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Continuous power handling
Voice coil diameter
Diaphragm material
Throat diameter
The Helical Approach
B&C has a reputation for performance, by turning the limits of traditional compression driver design on their head. HLX™ : Compression driver efficiency in miniature. The HLX™ phase plug (US and EP Patents Pending) has a central channel that is twisted, like DNA, to gain the length required to match the outer channels. This technique works with standard, cost-effective injection mold tooling and plastics by rotating the inner die along a screw profile. The convex dome design, so achieved, has a number of significant cost and performance advantages.
➔ Minimized diameter, weight, and cost
➔ lncreased diaphragm area
➔ Low, ~1kHz Crossover point
➔ Reduced distortion, especially intermodulation distortion
➔ More efficient magnetic flux use
➔ More efficient magnetic flux use
Features
- Very Compact 69 mm diameter
- 80 W* continuous program power capacity
- 1" horn throat diameter
- 44 mm (1.7 in) aluminium voice coil
- HT Polymer diaphragm
- 1000 - 18000 Hz response
- 109 dB sensitivity
- * Small heat sink required for full power application
Specifications1
- Throat Diameter25 mm (1.0 in)
- Nominal Impedance8 Ω
- Minimum Impedance7.8 Ω
- Nominal Power Handling240 W
- Continuous power handling380 W
- Sensitivity (1W/1m)4109.0 dB
- Frequency Range1.0 - 18.0 kHz
- Recommended Crossover51.0 kHz
- Voice Coil Diameter44 mm (1.73 in)
- Winding MaterialAluminium
- Inductance0.16 mH
- Diaphragm MaterialHT Polymer
- Flux Density1.9 T
- Magnet MaterialNeodymium Inside Slug
Mounting and Shipping Info
- Two M5 holes 180° on 57 mm (2.24 in) diameter.
- Diameter is 90mm at widest point (driver rotated, across mounting studs).
- Overall Diameter69 mm (2.72 in)
- Depth48 mm (1.89 in)
- Net Weight0.53 kg (1.16 lb)
- Shipping Units1
- Shipping Weight0.56 kg (1.23 lb)
- Shipping Box105x105x65 mm (4.13x4.13x2.56 in)
- Other DetailsOne M5 threaded hole on the back of the magnet structure is available for the installation of an optional heat sink.
- Driver mounted on B&C ME 45 horn.
- 2 hour test made with continuous pink noise signal within the range from the recommended crossover frequency to 20 kHz. Power calculated on rated minimum impedance.
- Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
- Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
- 12 dB/oct. or higher slope high-pass filter.