TECHNOLOGY
The Science Behind True Reference
Precision Redefined. 100% Analog. 100% Swiss.
At PSI Audio, technology is not a marketing feature – it is the foundation of our sound.
Every loudspeaker is engineered and hand-built in Switzerland using proprietary analog circuits that deliver unmatched accuracy, phase stability, and consistency.
Where many manufacturers rely on DSP correction to “fix” acoustic or electronic flaws, PSI Audio designs its monitors to be inherently correct – from the transducers to the amplifiers to the final calibration of each unit.
The result?
Natural, linear, phase-accurate monitoring you can trust blindly.
AOI – Adaptive Output Impedance
Constant control, fully analog.
AOI continuously monitors the movement of the loudspeaker’s transducer and corrects it in real time – entirely in the analog domain.
This ensures:
- Extended bandwidth
- Ultra-low distortion
- Extremely fast transient response
- Precise, controlled cone motion
The driver behaves exactly as intended, even at high SPL, delivering effortless accuracy.


CPR – Compensated Phase Response
Phase linearity without DSP.
CPR is a proprietary analog phase-compensation network that ensures:
- Time-aligned frequencies
- Stable phantom center
- Improved stereo imaging
- Reduced listening fatigue
Where digital systems add latency and artefacts, CPR keeps the entire system phase-coherent while remaining 100% real-time.
Class G/H Amplification
Efficiency meets fidelity.
PSI Audio uses custom Class G/H amplifiers engineered for monitoring applications:
- High efficiency with very low heat
- Extremely low distortion
- Fast, stable power reserves
- Optimized for PSI’s own drivers
Unlike typical Class D designs, Class G provides cleaner transient reproduction and avoids switching noise.



Custom Transducers
Drivers built for accuracy, not hype.
Every PSI Audio monitor uses proprietary drivers designed to operate perfectly with the cabinet and amplification system.
Key characteristics:
- Ultra-linear response
- Low mechanical distortion
- Clean off-axis behavior
- Tight tolerance matching
- Wide dynamic range
Combined with AOI and CPR, these drivers achieve a level of accuracy that DSP-corrected systems can’t match.
Hand-Matched Components
Engineering consistency you can measure.
Every component inside a PSI Audio monitor is individually selected and verified within extremely tight tolerances.
This yields:
- Near-identical left/right matching
- Repeatable performance across units
- Reliability over decades
- No drift in calibration
For professional installations, this is critical — what you hear today will match what you hear years from now.



Optimized Cabinet Design
Acoustically neutral. Mechanically stable.
PSI Audio cabinets are engineered to minimize resonance, maximize dispersion control, and ensure the drivers operate under ideal conditions.
Features include:
- CNC-milled MDF
- Internal bracing
- Damping materials
- Carefully tuned bass reflex or sealed designs
- Vibration management
Every shape, angle, and vent is purpose-designed for acoustical purity.
Individually Calibrated in an Anechoic Chamber
The final guarantee of accuracy.
Each PSI Audio loudspeaker is measured, tuned, and calibrated by hand in our in-house anechoic chamber.
You receive:
- A unique calibration sheet
- Verified frequency response
- Verified phase response
- The proof of linearity for your exact unit
No two monitors are shipped without passing strict quality control benchmarks.
This is one of PSI Audio’s strongest differentiators vs. competitors.




Why 100% Analog?
Many modern studio monitors rely on DSP to compensate for flaws in the mechanical or acoustic design of the system.
PSI Audio chooses the harder — but purer — approach:
Design it right. Then calibrate it. Not correct it.
Benefits:
- Zero latency
- No digital artifacts
- No overshoot or ringing
- No internal AD/DA conversion
- Perfect phase rotation
- Predictable real-world behavior
This is why PSI speakers sound so natural and are trusted in critical applications such as mastering, broadcast, aerospace, and scientific research.
Learn more
Learn more about our Design Philosophy, our Studio Monitors, our Active Bass Traps or the Immersive Monitoring.