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24h / 365days

We offer support for our customers

Mon - Fri 8:00am - 5:00pm (GMT +1)

Get in touch

Cybersteel Inc.
376-293 City Road, Suite 600
San Francisco, CA 94102

Have any questions?
+44 1234 567 890

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About us

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Have any Questions? +49 2382 7087 0

prolight+sound Guangzhou 2024

The new SDX Series

The SDX Series is the logical evolution of the successful SX Series in 1U Class D technology. The integration of the DSB board, developed and produced in Germany, has made it possible to achieve impressive performance data. Like the DSM-428 and 428-FIR DSP processors, the SDX power amplifiers are managed and programmed via the DSM Network Client. The SDX power amplifiers can be controlled individually or in groups via the DSM software. Output power has also been significantly increased. The SDX-427 now delivers 4x3500 watts into 8 ohms and the SDX-418 4x2000 watts into 8 ohms. The integrated AVB/MILAN interface is currently undergoing certification. The built-in interface allows the SDX Series to be integrated as a listener in AVB/MILAN networks. Audio streams can then be routed to the SDX power amplifier via the AVB network management. In an AVB / MILAN network, audio streams are transmitted with virtually no latency, even over long distances.


Plase Show 2024

The time has finally come: The PLASE Show in Hanoi, Vietnam is just a few days away! Be there when it happens: Clear the stage for the largest event technology trade show in Vietnam! Our team from Germany will be present at the booth of our distributor TECHSOUND. We look forward to your visit!

V-Series Designed for KTV

New Vietnam Distributor – Techsound

We are excited to announce that Techsound Vietnam has been appointed as our distributor for the Vietnam market. Mr. Nam, founder and managing director of Techsound, has been working for over 10 years as an audio engineer for international brands in Vietnam. He has the necessary experience and has already provided his know-how in a large number of projects with 4-Acoustic system in Vietnam. Techsound provides a team of young and enthusiastic staff with great passion for audio equipment and the right technical understand for both project planning and installation. We are looking forward to extend our cooperation to the next level.




12"+1,4" powered multi function fullrange speaker

Full technical details coming soon.

The new DSM Software ready to download

DSM Software and Firmware Update 11/23

The new software and firmware update for our DSM-428 processors is now available for download. The update includes a completely new user interface with additional functions and an improved intuitive operation. The firmware update for your hardware includes new functions and bug fixes. In the download area you will find a brief instructions on how to install the software and firmware.

Live and Club Sound Subwoofer


Double 18” Live and Club Sound subwoofer with compact size, high sound pressure level and with low distortions.

Club Sound at its best

CLS-215HB / CLS-218HB

To meet the great demand for a powerful horn-loaded club subwoofer for powerful club sound reinforcement, we have developed our CLS-218HB and CLS-215HB systems. With creative details, mechanically and acoustically, these subwoofers convince with a transparent, powerful sub reproduction and an
extremely high sound pressure.


Horn-loaded 3-way club sound top cabinet CLS-212T with 2x12", 4x6.5" and 1.4" driver. Thanks to the built-in passive crossover for the mid-high range, the CLS-212T top is operated with only two amplifier channels Biamp. The connection is made via a 4-wire speaker cable with Neutrik NL4 connectors.

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