Hsu Research HB-1 Horn Speaker and VTF-3 MK3 Subwoofer Specifications
Hsu HB-1: 2-way bookshelf speaker with ported enclosure
Drivers: 6.5" treated paper cone woofer, high temperature aluminum voice coil; horn tweeter with neodymium magnet and ferro-fluid cooled voice coil
Crossover: not specified
Frequency range: 60Hz – 20 kHz
Sensitivity: 92 db / 1m / 2.83 volt RMS half space (against wall)
Impedance: 6-ohm nominal, 4-ohm minimum
Warranty: Seven years
Dimensions: 15" x 8" x 8" (HxWxD)
Weight: 12 lbs.
VTF-3 MK3 subwoofer, dual-vented enclosure
Power: 350W (RMS)
Inputs: line level, speaker level
Warranty: Seven years (amplifier two years)
Dimension: 21" x 17" x 25" (HxWxD)
Weight: 90 lbs.
Hsu Research Inc.