VCX + S221 Masterclass in Mongolia: Training Fly Sound LLC’s Team

On October 29, 2023, ZSOUND technical director Mr. Peng traveled to Mongolia to train our distributor’s team on the flagship VCX line array and S221 subwoofer — parameters, internals, software, and rigging, end to end.

The best distributor is an expert distributor — that principle is behind every ZSOUND training program. On October 29, 2023, it took our technical director Mr. Peng to Mongolia, where he delivered a complete sound system training for the teams of our distributor, Fly Sound LLC, built around two of the largest systems in the ZSOUND catalog: the VCX line array and the S221 subwoofer.

Why the VCX + S221 Pair Deserves a Masterclass

This was a deep-dive on serious hardware. The VCX is ZSOUND’s full-size three-way line array element: dual 14-inch low-frequency drivers, a dedicated midrange section, and three compression drivers per box, rated to a maximum SPL of 152 dB — the system that anchors our largest touring and installation projects. Underneath it, the S221 subwoofer pairs dual 21-inch drivers with a 3,600-watt AES power rating and 151 dB of output, reaching down to 27 Hz (±3dB). Systems of this scale reward users who understand them from the inside out — and that is precisely what the course set out to build.

Mr. Peng walks the Fly Sound LLC team through the VCX system — parameters, structure, and software — in the demonstration room.Inside the Curriculum: From Parameters to Structure

The course content ran through the VCX system’s technical parameters, its internal structure, and the technical software that supports setup and tuning. Knowing the numbers is only the start; opening up how the system is built — why the driver complement is arranged the way it is, what the rigging hardware does, how the software models the hang — gives a distributor team the ability to answer their own customers’ hardest questions. By the end of the session, the Fly Sound team had a deeper, structural understanding of ZSOUND’s big, powerful VCX + S221 sound system, not just a familiarity with its brochure.

Hanging and Debugging in the Field

No ZSOUND system training stops at the whiteboard. The outdoor session moved to the truss, where the team flew the VCX array element by element — rigging hardware, angles, and safety checks, followed by hanging and debugging practice on the assembled system. Setting array angles and verifying the result by measurement is where line array theory becomes muscle memory; doing it on the flagship rig, with the engineer who designed the training, is the fastest way to earn that confidence. The participants did the driving, and the system answered every question in the most convincing language it has.

Hanging practice: the VCX array goes up on the truss, element by element, under Mr. Peng’s supervision.Thanks, and What Comes Next

Very special thanks go to our distributor Fly Sound LLC for their support and organization, and to ZSOUND technical director Mr. Peng for delivering the training. Programs like this are how ZSOUND turns a distribution relationship into an engineering partnership: since 2009, our training program has grown to more than 200 classes and nearly 5,000 trainees, across China and overseas — India, Thailand, South Korea, and now Mongolia among them. The knowledge travels; the confidence it builds stays local. For Fly Sound LLC’s team, the next customer conversation about a large-scale VCX system will start from experience, not from a spec sheet.

The Distributor Enablement Model

Mongolia’s session reflects a wider commitment. ZSOUND’s training program has operated on two tracks since 2009 — offline classes staged by our technical team, and online sessions for engineers who cannot travel — with a curriculum spanning the Smaart measurement platform, EASE Focus sound-field modeling, mixing theory, and digital and analog console operation. In 2017 the company was officially authorized by Rational Acoustics for Smaart sales and training in China, formalizing the measurement-based approach that underpins every masterclass. For distributors like Fly Sound LLC, the payoff is concrete: a team that can demo the VCX + S221 system knowledgeably, install it correctly, debug it quickly, and support their customers long after the sale. That is what turns a product shipment into a lasting capability — and it is why our technical director’s whiteboard, showroom, and truss time in Mongolia was an investment both sides will keep drawing on.

Date: October 29, 2023 · Location: Mongolia · Instructor: ZSOUND technical director Mr. Peng · Audience: Fly Sound LLC team · System: VCX line array + S221 subwoofer · Content: parameters, internal structure, software, hanging & debugging

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ZSOUND runs distributor and end-user trainings worldwide, tailored to the systems and markets our partners work in. To arrange a system masterclass with our technical team, contact ZSOUND or your local distributor.

ZSOUND — By listening and thinking.