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.
| 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 |
