A21-M
Perfectly accurate mid field monitor
The A21-M has unmatched impulse response and stereo image.
It is an astonishing monitor used for the most demanding audio productions, allowing the user to be in full control of the sound image in all regards down to the finest details.
Main Features
Power
280 + 45W
Frequency Range
38Hz – 23kHz
Peak max. SPL@1m
121dB
Typical listening distance
1 to 3m
100% Analog – No DSP
Flat frequency response
Perfect stereo image
Class G/H Amplifiers
Individually calibrated
5+1 years warranty
Handmade in Switzerland
Your success story with the A21-M
Only you know where your story begins, and who knows where it will take you?
With the A21-M, you certainly know what you hear: a precise replica of what the sound was intended to be.
Make sure that little details cannot sneak past you during mixing, the A21-M lays them all bare before you. This quality has earned PSI Audio the respect of sound professionals all around the world. As a large nearfield monitor, the A21-M puts the entire soundstage right before your ears with peculiar precision, as lifelike and natural as a reproduction can possibly be. Stop listening for little mistakes – with the A21-M you just hear them. We must warn you though: once you have experienced the real thing, you will not be able to accept anything less.
“This is one of only a few speakers that I have tested with this good a step response.
Of particular note though is the remarkable step response, which is presumably helped by PSI Audio’s “Compensated Phase Response (CPR) system”. This accurate time response is very rare in this type of speaker but here, PSI Audio has proven that it is possible.”
Keith Holland, Resolution Magazine UK
Perfect Stereo Image
Stereo is more than just volume differences between the left and right channels. Phase relations are paramount to determine the accurate position of a signal in the acoustic space – and hence equally important in the development of PSI Audio speakers. The accurate phase alignment provided by PSI Audio CPR technology recreates the vivid spatial listening experience as it was intended. Instrument placement, reverb envelopes, even compression artefacts are easy to identify with the phase-corrected reproduction of PSI Audio speakers.
Expand the bottom end
While the A21-M already reaches down to 38 Hz, its low end can be extended further by adding one or two subwoofers to the system. An A225-M or a pair of A125-M subwoofers will unleash the full potential of the A21-M at any listening level, translating its accurate reproduction qualities into the lowest registers.
Flat Response
| Data | A21-M | [Unit] |
|---|---|---|
| Potential peak power | 280 + 45 | W |
| Continuous max SPL@1 m | 106 | dB |
| Short term max. SPL@1m | 110 | dB |
| Peak max. SPL@1m | 121 | dB |
| Signal to noise ratio (S/N) | 98 | dBA |
| Bandwidth at -6dB | 38-23'000 | Hz |
| SPL tolerances | ±2.0 | dB |
| Phase tolerances | ± 45 (250 Hz – 20 kHz) | deg |
| Dispersion (H x V) | 80 x 30 | deg |
| System | 2 | ways |
| Crossover frequency | 2400 | Hz |
| Woofer ext. diam. | 240 | mm |
| Woofer ext. diam. | 9.4 | in |
| W. diaphragm diam. | 172 | mm |
| W. diaphragm diam. | 6.8 | in |
| Tweeter ext. dim. | 100 | mm |
| Tweeter ext. dim. | 3.9 | in |
| T. diaphragm diam. | 27 | mm |
| T. diaphragm diam. | 1.06 | in |
| Dimensions W x H x D | 250 x 400 x 300 | mm |
| Dimensions W x H x D | 9.9 x 15.8 x 11.9 | in |
| Net Weight | 12.8 | Kg |
| Net Weight | 28.2 | lbs |
| Input connector | 1 x XLR F / 3P | |
| Warranty | 5 (+1) | years |
Flat Response
Each speaker is individually calibrated in our anechoic chamber and is delivered with its frequency response sheet. A proof of quality.
A21-M – The perfect compact 2-way studio monitor
Sitting comfortably in between typical midfield systems and traditional nearfield monitors, the A21-M packs the punch of the larger speakers while retaining a comfortably compact size. It performs well in both scenarios, making it the perfect solution for studios who require the power of a midfield system without having the space for one.
A21-M – Who is it for?
The A21-M is exceptionally suited to all levels of music production, from the recording/producing stage to mixing and even mastering. Broadcast and post pro applications will also benefit from its outstanding transparency and fidelity.
With its outstanding reach in the low end and its still compact size, the A21-M is both versatile and uncompromising in its approach, making it the perfect candidate for all sorts of studios. You can hardly go wrong with an A21-M.
Handmade in Switzerland
All our products are handcrafted in Switzerland with passion and attention to detail.
Manufacturing by hand allows to match and adjust components so that tolerances cancel each other out instead of building up, as is often the case in industrial production.
Choose your colour
Choose between Studio Red, Metal Black and Pure White.
Cabinets are manufactured with great care and attention from the choice of the wood all the way through to the paintwork.
Technical Data & Documents
What our users say
The A21-M is the best monitor I’ve ever owned. It’s the perfect all-round monitor for mixing no matter which kind of music genres in our studios.
Ben Muehlethaler – B-Note Entertainment GmbH (www.b-note.ch)
