The PSI Audio A21-M ranks #19 out of 67 total Large Size Powered Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
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#19 PSI Audio A21-M: $3,720 each B&H Photo Video eBay
Pros: ASR measured 39.6Hz -3dB extension and a 2.2dB response span from 300Hz to 5kHz, giving useful bass and broadly even mids. Its 6.87 ideal-subwoofer score supports serious monitoring, with analog phase compensation offering an alternative to DSP-based systems.
Cons: The measured tonal result is good rather than a clear advance over less costly competitors. There is no built-in automatic room-calibration system, so placement or external correction still matters. The premium construction and analog circuitry should not be mistaken for proof of better audible performance.
How it compares: Just above it: HEDD Type 20 MK2 - $1080 more. Just below it: Genelec S360 - $1055 more.
| Bass Extension (-10dB) | 33.2Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) |
| Country | Switzerland |
| Crossover Points | 2.4kHz |
| Dimensions | 9.8"H x 15.7"W x 11.8"D (250 x 400 x 300 mm) (9.9 x 15.8 x 11.9 in) |
| Drivers | 27mm handmade dome tweeter, 172mm cone woofer |
| Enclosure | ported |
| Frequency Response | 38Hz-23kHz -6dB |
| Max SPL | 110dB short term, 121dB peak |
| Power Output (Watts) | 335W total (280W woofer, 55W tweeter, Class A/B) |
| Warranty | 5+1 years |
| Weight | 28.2 lbs / 12.8 kg (28.2 lbs) each |
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