The Ultra-X12 brings a whole new meaning to 'tight' bass with a class LH amplifier and the same custom port plug design you came to expect from our LFM series. The Ultra delivers 17Hz to provide the chest thumping bass you are looking for, and with a linear response you no longer need to sacrifice low frequency extension to maintain that smooth "true to the original" sound of your favorite recordings.  

Among the Ultra-X12's many features are:

• A down firing design that virtually eliminates audible port noise
• A long throw 12" driver for deep bass extension
• A powerful 350 watt Audera ® amplifier for precise driver control
• Variable port tuning for customized output
• Signal Sense for automatic turn on/off
• 180-degree phase control
• Line and speaker level inputs
• Detachable power cord

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