description The HD1050 one inch exit high frequency compression driver has been designed for use in high quality audio systems. Equipped with Eighteen Sound proprietary Phase Plug architecture, the HD1050 has been designed to give high level manufacturing consistency and smooth coherent wave front at the horn entrance across the whole working frequency range. The phase plug with its short openings and high flare rate value assures low distortion and demonstrates remarkable improvements in mid-high frequency reproduction. The 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 1,6kHz. An edge-wound aluminum voice coil, wound on proprietary treated Nomex, completes the diaphragm assembly. 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 HD1050 powerful ceramic magnet assembly has been designed to obtain 16 KGauss in the gap and within a compact ferrite motor structure.



GENERAL SPECIFICATIONS

Throat Diameter
25,4 mm (1 in)

Rated Impedance
8 ohm

DC Resistance
5,3 Ohm

Minimum Impedance
7 Ohm at 4000Hz

AES power (1)
50 W above 1,6 kHz

Program power (2)
100 W above 1,6 kHz

Sensitivity(1W@1m) (3)
107 dB

Frequency Range
1600Hz ÷ 20kHz

Recomm. Xover Frequency
1600Hz (12dB/oct slope)

Diaphragm Material
Titanium - PEN

Voice Coil Diameter
44,4 mm (1 3/4 in)

Voice Coil Winding Material
Edge-wound aluminum

Magnet Material
Ferrite

Flux Density
1,6 T

BL Factor
7,4 N/A

Polarity
Positive voltage on + terminal gives positive pressure in the throat


MOUNTING INFORMATIONS

Overall diameter
110 mm (4,3 in)

Mounting holes diameter
4 M6 holes 90° at Ø 76 mm (3 in)

Bolt circle diameter
76 mm (3 in)

Total depth
60,5 mm (2,38 in)

Net weight
1,8 Kg (4 lb)

Shipping weight
1,9 Kg (4,22 lb)


CardBoard Packaging dimensions
110x110x63 mm (4,3x4,3x2,5 in)


HD1050 MEASURED WITH 1W INPUT ON RATED IMPEDANCE AT 1M DISTANCE ON XT1086 HORN MOUTH AXIS FREE AIR IMPEDANCE MAGNITUDE CURVE