Deep, warm, well controlled bass.
Heavily ribbed, fibre loaded, UK manufactured straight sided cone for increased strength, durability and performance.
The Colossus 15XB is intended for use as a high-output sub-bass driver either singly or in multi way systems. The unit features a 4 inch ‘sandwich’ inside and outside windings voice coil immersed in a symmetric magnetic field and centralized by using two suspensions in a dual arrangement to maintain ultra linearity and stability at high excursions. The heavily ribbed straight-sided paper cone membrane is reinforced with high-strength composite fibres to resist deformation under extreme loads. The driver handles 800 Watts (A.E.S.) continuous and can cope with peaks in excess of 3200 Watts. This is due to advanced thermal management in the form of a vented die-cast chassis and motor system using an internal heatsink coupled to a large vaned heatsink mounted on the rear of the unit. These measures effectively remove heat from the voice coil resulting in extremely low-power compression. The Colossus 15XB is designed for use in 70 to 150 litre ported enclosures.
Nominal Chassis Diameter: 15” / 381 mm
Impedance: 8 Ω
Power Handling: 800 w (A.E.S.)
Peak Power (6dB Crest Factor): 3200 w (A.E.S.)
Usable Frequency Range -6dB: 40 Hz - 1 kHz
Sensitivity (1 w - 1 m): 99 dB
Moving Mass inc. Air Load: 108 grams
Minimum Impedance Zmin: 7.5 Ω
Effective Piston Diameter: 13.03” / 330.96 mm
Peak Displacement Volume of Cone Vd: 0.641 litres
Magnet Weight: 120 oz
Magnetic Gap Depth: 0.39” / 9.90 mm
Flux Density: 1.1 Tesla
Coil Winding Height: 0.90” / 22.86 mm
Voice Coil Diameter: 4.0” / 101.6 mm
A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 40 Hz and 400 Hz. Driver mounted in free air, test signal applied at rated power for two hours.
Please note that the frequency response measurements are supplied for comparison only and are not a measure of the low frequency performance which may be achieved in a fully optimised system.