Sunfire True Subwoofer Mark IV Review
By
January 12th, 2004
Summary
This is the subwoofer that started the revolution. At 11 inches cubed, the Sunfire True Subwoofer (now generation IV) re-defines the term "spouse friendly." The True Subwoofer Mark IV is small enough to fit into practically any music or theater system. It's easy to set up and position to quickly add stunningly high levels of deep and musically accurate bass to your system. The True Subwoofer Mark IV incorporates two of Bob Carver's patented inventions: First is the high-pressure, high-back-emf design which allows creation of incredible levels of bass energy from an impossibly small enclosure. Second is Bob?s Tracking Downconverter power source used to supply the internal 2700-watt amplifier. This subwoofer has absolutely no performance equal its size.
Specs
2700-watt amp featuring patented Tracking Downconverter
power supply
Frequency response: 18 Hz to 100 Hz (+0, -3 dB)
Greater than 110 dB peak SPL with room gain
Input coupling is optical and it accepts standard and
high-level inputs
Bore 8 inches - stroke 2.35 inches
Total air volume displacement is over 235 cubic inches
Crossover points variable from 35 Hz to 100 Hz
Crossover slope 36 dB/octave
Input level (volume) control
Phase continuously adjustable 0 to 180 degrees
Passive 70 Hz 6 dB per octave hi-pass line level
output for satellite loudspeakers
Dimensions: 11" by 11" by 11"
Two-year warranty