A326 D-REXBeyond
the low end.
Analog Dynamic Range Extender
LFE included as standard
Reveal the lowest octaves. Built to extend the A226-MAIN, with precision you can feel.

01 / A deeper perspective
Low frequencies.
High definition.
The A326 D-REX brings dedicated low-frequency extension to your monitoring system, from 20 to 150 Hz. LFE is included as standard, extending the range to 200 Hz for low-frequency effects monitoring.

02 / Designed together
A226-MAIN.
A326 D-REX.
One perspective.
Designed to complement the A226-MAIN studio monitor, the A326 D-REX adds dedicated control in the lowest octaves. Together, they give recording, mixing and mastering rooms a monitoring system built around the same reference: the recording itself.
03 / The PSI Audio approach
Nothing added.
Every detail
revealed.
Precision begins long before the first listening session.
Analog by design.
An entirely analog signal path, with Class G/H amplification and no DSP. The aim is faithful low-frequency reproduction, so you can judge the balance of your recording.
Measured individually.
Each unit is measured and adjusted in an anechoic chamber. Its individual measurement sheet documents the response of the actual loudspeaker delivered to your studio.
Made by hand. In Switzerland.
Assembly and adjustment take place in Switzerland. Working by hand allows components to be matched and tolerances to be addressed during manufacturing.
04 / Built for critical listening
Low-frequency monitoring.
Across your workflow.
Recording, mixing and mastering
Kick, bass and the lowest fundamentals shape the balance of a mix. The A326 D-REX extends the A226-MAIN system into this region, giving engineers a dedicated reference when evaluating low-end level, equalisation and dynamics.
Its role as a Dynamic Range Extender goes beyond the familiar studio subwoofer category: it is designed as a companion to the A226-MAIN, with the same focus on accuracy.
Post-production and immersive audio
LFE is included as standard. With a frequency range extending from 20 to 200 Hz in LFE operation, the A326 D-REX also addresses low-frequency effects monitoring in film and immersive audio workflows.
Discuss your room, listening distance and monitoring configuration with a Custom Pro partner to plan the system around your production needs.
05 / In detail
A326 D-REX
technical specifications.
| Frequency range | 20–150 Hz |
| LFE included as standard | 20–200 Hz |
| Potential peak power | 330 + 330 + 330 W |
| Typical listening distance | 2 – 5.5 m |
| Signal path | 100% analog · No DSP |
| Amplification | Class G/H |
| Dimensions (W × H × D) | 399 × 960 × 496 mm |
| Net weight | 60 kg |
| Input connector | 1 × XLR female, 3-pin |
| Cabinet material | MDF |
06 / A closer look
Know your reference.
What is the A326 D-REX?
The PSI Audio A326 D-REX is an analog Dynamic Range Extender for professional studio monitoring. It is designed to complement the A226-MAIN in the lowest octaves, rather than operate as a full-range main monitor on its own.
Is LFE included?
Yes. LFE is included as standard. The range is 20 – 150 Hz for low-frequency extension and 20 – 200 Hz in LFE operation.
Why does a flat response matter?
A monitoring reference should help you hear the balance in the recording. A flat response avoids adding a flattering bass emphasis that could lead to the wrong equalisation or level decision during a mix.
How is each unit checked?
Each A326 D-REX is individually measured and calibrated, and supplied with its own measurement sheet. This makes the performance of the delivered unit part of the product documentation.
Where can I discuss an installation?
The A326 D-REX is available through PSI Audio Custom Pro partners. Find a Custom Pro partner for advice on the A226-MAIN and A326 D-REX system.
Available through Custom Pro partners
Your room.
The whole picture.
Build your system with a PSI Audio Custom Pro specialist.
