
A326 D-REX
Extending Bass Reality.
The A326 D-REX is the perfect companion to PSI Audio’s flagship A226-MAIN monitor: a dedicated Dynamic Range Extender designed to elevate accuracy and realism in the lowest octaves. Rather than functioning as a traditional subwoofer, the A326 D-REX extends and enhances the dynamic response between 20 Hz and 100 Hz (160 Hz with LFE option), unlocking unprecedented precision and control in the bass spectrum. By pairing the A226-MAIN’s full-range clarity with the D-REX’s deep extension, engineers gain a monitoring system that combines explosive power with absolute transparency. The result is a breathtakingly lifelike listening experience – faithful, effortless, and uncompromising.
AVAILABLE ONLY THROUGH OUR CUSTOM PRO PARTNERS.
A326 D-REX – ULTIMATE FULL-RANGE PRECISION FOR THE MOST DEMANDING STUDIOS
The A326 D-REX from PSI Audio is the flagship mastering and main monitor, engineered to deliver uncompromising full-range accuracy, extreme headroom, and absolute sonic transparency. Designed for world-class control rooms and mastering environments, it reproduces the entire audible spectrum with exceptional depth, precision, and dynamic control – allowing professionals to hear every detail exactly as it exists in the recording.
Combining PSI’s fully analog design, proprietary driver technologies, and individual calibration, the A326 D-REX maintains perfect phase coherence and ultra-low distortion even at high SPL. Its extended low-frequency performance removes the need for additional subwoofers in many installations, while its effortless power ensures reliable translation for large-scale music, film, and immersive productions.
Despite its immense capability, the A326 D-REX remains true to PSI’s philosophy: not spectacular sound, but truthful sound – giving engineers total confidence in every decision.
In short: the A326 D-REX is built for studios that require nothing less than complete sonic authority across the full range.
MAIN FEATURES
Power
250 + 250 + 250 W
Frequency Range
20 Hz – 100 Hz
Peak max. SPL@1m
126 dB
Typical listening distance
2 to 5.5 m
100% Analog – No DSP
Flat frequency response
Class G/H Amplifiers
Individually calibrated
5+1 years warranty
Handmade in Switzerland
The perfect and most powerful low end in your studio
Given enough power, going low with a speaker is not too much of a challenge. Reproducing low frequencies with precision, however, is a different matter entirely. The PSI Audio A326 D-REX brings a whole new dimension of accuracy to the low end.
PSI Audio has translated its general approach of unaltered, maximum fidelity reproduction to the bass spectrum, allowing for a riveting experience that will change the way you work. Taking the guesswork out of the bass management, the A326 D-REX grants an accurate representation of what is really going on “down below”. Take control and create a sonic wonderland that reaches throughout the entire spectrum with no insecurities and no need to double-check your work on a different system. Get a subwoofer you can trust.

“These are the most accurate speakers I have heard with my own ears.
Listening to them, especially for extended periods of time, is truly a revelation. “
Andy Hong, Tape Op
TECHNICAL DATA
| Data | A326 D-REX | [Unit] |
|---|---|---|
| Potential peak power | 250 + 250 + 250 | W |
| Continuous Max SPL@1m | 103 | dB |
| Short term max. SPL@1m | 110 | dB |
| Peak max. SPL@1m | 115 | dB |
| Signal to Noise Ratio | N/A | dBA |
| Response at -6dB | 20 - 100 | Hz |
| SPL tolerances | N/A | dB |
| Phase tolerances | N/A | deg |
| Dispersion (H xV) | N/A | deg |
| System | 3 | ways |
| Crossover frequency | 80 | Hz |
| Woofer ext. diam. | 290 | mm |
| Woofer ext. diam. | 11.4 | in |
| W. diaphragm diam. | 210 | mm |
| W. diaphragm diam. | 8.3 | in |
| Material: | MDF | |
| Dimensions W x H x D | 399 x 960 x 496 | mm |
| Dimensions W x H x D | 15.7 x 37.8 x 19.5 | in |
| Net Weight | 80 | kg |
| Net Weight | 176.4 | lbs |
| Input connector | 1x XLR F / 3P | |
| Warranty | 5 (+1) years |

FLAT RESPONSE
For studio monitors, flatness is fundamental: you don’t want “smiley-face” tuning (e.g. boosted bass and treble) that might sound pleasant but misrepresents the mix. Flat response helps you judge balance, EQ, and spatial placement properly.

INDIVIDUALLY CALIBRATED
Every PSI Audio monitor is individually measured and calibrated in our full-size anechoic chamber.
We fine-tune each unit by hand until it reaches the exact linear frequency response defined in our reference curves.
Your monitor ships with its personal measurement sheet — a unique fingerprint of its precision and a guarantee of uncompromising Swiss-made accuracy.
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.

A326 D-REX – WHO IS IT FOR?
Designed to complement our largest three-way A226-MAIN, the A326 D-REX packs a lot of power to support full-range listening without compromise. An LFE option is also available, extending the frequency range from 20 Hz to 160 Hz. It makes it compatible with the Dolby Atmos requirements.
The A326 D-REX is at home wherever low frequencies need to be monitored reliably, like in mixing, mastering and post-production.
WHAT OUR USERS SAY
The first time I heard them, I couldn’t believe my ears. I’ve never heard such richness, such precision. When you listen to a live track, you feel like you’re there.
Everything is perfect: an unbeatable stereo image, very precise bass and a very natural midrange with great depth..
Santiago Fernandez – First Floor Studio