PCI Audio A21-M

Order Enquiry

The A21-M high power near / mid-field precision monitor covers a broad frequency spectrum, allowing the user to be in full control of their audio production. Its unique and highly optimised assets make it perfect for near, mid-field and surround sound applications where ultimate precision is required.

The powerful bi-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 A21-M unprecedented impulse behavior – with excellent stereo imaging. The crossover is also optimized for maximum phase coherence, projecting a wide horizontal and vertical ideal listening area.

The 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 A21-M also makes ideal front speakers in a surround sound setup, or can be developed in to a more powerful system by adding the A225-M sub – thus protecting your investment

  • Very high SPL in a compact cabinet
  • Flat frequency response
  • Optimised directivity by phase coherency
  • Class G low temperature amplifier stage
  • 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

Power RMS: 120 + 50W
Program Power: 170W
Input Impedance: Sym, 10k Ohms
Sensitivity for 100 dB @ 1m: 0.775 V
Signal to Noise Ratio: 96 dBA
Continuous Max SPL@1m: 108 dB (single)
Input Overload: 24 Vpp
Program Max SPL@1m: 119 dB (pair)
Response at -6dB: 38 – 23000 Hz
Tolerances: ±2 dB (44Hz – 20kHz)
Distortion THD: less than 1.4% (90Hz-12kHz)
Phase tolerances: ±45° (190Hz – 20kHz)
Dispersion (P.N. 4 – 16 kHz) at -6 dB: 90° x 90° (H x V)
System: 2 Way(s)
Crossover frequency: 2.4 kHz
Woofer’s dim. Ext. / Diaphragm: Ø217 mm / Ø170 mm
Tweeter’s dim. Ext. / Diaphragm: Ø100 mm / Ø25 mm
Connectors: 1 x XLR F / 3P
Signal input: 1=GND, 2=(+), 3=(-)
Material: MDF
Dimensions W x H x D mm: 250 x 400 x 300
Gross / Net Weight: 14.8 / 13.4 kg
Voltage: 115/230V (50-60Hz)
Consumption Standby-Quiescent-Max: 1.2 – 5 – 150 W
Mean / Max Humidity: less than 75% / less than 90%
External Temperature: 5 – 40°C