Legacy Thumper Owner's Manual - page 14
14
Thumper is a carefully engineered subwoofer, capable of integrating with
the finest speakers.
• Unlike many woofers that suffer from overshoot, Thumper applies a
special EMF countering circuit, which increases power handling and
radically reduces low frequency distortion.
• An enormous stacked magnet structure is custom fabricated to provide
excellent sensitivity. This unit is bolted in compression to secure nearly 20
lbs. of motor structure.
• A high current 200 watt amplifier maintains control of Thumper’s 12” sub-
bass piston.
• Thumper features automatic turn on/off when presented with an audio
signal.
• The high pass filter alleviates the deep bass demands from compact
satellite speakers, thus preventing low frequency strain due to long
excursion.
• A special Thermal Protection circuit protects Thumper’s amplifier from
misuse.
• Level, Crossover Frequency and Phase controls allow Thumper to
integrate precisely into your system.