PSI Audio Sub A225-M

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An exceptional piece of acoustic design, the A225-M sub-woofer/bass extension is equally suited to use as a mono sub-woofer in a surround sound application or as a bass extension in a stereo system. Designed to work in harmony with the A225-M Sub, all PSI Audio ‘A’ series speakers feature a frequency response roll-off function that, when combined with the A225-M Sub, extends the frequency range down to an incredible 24 Hz, whilst maintaining a flat response.

The powerful class G outputs feature PSI Audio‘s unique “AOI” output stages, giving the A225-M an unprecedented impulse behavior. Each driver and amplifier unit is secured by a protection circuit, which is monitored by a red LED on the front panel.

The electronics are housed in a unit mechanically isolated from the speaker cabinet to avoid resonance at high sound pressure levels. To provide stability and avoid cabinet resonance A225-M is built with a double-box design, combining two cabinets into a single beautifully finished unit.

What did Chris Athens have to say after choosing to purchase the A21 for his room?

The PSI A21 are fantastic near field / mid-field monitors.

Accurate without being clinical. "High Fidelity" without hype. Tons of power and headroom.

I got mine as a demo from Mr Dent at Zen Pro Audio and I never gave 'em back [sorry Warren].

Chris Athens - Boss Man @ Chris Athens Masters. Austin TX. U.S.A.

PSI Audio Sub A225-M Features

  • ALL PSI Monitors come with a 5 Year Warranty
  • Built in anti-resonance system in a double box cabinet
  • Class G low temperature amplifier stage
  • Amplifier unit acoustically uncoupled from speaker cabinet
  • Real balanced input with outputs for satellite systems
  • Protection circuits with overload indicator
  • Designed for stereo and multichannel monitoring
  • Magnetically shielded for use close to video monitors
  • Phase and amplitude response compatible with all PSI Audio monitors
  • AOI Technology
  • CPR Technology
  • PSC Technology

PSI Audio Sub A225-M Specifications

  • Power RMS: 200 W
  • Program Power: 300 W
  • Input Impedance: Sym, 10k Ohms
  • Sensivity for 100 dB @ 1m: 0.775 V
  • Signal to Noise Ratio: -116 dBA
  • Continuous Max SPL@1m: 111 dB (single)
  • Input Overload: 24 Vpp
  • Program Max SPL@1m: 116dB / half space
  • Response at -6dB: 24 - 100 Hz
  • Tolerances: ±2 dB (28Hz - 65Hz)
  • Distortion THD: < 1.5% (50Hz-200Hz)
  • System: 1 Way
  • Crossover frequency: 90Hz
  • Woofer's dim. Ext. / Diaphragm: 2x 10"
  • Connectors: 2 x XLR F / 2 x XLR M
  • Signal input: 1=GND, 2=(+), 3=(-)
  • Material: MDF / double box
  • Dimensions W x H x D mm: 320 x 700 x 500
  • Gross / Net Weight: 43.1 / 38.4
  • Voltage: 115/230V (50-60Hz)
  • Consumption Standby-Quiescent-Max: 1.7 - 4 - 200 W
  • Mean / Max Humidity: < 75% / < 90%
  • External Temperature: 5 - 40°C

Our ONE WITH EVERYTHING ZEN WARRANTY extends the standard manufacturer warranty by one year, see our ZEN WARRANTY page for details.