The Ultra-X13  is our most advanced subwoofer. Designed to meet the demanding specifications of THX, the X13 will deliver "reference level" 115 dBSPL with remarkably low distortion.

Among the Ultra-X13's many features are:

• THX Ultra Certification for very low level distortion
• A down firing design that virtually eliminates audible port noise
• A long throw 13" driver (80mm excursion) for deep bass extension
• A powerful 1000 watt amplifier for precise driver control
• Variable port tuning for customized output
• Signal Sense for automatic turn on/off
• 180-degree phase control
• RCA and XLR inputs
• XLR Pass Thru inputs
• Detachable power cord

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