PSI Audio A21-Ms White
Midfield Precision Monitor with New Tweeter
The PSI A21-M Studio Red is a high-power two-way active monitor with bi-amped 120 W + 50 W output. It delivers pristine resolution through 100% analog circuitry, offering neutral and precise sound reproduction across the full frequency spectrum. With a bandwidth from 44 Hz to 20 kHz, it ensures exceptional clarity, impulse accuracy, and tonal balance.
The newly developed tweeter was designed and manufactured entirely in PSI Audio’s own Swiss facility. With higher sound pressure and reduced distortion, it takes the A21-M’s already impressive accuracy and imaging to the next level, resulting in an exceptionally natural sound.
Featuring PSI’s proprietary AOI Technology (Adaptive Output Impedance) and CPR Technology (Compensated Phase Response), the A21-M guarantees precise phase alignment and pure analog performance. Each unit is individually calibrated in an anechoic chamber, making it ideal as a main monitor for medium-sized rooms, recording, mastering, post-production, and surround applications.
Features
- 2-way active main monitor
- Magnetically shielded
- AOI Technology (Adaptive Output Impedance)
- CPR Technology (Compensated Phase Response)
- Individual calibration in anechoic chamber
Specifications
- Power RMS: 120 W + 50 W
- Continuous Max SPL @ 1 m: 108 dB (single)
- Frequency Response (±2 dB): 44 Hz – 20 kHz
- Phase Tolerance (±45°): 190 Hz – 20 kHz
- Crossover Frequency: 2.4 kHz
- Woofer Dimensions (ext./diaphragm): ø210 mm / ø170 mm
- Tweeter Dimensions (ext./diaphragm): ø100 mm / ø25 mm
Dimensions & Weight
- Dimensions (W x H x D): 250 x 400 x 300 mm
- Gross / Net Weight: 14.2 / 12.8 kg
- Colour: White
Product safety information
Manufacturer information:
PSI Audio
Rue de l'Industrie 2
Yverdon-les-Bains, Schweiz, 1400
jean-luc.geneva@psiaudio.com
https://www.psiaudio.com/
Responsible person:
AUDIOWERK e.Kfm.
Schulstrasse 30
Rheinland-Pfalz
Hargesheim, Deutschland, 55595
info@audiowerk.eu
https://www.audiowerk.eu
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