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Presence A-120 12" Freestanding Powered Subwoofer (Discontinued)
Part # A-120
Model # A-120
The A-120’s integral amplifier incorporates a defeatable signal-sensing circuit that automatically powers up the amplifier when a signal is detected and it's double-insulated isolated-ground electrical supply prevents electrical ground loops.

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Description

Details

The A-120 subwoofer was designed for exceptional performance and value. It features a 12'' extra-long excursion woofer with high BL motor. The bass reflex enclosure with flared port ensures extended bass response and high acoustic efficiency.

The woofer is driven with an integral 300W class A/B amplifier utilizing the patented BASH technology for high electrical efficiency. The integral rear-mounted 300 watt amplifier includes level, phase (continuously variable 0-180°) and crossover control to contour the subwoofer’s output to blend with virtually all loudspeakers and room environments. The integral low pass crossover network is continuously-variable from 40Hz to 120Hz and can be bypassed if it is preferable to use an external crossover located in an outboard receiver or processor.

The A-120’s integral amplifier incorporates a defeatable signal-sensing circuit that automatically powers up the amplifier when a signal is detected. A double-insulated isolated-ground electrical supply prevents electrical ground loops and reduces the noise floor of the entire audio system.

What's in the box?

  • Subwoofer
  • 4 Spiked Feet
  • 4 Knurled Lock Nuts
  • 4 Rubber Feet
  • Power Cord
  • Manual and Warranty Card
Features

Features

  • 12'' extra-long excursion woofer with high BL motor. The bass reflex enclosure with flared
  • port ensures extended bass response and high acoustic efficiency
  • woofer is driven with an integral 300W, class A/B amplifier utilizing patented
  • BASH technology for high electrical efficiency
  • The integral rear-mounted 300W amplifier includes level, phase and crossover control to contour the subwoofer’s output
  • The integral low-pass crossover network is continuously variable from 40Hz to 120Hz and can be bypassed if it is preferable
  • The A-120’s integral amplifier incorporates a defeatable signal-sensing circuit that
  • automatically powers up the amplifier when a signal is detected
  • A double-insulated, isolated-ground electrical supply prevents electrical ground loops andreduces the noise floor of the entire audio system
Specification
Frequency Response28Hz - 300 Hz (System Response)
Crossover Response40Hz - 120Hz (Low-pass filter with bypass switch)
Phase Adjustment0 - 180 degrees (Continuously variable)
Amplifier Output Power300 watts, with thermal and clipping limiters
Audio InputsSpeaker Level (Stereo 5-way binding post)
Input Impedance:ine Level - 20k ohms, Unbalanced Speaker Level -220 ohms
Input Power120V 60Hz AC
Input Power ConnectionIEC 2-wire receptacle with integral fuse holder
Power (Mains) Fuse3.15A 250V T3.15AL (5x20mm) style Slow Blow
Power ModesAuto signal sensing and always on
Auto Off Delay~10 minutes
Overall Dimensions (H x W x D) (Without Feet)17-5/16" (440 mm) x 15-3/8" (390 mm) x 14-3/4" (375 mm)
Shipping Dimensions (H x W x D)20" (440 mm) x 21" (533 mm) x 20" (508 m)
Weight43 lbs (19.5 kg)
Shipping Weight51 lbs (23.2 kg)
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