PSI AUDIO A21-M High-Powered, Near- to Mid-Field Studio Monitor (Single, Black)

PSI AUDIO A21-M High-Powered, Near- to Mid-Field Studio Monitor (Single, Black)

PSI AUDIO A21-M High-Powered, Near- to Mid-Field Studio Monitor (Single, Black)

B&H # PSA21MB MFR # A21M-B
PSI AUDIO A21-M High-Powered, Near- to Mid-Field Studio Monitor (Single, Black)

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Expected availability: 7-14 business days

Product Highlights

  • 8.5" Woofer and 3.9" Tweeter
  • Class-G Amplifier: Bi-Amp 120W + 50W
  • Frequency Response: 38 Hz to 23 kHz
  • Max SPL: 119 dB (Pair)
  • Designed for Stereo and Multi-Channel Use
  • Balanced XLR Input
  • AOI, ALG, CPR, PSC Technology
  • For Studio Monitoring Applications
  • Audio-Level and Roll-Off Controls
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Color: Black

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  • 1Description

The single, black PSI Audio A21-M is a high-powered, near- to mid-field monitor designed to be tonally balanced with high-resolution detail and efficient transient response for accuracy in surround setups and stereo monitoring applications. The bi-amplifier delivers 120W to the 6.9" woofer and 50W to the 3.9" tweeter, which combine to provide a frequency response of 38 Hz to 23 kHz at an SPL of 119 dB per pair.

The amplifier output also features the "AOI" output stages and includes a protection circuit, which can be monitored via the red LED on the front panel. The active crossover with integrated "CPR" delivers an impulse behavior with accurate stereo imaging. The crossover is also optimized for maximum phase coherence, projecting a wide horizontal and vertical listening area. The electronics are housed in a unit that is mechanically isolated from the speaker cabinet to avoid resonance at high sound-pressure levels.

The rear panel offers a balanced XLR input and features an audio-level and roll-off control for optimizing the low frequencies for standalone use—or when using an optional subwoofer. The PSI Audio A21-M ships with a power cord, anti-slippage stickers, and an individual frequency-response diagram.

  • High SPL in a compact cabinet
  • Flat frequency response
  • Optimized directivity by phase coherency
  • Class-G, low-temperature amplifier stage
  • Compatible with industry-standard mounting systems
  • Amplifier unit acoustically uncoupled from speaker cabinet
  • Protection circuits with overload indicator
  • True balanced input
  • Designed for stereo and multi-channel monitoring
  • Magnetically shielded for use near video monitors
  • Adaptive Output Impedance (AOI) Technology: The AOI is made up of a system that detects the movement of the membrane and the coil, as well as a filtered counter reaction. This is then tuned to achieve the ideal dampening rate for each frequency
  • Acoustic Load Guide (ALG) Technology: The ALG is used in all regular 2-way and 3-way PSI Audio speakers. The shape and dimensions of the waveguide used in PSI Audio's custom tweeter is specially designed to optimize directivity, as well as maximize sound-pressure level, and extend bandwidth
  • Compensated Phase Response (CPR) Technology: The CPR system is made up of several all-pass filters, each acting in a specific frequency range. Combined, they create a compensated phase response, which provides a constant group delay that is kept to the bare minimum through the entirely analog technology
  • Phantom Standby Control (PSC) Technology: The PSC technology enables remote activation and deactivation of the standby mode of your loudspeakers via the signal cable
UPC: 720260151587
In the Box
PSI AUDIO A21-M High-Powered, Near- to Mid-Field Studio Monitor (Single, Black)
  • Power Cord
  • Individual Frequency-Response Diagram and Data Sheet
  • Set of Anti-Slippage Stickers
  • Limited 5-Year Warranty on Electronics and Transducers
  • Limited 2-Year Warranty on Wooden Cabinet
  • Table of Contents
    • 1Description
    Power Power (RMS): 120 W + 50 W
    Program Power: 170 W
    Input Impedance Sym, 10 kOhms
    Sensitivity Sensitivity for 100 dB @ 1 m: 0.775 V
    Signal to Noise Ratio (SNR) 96 dBA
    SPL Continuous Max SPL @ 1 m: 108 dB (single)
    Program Max SPL @ 1 m: 119 dB (pair)
    Input Overload 24 Vpp
    Frequency Response Response at -6 dB: 38 Hz to 23 kHz
    Tolerances: ±2.5 dB (44 Hz to 20 kHz)
    Distortion (THD) Less than 1.4% (90 Hz to 12 kHz)
    Phase Deviation Phase Tolerances: ±45° (190 Hz to 20 kHz)
    Dispersion Dispersion (P.N. 4 to 16 kHz) at -6 dB: 90° x 90° (H x V)
    System 2-way
    Crossover Frequency 2.4 kHz
    Woofer Woofer's External Diameter: 8.5" / 217.0 mm
    Diaphragm: 6.7" / 170.0 mm
    Tweeter Tweeter's External Diameter: 3.9" / 100.0 mm
    Diaphragm: 1.0" / 25.0 mm
    Connector XLR-F: 3-pin
    Wiring Scheme Signal Input: 1=GND, 2=(+), 3=(-)
    Material of Construction MDF
    Voltage 115 / 230 VAC ±10% (50 to 60 Hz)
    Power Consumption Standby: 1.2 W
    Quiescent: 5 W
    Max: 150 W
    Temperature & Humidity External Temperature: 41 to 104°F / 5 to 40°C
    Mean Humidity: Less than 75%
    Max Humidity: Less than 90%
    Dimensions (W × H × D) 9.8 x 15.7 x 11.8" / 250.0 x 400.0 x 300.0 mm
    Weight 29.1 lb / 13.2 kg
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