Author Archives: David Bergmann

PSI Audio introduces the first extended main monitor system in company history: the combination of A226-MAIN and A326 D-REX. The recently introduced speaker system reaches a total of 132 dB through seven drivers. The A226-MAIN combines two symmetrically mounted 10-inch woofers, the EXD midrange driver and an all-new aluminium coil tweeter, while the A326 D-REX adds three more woofers to fulfil its function as a Dynamic Range EXtender. The two models can be combined as a column, or side-by-side, depending on the installation requirements at hand.

The full experience: big main monitoring from PSI Audio

The A226-MAIN is PSI Audio’s first foray into main monitor territory, now enhanced even further with the A326 D-REX extension. Mounted on top of each other, or side by side, these speakers provide the classic main monitor experience – but with PSI Audio style Swiss precision. The entire range of the spectrum is reproduced perfectly, with flawless dynamics and outstanding transparency. Combined, the system reaches up to 132 dB, more than enough for even the most demanding situations. This is the winning combination, the ultimate in studio monitoring – the real thing.

Power and precision redefined: A226-MAIN

The first PSI Audio main monitor A226-MAIN is an active, all-analogue, three-way speaker with symmetrically configured 10-inch woofers. It combines the renowned EXD midrange driver with a specifically developed aluminium coil tweeter and the double woofers to cover the entire spectrum from 20 Hz to 23 kHz. More importantly, it covers that frequency range with the utmost accuracy, reproducing the signals exactly as they were intended – a feat arguably more difficult with growing speaker size. The exact acoustic alignment of all involved drivers is one of PSI Audio’s most praised qualities, and the A226-MAIN is a showcase for the manufacturer’s proficiency in handling phase: from an impressive 100 Hz upwards, all frequencies are perfectly aligned.

Extending bass reality: A326 D-REX

Since PSI Audio has mastered the art of aligning phase between multiple drivers, the idea of adding more woofers to the system was quite obvious. The result is the A326 D-REX, which stands for Dynamic Range EXtender. As the A226-MAIN already reaches all the way down to 20 Hz, the term “subwoofer” cannot be reasonably applied to the A326 D-REX. Instead, the three additional woofers support the main speaker in the low frequencies, granting the system a more powerful and hence more dynamic bass response, bringing extra clarity and precision. In tandem, the A226-MAIN and the A326 D-REX become utterly exciting in their remarkably exact audio reproduction. For LFE use, the A326 D-REX offers a special mode that opens its frequency band upwards to 160 Hz – perfectly flat, of course.

Absolute accuracy from the smallest to the largest systems

This commitment to sonic accuracy is not new for PSI Audio. In fact, all speakers from the Swiss manufacture adhere to the ideal of uncoloured, true-to-life sound reproduction. As a result, all models are sonically compatible with each other, making it possible to mix and match speakers of different sizes to build more extensive setups, especially immersive installations. The combination of A226-MAIN and A326 D-REX for the main stereo set can easily be enhanced with another A226-MAIN in horizontal configuration as a center speaker, a few A21-M as surrounds and A17-M as ceiling speakers – and all these speakers will work together just fine, creating one homogenous sound field.

Swiss-precision craftsmanship

This level of compatibility between various models can only be achieved with very narrow tolerances in manufacturing the speakers. All PSI Audio studio monitors are handcrafted by skilled specialists at the company’s own workshop in Yverdon-les-Bains, Switzerland. To underline this commitment to quality, every single speaker is measured and calibrated in the anechoic chamber, and it comes with its very own measuring protocol. 

Prices and availability

PSI Audio A226-MAIN and A326 D-REX are available immediately. A version with physically separate electronics is currently in development. Please refer to your local dealer for pricing.

The recently introduced main monitor A226 MAIN from PSI Audio already reaches all the way down to 20 Hz. Its new extension hence is not a subwoofer in the typical sense – it functions as a dynamic range extender. 

Not a sub, but an extension: A326 D-REX

The PSI Audio A326 D-REX is conceptualized as an extension for the A226 MAIN monitor speakers. As a result, it is not meant to work like other subwoofers, which are generally understood to add low range to a speaker’s spectrum. The A326 D-REX instead works as a Dynamic Range EXtender – hence the “D-REX” part of the name. The device features three 10-inch drivers, covering a range from 20 Hz to 100 Hz – still very subwoofer so far. What makes it different from a sub is how it synergizes with the A226 MAIN.

Big Combination: A226 MAIN and A326 D-REX

The A326 D-REX works in tandem with the A226 MAIN from PSI Audio as if they were one speaker. The Dynamic Range Extender is fully and perfectly aligned with the monitor speaker in both frequency and phase, as if both devices were just one big floorstanding system. Combined, the setup reaches up to 126 dB peak sound pressure – but more importantly, it achieves outstanding dynamic transparency, clarity and power in the low frequencies. With bass this tight and accurate, PSI Audio underlines its claim for the A226 MAIN: This is it. The real thing.

True neutrality breeds compatibility

Like all PSI Audio speakers, the combination of A226 MAIN and A326 D-REX adhere to the ideal of neutral sound recreation. One effect of this principle is the absolute compatibility of PSI Audio monitor speakers across the entire range, making it possible to mix and match speakers for large setups. So while it would certainly be possible to construct an immersive setup completely with A226 MAIN and A326 D-REX, spatial or other constraints may advise to use a variety of speakers: A226 MAIN with A326 D-REX for the front left and right, but then A21-M, A17-M or A14-M for the surrounds and ceiling speakers in an immersive listening environment. Since all PSI Audio speakers accurately reproduce sound, without introducing any additional flavourings, this kind of mixing and matching still keeps the sonic image consistent.

Swiss quality manufacturing

Like all PSI Audio monitor speakers, the A326 D-REX is developed and manufactured by highly trained specialists in the company’s own workshop in Switzerland. Every single speaker and subwoofer is calibrated individually in the anechoic chamber, the resulting graphs are delivered with the devices. The meticulous hand-building of each and every speaker is a testament to the PSI Audio commitment to quality, reliability and longevity.

PSI Audio introduces the A226-MAIN, an active analogue three-way mastering monitor for high-end studio sound. Two 10-inch woofers in symmetrical configuration combine with an all-new aluminium coil tweeter and the famous EXD midrange driver to produce the most precise sound image possible. Over 700 W total power per speaker propel the entire spectrum from 20 Hz to 23 kHz, with impressive tolerances and a maximum SPL level of 112 dB as per AES 75 standard. The A226-MAIN is the pinnacle of PSI Audio speaker development. The Big One. The Real Thing.

Yverdon-les-Bains, 7th May 2025 – PSI Audio presents the new three-way main studio monitor A226-MAIN. Combining all the PSI Audio qualities and sizing them up, the A226-MAIN is the ideal monitoring system for high-end studios.

The Big One: A226-MAIN

PSI Audio A226-MAIN is the largest speaker the Swiss manufacturer has ever developed. This monitor is intended primarily for mastering purposes. Two 10-inch membranes for the lows, complemented by midrange driver and tweeter, all in a solid, fully reinforced double MDF enclosure – the A226-MAIN means business. The four power amps with 500 W (2 x 250 W), 150 W, and 65 W amplify the frequency range from 20 Hz to 23 kHz (-6 dB) to 112 dB (at 1 m according to the new AES 75 standard) and up to 126 dB peak. The fine art of PSI Audio lies in making these components work together in a way that creates the most accurate sound image to date, reproducing audio exactly as it was originally captured. This is it. The real thing.

Peak driver technology for absolute fidelity

Its size is but one of the things that set the PSI Audio A226-MAIN apart. Every detail is a superlative in itself. Take the high-frequency driver: PSI Audio developed an all-new aluminium coil dome tweeter to accurately depict every detail in the highs. For the midrange, the engineers in the Swiss manufacture already had their renowned EXD driver from the A25-M available. For the lower frequencies, the A226-MAIN employs two woofers of 10 inches in diameter each, which are driven by the same signal, making the speaker a three-way system. The double flow guide bass reflex ensures a deep and powerful bass without air turbulence or noise.

Symmetrical setup, orientable stand and rotatable baffle

In the PSI Audio A226-MAIN, the transducers have been arranged in a specific way. The two woofers are placed in a symmetrical configuration on either side of the mid-high baffle, which can be rotated as required. This configuration and the waveguides achieve a limitation of vertical dispersion and a wide sweet spot. There is also a stand designed specifically for this monitor to allow optimum orientation at all times. 

Proprietary technology: PSI Audio Greatest Hits

As the new flagship monitor speaker, the A226-MAIN combines all the proprietary technology that already made the smaller PSI Audio speakers the most accurate monitor speakers. Compensated Phase Response (CPR) ensures perfectly aligned audio reproduction of the different ways, Adaptive Output Impedance (AOI) monitors membrane movement and optimizes transients. The powerful Class G/H amplifiers efficiently drive the system with high SPL output and low distortion. The technology is entirely and 100 percent analogue to guarantee accurate reproduction and avoid latency times. All these innovations combine to provide precise audio playback – the perfect listening tools for discerning professionals.

Swiss precision manufacturing quality

Like all PSI Audio speakers, the A226-MAIN is developed, built, and calibrated entirely by well-trained specialists in the company’s own manufacture in Switzerland. From the careful selection of components to the final calibration in the anechoic chamber, every step in the production process is done with the world-famous Swiss precision. Every A226-MAIN comes with its very own measuring graph – a sign of absolute quality.

Prices and availability

The PSI Audio A226-MAIN is available for preorder immediately. The MSRP will be announced shortly.