PSI AUDIO A21-M Pure White

PSI Audio A21-M Pure White is a high-precision two-way active studio monitor, handmade in Switzerland and designed for demanding professional applications. With 280W + 45W of Class G/H analog power, an extended frequency response from 38Hz to 23kHz, and a flat response with phase-aligned accuracy, the A21-M provides an exceptionally detailed and natural sound image for mixing, mastering, post-production, and critical listening.

The A21-M combines the power of a midfield system with the compact footprint of a nearfield monitor, making it ideal for studios where space is limited but sonic performance is non-negotiable. Each unit is individually calibrated in an anechoic chamber and shipped with its frequency response sheet, ensuring precise and reliable monitoring out of the box. Its handcrafted tweeter, linear phase CPR technology, and perfect stereo imaging reveal every nuance in your mix—from subtle reverbs to phase issues and compression artifacts.

The 2022 revision of the A21-M features an improved tweeter for even greater clarity and midrange precision, while the extended low-frequency performance can be further enhanced with optional A125-M or A225-M subwoofers. This makes it an outstanding choice not just for music producers and engineers, but also for broadcasters, film post-production studios, and audiophile home setups. The 100% analog signal path guarantees uncompromised audio fidelity without any DSP coloration.

Engineered for critical decisions, the A21-M makes it easy to identify mix imbalances, frequency clashes, and imaging inconsistencies. Its refined phase coherence and wide 80° x 30° dispersion ensure accurate translation of mixes across playback systems. Built with extreme attention to detail, the cabinet is finished in elegant Pure White, with other color options also available.

KEY FEATURES

• 2-way active studio monitor with 280W + 45W Class G/H amplification
• Flat frequency response from 38Hz to 23kHz (±2dB)
• Maximum SPL peak at 121 dB, suitable for mid-sized rooms
• Individually calibrated with included frequency response printout
• Handmade tweeter and CPR phase-alignment technology
• Perfect stereo imaging and wide listening sweet spot
• 100% analog design – no DSP
• Expandable with A125-M or A225-M subwoofers
• Handcrafted in Switzerland, available in Pure White, Studio Red, and Metal Black

TECHNICAL SPECIFICATIONS

• Power: 280W + 45W analog Class G/H
• Frequency Response: 38 Hz – 23 kHz
• Max SPL Peak: 121 dB @ 1m
• Continuous Max SPL: 106 dB
• Phase Tolerance: ±45° (250 Hz – 20 kHz)
• Dispersion (H x V): 80° x 30°
• Driver Configuration: 2-way (9.4" woofer, 1.06" tweeter)
• Crossover Frequency: 2400 Hz
• Cabinet Dimensions: 250 x 400 x 300 mm
• Weight: 12.8 kg
• Input: Balanced XLR
• Warranty: 5 years + 1 year upon registration