A25-M

The pinnacle of current PSI Audio system development, the A25-M main / mid-field reference monitor features a staggering precision of +/- 1.5 dB tolerance between 38Hz and 20KHz.
The tweeter unit is hand-crafted in-house in order to ensure performance and accuracy. These highly optimised features make the A25-M unique. A true reference speaker for stereo and surround sound applications where ultimate precision is required. The powerful tri-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 A25-M unprecedented impulse behavior – with excellent stereo imaging.
The crossover is also optimized for maximum phase coherence, which allows for a very broad horizontal and vertical ideal listening area. Tilting the mid-high range unit by 90° maintains the directivity accuracy when using the speaker horizontally. The A25-M’s 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 A25-M also makes ideal front speakers in a surround sound setup, or can be developed in to a more powerful system by adding the pair A225-M sub – thus providing an upgrade path and protecting your investment.

  • A25-M
  • A25-M
  • A25-M
  • A25-M
  • A25-M
  • Tweeter unit hand made by PSI Audio.
  • Flat frequency response.
  • Optimised directivity by phase coherency.
  • Class G low temperature amplifier stage.
  • Rotation of mid-range section for horizontal use.
  • 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.
User manual: 
Technical data sheet: 
Power RMS: 
170 + 80 + 50 W
Program Power: 
300 W
Input Impedance: 
Sym, 10k Ohms
Sensivity for 100 dB @ 1m: 
0.775 V
Signal to Noise Ratio: 
96 dBA
Continuous Max SPL@1m: 
110 dB (single)
Input Overload: 
24 Vpp
Program Max SPL@1m: 
121 dB (pair)
Response at -6dB: 
32 - 23000 Hz
Tolerances: 
±1.5 dB (38Hz - 20kHz)
Distortion THD: 
less than 1% (70Hz-20kHz)
Phase tolerances: 
±45° (150Hz - 20kHz)
Dispersion (P.N. 4 - 16 kHz) at -6 dB: 
90° x 80° (H x V)
System: 
3 Way(s)
Crossover frequency: 
580Hz, 3.1kHz
Woofer's dim. Ext. / Diaphragm: 
Ø 258 mm / Ø 210 mm
Medium's dim. Ext. / Diaphragm: 
Ø 142 mm / Ø 102 mm
Tweeter's dim. Ext. / Diaphragm: 
Ø 100 mm / Ø 25 mm
Connectors: 
1 x XLR F / 3P
Signal input: 
1=GND, 2=(+), 3=(-)
Material: 
MDF
Dimensions W x H x D mm: 
320 x 590 x 380
Gross / Net Weight: 
32.1 / 28.4 kg
Voltage: 
115/230V (50-60Hz)
Consumption Standby-Quiescent-Max: 
1.8 - 8 - 200 W
Mean / Max Humidity: 
less 75% / less than 90%
External Temperature: 
5 - 40°C