A21-M

A21-M

Price per SET ( 2 loudspeakers )

The A21-M high power near / mid-field precision monitor from PSI Audio covers a broad frequency spectrum, allowing the user to be in full control of their audio production. Its unique and highly optimised assets make it perfect for near, mid-field and surround sound applications where ultimate precision is required.

The powerful bi-amplified output stages features the unique “AOI” output stages and has a protection circuit, which can be monitored via the red LED on the front panel.
The active crossover, with integrated “CPR”, gives the A21-M unprecedented impulse behavior – with excellent stereo imaging. The crossover is also optimized for maximum phase coherence, projecting a wide horizontal and vertical ideal listening area.

The electronics are housed in a unit mechanically isolated from the speaker cabinet to avoid resonance at high sound pressure levels.

Designed to work in harmony with the full range of A series monitors the A21-M also makes ideal front speakers in a surround sound setup, or can be developed in to a more powerful system by adding the A225-M sub – thus protecting your investment.

Product Key Features

  • Very high SPL in a compact cabinet.
  • Flat frequency response.
  • Optimised directivity by phase coherency.
  • Class G low temperature amplifier stage.
  • Compatible with industry standard mouting systems.
  • Amplifier unit acoustically uncoupled from speaker cabinet.
  • Protection circuits with overload indicator.
  • Real balanced input.
  • Designed for stereo and multichannel monitoring.
  • Magnetically shielded for use close to video monitors.
  • AOI Technology.
  • ALG Technology.
  • CPR Technology.
  • PSC Technology.


Product Data

Power RMS:120 + 50W
Program Power:170W
Input Impedance:Sym, 10k Ohms
Sensitivity for 100 dB @ 1m:0.775 V
Signal to Noise Ratio:96 dBA
Continuous Max [email protected]:108 dB (single)
Input Overload:24 Vpp
Program Max [email protected]:119 dB (pair)
Response at -6dB:38 - 23000 Hz
Tolerances:±2 dB (44Hz - 20kHz)
Distortion THD:less than 1.4% (90Hz-12kHz)
Phase tolerances:±45° (190Hz - 20kHz)
Dispersion (P.N. 4 - 16 kHz) at -6 dB:90° x 90° (H x V)
System:2 Way(s)
Crossover frequency:2.4 kHz
Woofer's dim. Ext. / Diaphragm:Ø217 mm / Ø170 mm
Tweeter's dim. Ext. / Diaphragm:Ø100 mm / Ø25 mm
Connectors:1 x XLR F / 3P
Signal input:1=GND, 2=(+), 3=(-)
Material:MDF
Dimensions W x H x D mm:250 x 400 x 300
Gross / Net Weight:14.8 / 13.4 kg
Voltage:115/230V (50-60Hz)
Consumption Standby-Quiescent-Max:1.2 - 5 - 150 W
Mean / Max Humidity:less than 75% / less than 90%
External Temperature:5 - 40°C


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