Martin Audio DX4.0 Controller

Martin Audio DX4.0 Controller is a controller with integrated high-end DSP, allowing to manage and process audio signals with almost absolute precision. Thanks to the comprehensive EQ, delay, limiter and FIR filter system, the device provides stable sound quality, effective speaker protection and optimization for many different environments.

General introduction to Martin Audio DX4.0 Controller

Martin Audio DX4.0 is a professional loudspeaker processor and audio matrix designed for live sound systems, auditoriums and fixed installations. It features 4 input channels (Analog, AES3 and Dante™) and 8 output channels, and integrates a high-performance 96kHz DSP, providing extremely detailed and precise audio signal processing.

DX4.0 not only fully supports optimization tools such as parametric EQ, delay, crossover, all-pass filter, but also possesses advanced features such as FIR optimization for O-Line systems and VX limiting to protect passive speakers equivalent to active speakers. In addition, the device can be controlled and monitored remotely via Ethernet using Martin Audio VU-NET software, allowing efficient management of multiple devices at the same time.

Thanks to the combination of powerful DSP performance, diverse connectivity and global stability with 100-240V power supply, Martin Audio DX4.0 Controller considered the ideal choice for high-end audio systems where precision, reliability and flexible customization are required.

Outstanding product specifications:

• 4 input channels (Analog, AES3, Dante™): Flexible connection, compatible with both digital and analog systems.
• 8 independent output channels: Detailed control of each speaker group, optimized for line array or multi-zone.
• High performance 96kHz DSP: 10Hz – 40kHz frequency range, limits signal distortion, maintains hi-fi quality.
• FIR optimization: O-Line line array phase optimization, ensuring in-phase sound.
• VX Limiting: Speaker protection with peak, RMS and excursion limiter.
• Comprehensive EQ: Parametric, shelving, all-pass filters for detailed fine-tuning.
• Delay time: precise signal alignment, system-wide phase synchronization.
• Remote control: over Ethernet with Martin Audio VU-NET software.
• Global Power Supply: 100–240V, 50/60Hz, convenient for touring & permanent installation.

Detailed review of the features and outstanding characteristics of Martin Audio DX4.0

When choosing a professional audio controller, what engineers care about most is precise signal processing, comprehensive speaker protection, and flexibility when deploying in a variety of environments. Martin Audio DX4.0 Controller fully meets those criteria thanks to the integration of 96kHz DSP, support for many connection standards and a series of modern technologies such as FIR filter, VX Limiting and Multiband Limiting. This is the central device line, considered the "control brain" for high-end performance, conference or karaoke sound systems.

4-input, 8-output matrix processor

Martin Audio DX4.0 Controller Designed with 4 input channels (Analog, AES3 and Dante™) and 8 independent output channels, providing extremely flexible and precise signal distribution. The matrix structure allows the sound engineer to assign any input to any output without limitation, while also being able to fine-tune the attenuation level individually for each path.

This is especially important when deploying large-scale line array systems in auditoriums, outdoor stages or conference centers, where each audience area needs to be individually balanced for volume while maintaining overall uniformity. It is this flexibility that makes the DX4.0 an ideal control “brain” for multi-zone systems.

Supports many modern connection standards

Not only stopping at traditional analog connection standards, Martin Audio DX4.0 Controller It also supports AES3 digital audio and Dante™ network audio – standards that are increasingly being used in professional audio systems. With Dante™, dozens of digital channels can be transmitted with extremely low latency and near-lossless quality using just a single network cable.

This reduces wiring costs, shortens installation times and ensures stable signals at large scale events. In fact, this solution makes it much easier for the engineering team to deploy the system than using a series of bulky and easily damaged analog cables.

High-performance 96kHz DSP for detailed sound

Technology highlights of Martin Audio DX4.0 is a 96kHz DSP digital signal processor. With a sampling rate twice as high as many conventional controllers (usually only 48kHz), the DX4.0 delivers detailed, smooth sound with better phase linearity.

This is especially important in professional performance environments or high-end karaoke, where the sound quality must maintain fidelity (hi-fi) even when the system is operating continuously at high power levels. The powerful DSP also allows DX4.0 to handle multiple EQ, delay, crossover, limiter algorithms at the same time while still ensuring stability.

VX Limiting and Multiband Limiting protect speakers

One of the features that makes DX4.0 highly appreciated is VX Limiting combined with Multiband Limiting. This is an advanced speaker protection mechanism, equivalent to the technology in active speakers, but integrated for passive speakers. Parameters are strictly managed at 3 levels:

• Peak Limiting: Prevent signal spikes and avoid burning speaker coils.
• RMS Limiting: Medium power control, protects speakers from high sustained signals.
• Excursion Control: Limits the displacement of the bass speaker diaphragm, avoiding mechanical damage.

Thanks to this comprehensive protection system, Martin Audio DX4.0 Controller Helps speakers operate safely, prolongs driver life and minimizes the risk of damage in high-power environments such as bars, clubs or commercial karaoke.

FIR Optimization for O-Line Systems

FIR Filter (Finite Impulse Response) is a technology that is Martin audio Exclusively integrated in DX4.0, specially optimized for O-Line speakers. Thanks to FIR, the device can adjust the linear phase, limit frequency overlap and improve sound uniformity.

In fact, when deploying multiple O-Line line array speaker clusters, FIR helps the audience sitting in the front or back of the room receive a clear, accurate sound experience. This is an important factor when designing sound systems for theaters, conference centers or professional live performances.

EQ, Delay and comprehensive filters

Each input and output channel of DX4.0 All are equipped with parametric EQ, Shelving EQ, All-pass filter and precise delay capability (maximum input 600ms, maximum output 200ms). Sound engineers can fine-tune vocals, instruments or time alignment between multiple speaker clusters and subwoofers.

Thanks to this, the sound reaching the audience is always synchronized, avoiding phase deviation or echo. This is an indispensable tool when deployed in spaces with complex architecture such as churches, multi-purpose halls or multi-room karaoke businesses.

Remote control via Ethernet and VU-NET software

Martin Audio DX4.0 Controller Compatible with VU-NET, Martin Audio's proprietary management software, allowing remote monitoring and control over an Ethernet network. Engineers can adjust EQ, test limiters, change routing, and manage configurations for multiple devices simultaneously.

In a large system, VU-NET saves significant operating time while ensuring precision in fine-tuning. This is especially useful when the system is installed in a conference center, performance stage or large-scale karaoke room chain.

Compact design, global power supply

Despite possessing a series of advanced technologies, the Martin Audio DX4.0 Controller still maintains a compact design with a standard 1U rack frame and a weight of only about 2,7 kg.

The device uses a global power supply of 100–240V, 50/60Hz, ensuring stable operation in all countries without the need for additional transformers. This makes the DX4.0 easy to integrate into mobile touring systems, as well as fixed installation in halls, theaters or high-end karaoke rooms.

Flexible, universal application of the Martin Audio DX4.0 Amplifiers

When investing in a professional controller, users want versatility to apply in many situations. Martin Audio DX4.0 Controller offers superior flexibility:

• Auditorium & Opera House: Ensures even signal for line array, accurate coverage of each area.
• High-class karaoke & tea room: EQ, delay and limiting help the microphone be clear, prevent feedback, and smooth vocals.
• Live performance stage: Integrated FIR filter and Dante™, clear signal, minimal delay.
• Conference & Event Center: Manage multiple rooms simultaneously via VU-NET, optimizing professional operations.
• Touring & Mobile Installation: Compact 1U design, lightweight, global power supply – convenient for touring.

Where to buy cheap, genuine, high-end Martin Audio DX4.0 Controller?

When you need to buy Martin Audio DX4.0 Controller genuine, rest assured because Phuc Truong Audio, we are committed to providing directly imported products, with full transparent warranty documents from the manufacturer. With many years of experience in the audio field, our team of technicians will directly advise, install and calibrate in detail to DX4.0 works best in every space, from high-end karaoke to auditoriums or performance stages.

At the showroom, you can also experience the product's sound processing capabilities before making a decision, to ensure you always choose the right device for your needs. Phuc Truong Audio – We not only sell products, but also accompany to bring standard and durable sound systems to customers.

Martin Audio DX4.0 Controller FAQ

Is the Martin Audio DX4.0 Controller compatible with home karaoke speakers?

Yes. The device works well with both karaoke speakers Traditional and line array speakers, delivering detailed, balanced sound.

Does Martin Audio DX4.0 need to be combined with karaoke digital echo?

Optional. Martin Audio DX4.0 has EQ, delay, limiter, but digital echo Can still be used to create echo and reverb effects for karaoke.

Can the Martin Audio DX4.0 Controller manage multiple karaoke rooms at the same time?

Yes. With 4 inputs, 8 outputs and VU-NET over Ethernet, Martin Audio DX4.0 can distribute and monitor signals to multiple rooms in business karaoke system.

When should you invest in Martin Audio DX4.0 instead of a regular digital karaoke amplifier?

When the system is large-scale (multi-room karaoke, hall, stage) or requires consistent, stable and durable sound quality.