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Ultra XAS12
Technical Highlights
- Power of 500W RMS with dual 4 Ohm voice coil, frequency 32 Hz.
- Diameter 12 inches, installation depth 155mm, magnet size 175 * 25mm.
- Qts 0.40, Mms 147g, Vas 68 liters, impressive BL of 10.4 g.
- More technical details
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Ultra XAS12 by Xcelsus
Ultra XAS12 is a 12-inch Subwoofer from Xcelsus in the Altum series. Designed for sealed enclosures and dual voice coil with 2 x 4 Ohm. Power handling (RMS) 500 Watts. Power handling (MAX) 1000 Watts. Paper cone with fiber reinforcement and rubber surround. Magnet size 175 x 25 mm, outer diameter 325 mm, mounting depth 155 mm, and 3-inch voice coil. Resonance frequency (Fo) 32 Hz, Vas 68.0 liters, Qts 0.40, Qes 0.44, Qms 4.8, BL 10.4 g, Mms 147.0 g, and SPL 89.
- 12-inch Subwoofer
- Altum series
- Designed for sealed enclosures
- Dual voice coil: 2 x 4 Ohm
- Power handling (RMS): 500 Watts
- Power handling (MAX): 1000 Watts
- Paper cone with fiber reinforcement
- Rubber surround
- Outer diameter: 325 mm
- Mounting depth: 155 mm
- Diameter: 304.8 mm
- Magnet size: 175 x 25 mm
- Voice coil diameter: 76.2 mm
- Resonance frequency (Fo): 32 Hz
- Vas: 68.0 liters
- Qts: 0.40
- Qes: 0.44
- Qms: 4.8
- BL: 10.4 g
- Mms: 147.0 g
- SPL: 89

