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PSI Audio A25

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3-way reference active studio monitor


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.



-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.

*Price per unit


Power RMS:

170 + 80 + 50W

Program Power: 


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


±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)


3 Way(s)

Crossover frequency: 

580Hz, 3.1 kHz

Woofer's dim. Ext. / Diaphragm: 

Ø258 mm / Ø210 mm

Medium's dim. Ext. / Diaphragm:

Ø142 mm / Ø102 mm

Tweeter's dim. Ext. / Diaphragm: 

Ø100 mm / Ø25 mm


1 x XLR F / 3P

Signal input: 

1=GND, 2=(+), 3=(-)



Dimensions W x H x D mm: 

320 x 590 x 380

Gross / Net Weight: 

32.1 / 28.4 kg


115/230V (50-60Hz)

Consumption Standby-Quiescent-Max: 

1.8 - 8 - 200 W

Mean / Max Humidity: 

less than 75% / less than 90%

External Temperature: 

5 - 40°C

…the first thing that will strike you about the A25Ms is the sense of scale and power that big speakers with extended low-frequency bandwidth (-6dB at 32Hz) can provide.

…the A25Ms are genuinely revealing monitors that can provide great insight into the components of a mix and how they fit together, or not.

Sound On Sound

Read the complete review here


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