Matrix Audio MA-1 Class AB Power Amplifier

Matrix Audio MA-1 Power Amplifier

The all-new M series marks a milestone for Matrix Audio as it advances towards traditional Hi-Fi systems. This series includes the MS-1 Music Streamer, the MP-1 Preamplifier and the MA-1 Power Amplifier, forming a complete flagship system of Matrix Audio that presents their deep understanding and love of 2 channel Hi-Fi audio. The M series is the first line-up to adopt the new "Matrix Design" language, serving as an introduction to the future evolution of Matrix Audio devices.

The MA-1 is Matrix Audio's first Class AB power amplifier. The power amplifier serves as the backbone of the entire audio system, requiring comprehensive performance that excels both in dynamic and nuanced scenarios. It should surge powerfully during intense moments and delicately reveal subtleties with finesse. The MA-1 is born for the MS-1 and MP-1, offering precise matching and tuning to ensure that the entire system delivers exceptional audio performance and operational experience.

Key Features:

• High Quality 2Ch Class-AB Power Amplifier
• 2 x 250W Per Channel @ 8 Ohms, 450W Per Channel @ 4 Ohms
• Dual Mono Design with Separate Left/Right Channel PCBs & Power Transformers
• Total Power Supply of 1250VA
• 14 Parallel-Connected 6,800µF Capacitors Per Channel (190,000µF Total)
• 10 ONSEMI High-Power Transistors Per Channel Operating at High Bias
• Push-Pull Amplification Circuitry
• XLR & RCA Inputs
• Supports Stereo Mode, Bridged Mode & Mono Mode Operation
• Adjustable Gain: Normal +30dB, with -6dB Attenuation Switch for +24dB
• H-Shaped Chassis Structure for Rigidity and Better Layout
• Trigger In & Out
• New "Matrix Design" language
• Elegant Industrial Design & Refined Build Quality

User Manual (PDF, 1.44MB)

Matrix Design

The MP-1 is Matrix Audio's first Class A preamplifier. It's industrial design showcases a new concept of simplicity. With hundreds of circular perforations of varying sizes and depths arranged in an array on the simple hexahedron, resembling rhythmic beats dancing and emerging on the surface.

"Evaluating audio products from the dimensions of 'listening' and 'looking' has always been our consistent philosophy. From concept to design, every step contains the love for music and the pursuit of beauty."

The Backbone of The System

The power amplifier serves as the backbone of the entire audio system, requiring comprehensive performance that excels both in dynamic and nuanced scenarios. It should surge powerfully during intense moments and delicately reveal subtleties with finesse.

The MA-1 is born for the MS-1 and MP-1, offering precise matching and tuning to ensure that the entire system delivers exceptional audio performance and operational experience.

With 250 watts of power @ ohms, and 450 watts @ 4 ohms, the MA-1 is built to impress. In-fact in Bridged mode the MA-1 can output 500 watts @ 8 ohms, and 900 watts @ 4 ohms.

Multi-triode In Parallel Push-pull Output

In order to reduce the output impedance, the team at Matrix Audio applied 10 ONSEMI high-power transistors in each channel to construct a push-pull amplification circuit, which is operating at a high bias current state. The static power consumption is up to 300W.

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Adjustable Gain

The amplifier has two gain levels. The normal gain is +30dB, which can be attenuated to +24dB via a switch on the rear of the amplifier. This allows the listener to setup the amplifier with different pre-amps and speakers depending on needs.

Surging Power

Independent transformers for the left and right channels enable a fully independent dual-channel design, with a total power supply of 1250VA. The main power is ±80V.

Each channel features 14 parallel-connected 6,800µF capacitors, forming the main power supply filtering capacitor matrix. The total capacity of capacitors for both channels reaches 190,000µF. Compared to a single capacitor with the same capacity, multiple capacitors in parallel features lower equivalent internal resistance, ensuring greater flexibility in handling large current outputs.

Craftsmanship

The H-shaped structure is a unique design created by Matrix Audio for the M Series products, born from two years of continuous optimisation and improvement considering various aspects such as mechanics relationship, circuit layout, and exterior appearance. The 20mm CNC aluminium plate become the support structure of the entire device after dozens of procedures, serving as the core of the H-shaped structure. All components are mounted on the aluminium plate, and the entire weight is supported by heavy-duty feet installed on the main beam, making it solid and stable. After the panels are installed, multiple isolated cavities are formed with the main beam. Different circuit modules are properly placed in each cavity, effectively reducing interference between circuit modules. The circuit modules for the left and right channels are symmetrically arranged on both sides, creating a balanced visual impression.

Silent Cooling

The MA-1 continuously samples the temperature with two sensors on the main heatsink, constantly monitoring the temperature of the heatsink. When the temperature exceeds the preset value, a 7.4" ultra-quiet fan runs automatically and adjusts the fan speed dynamically. You won't even notice the fan is working even when the device is at low volume or muted. The isolated duct design ensures that there are no electronic components inside the airflow path, preventing dust accumulation from long-term operation.

Elegant Industrial Design & Refined Build Quality

The ingenious industrial design is an indispensable part of the MA-1, flowing out of the brand-new 'Matrix Design' language from dots, lines and surfaces. Each component undergoes multiple delicate CNC machining and surface treatments, providing a exquisite and comfortable matte texture, allowing you to feel the unique craftsmanship in operation, displaying a distinctive elegant temperament.

"We persevere tirelessly, striving to make things more beautiful and the sound more captivating."

Pure & Clear

The Matrix Audio MA-1 Power Amplifier delivers a rich and exquisite sound, immersing you in its depths. It's not just an auditory pleasure but a heartfelt exchange. Every note, every chord tells a story, making you fall in love with the sound. Every detail of the M Series embodies Matrix Audio's pursuit of excellence. Everything you hear, see and touch is the final presentation by team Matrix Audio through continuous trial and fail, meticulous polishing, and careful calibration.