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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
- Ultra Compact 48mm diameter
- 40 W continuous program power capacity
- 1" horn throat diameter
- 36 mm (1.4 in) aluminium voice coil
- HT Polymer diaphragm
- 1000 - 17000 Hz response
- 109.5 dB sensitivity
Specifications1
- Throat Diameter25 mm (1.0 in)
- Nominal Impedance16 Ω
- Minimum Impedance10.4 Ω
- Nominal Power Handling220 W
- Continuous power handling340 W
- Sensitivity (1W/1m)4109.5 dB
- Frequency Range1.0 - 17.0 kHz
- Recommended Crossover51.0 kHz
- Voice Coil Diameter36 mm (1.4 in)
- Winding MaterialAluminium
- Inductance0.15 mH
- Diaphragm MaterialHT Polymer
- Flux Density1.8 T
- Magnet MaterialNeodymium Inside Slug
Mounting and Shipping Info
- Two M5 holes 180° on 53 mm (2.09 in) diameter.
- Diameter is 64mm at widest point (driver rotated, across mounting studs).
- Overall Diameter48 mm (1.89 in)
- Depth46 mm (1.81 in)
- Net Weight0.25 kg (0.56 lb)
- 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 4 V for 16 ohms Nominal Impedance.
- 12 dB/oct. or higher slope high-pass filter.