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True Subwoofer EQ
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  True Subwoofer EQ Signature

Features and Specifications

Owners Manual

Bob's design for a high-pressure, miniature sized subwoofer changed everything. With the Sunfire True Subwoofer, music and film enthusiasts could have real bass in a room that could never support a large, bulky, old-school subwoofer.

How do you improve on it? Add balanced inputs, a measurement microphone and internal contour circuitry that automatically optimizes the True Subwoofer EQ Signature to your individual listening/viewing room. The dimensions and physical volume of your room can affect bass, creating bumps and dips in frequency response. Certain bass frequencies are over-accentuated; others are noticeably shy.

To match the True Subwoofer EQ Signature to your room, place the measurement mic in your listening chair and follow four simple instructions. Voila! It's optimized.

Needless to say, the True Subwoofer EQ Signature is our flagship model. At 13 inches cubed, it produces huge bass from a box a fraction of the size of its competitors.

Powered by a special internal Sunfire 2700-watt amplifier using Bob's patented Tracking Downconverter power supply technology, the Sunfire True Subwoofer EQ Signature simply has no equal.


Features and Specs
  • 2700-watt amp featuring patented Tracking Downconverter power supply
  • Frequency response: 16 Hz to 100 Hz (+0, -3 dB)
  • Measurement microphone and automatic internal contour compensation keeps it that way
  • Greater than 116 dB peak SPL with room gain
  • Input coupling is optical and accepts balanced, standard and high-level inputs
  • Bore 10 inches - stroke 2.35 inches (over 360 cubic inches total air volume displacement)
  • Crossover points variable from 30 Hz to 100 Hz
  • Input level (volume) control
  • Phase continuously adjustable 0° to 180°
  • Passive 70 Hz 6 dB per octave hi-pass line level output for satellite loudspeakers
  • Dimensions: 13" by 13" by 13"
  • Two-year warranty

Owner's Manual
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