Sunfire True Subwoofer Mark IV Review

Specifications

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