Matrix Audio MA-1 Flagship Power Amplifier

The Matrix Audio MA-1 is the definitive statement in amplification, a flagship power amplifier that serves as the muscular, yet elegant, backbone for a reference-level audio system. It is born from a philosophy that balances immense power with delicate finesse, engineered to be the perfect counterpart to the MS-1 streamer and MP-1 preamplifier. The MA-1 is a true dual-mono design, featuring a massive, isolated power supply and a multi-triode parallel push-pull output stage. Capable of operating in Stereo, bridged Mono, or dual Mono modes, it offers unparalleled flexibility and the sheer power to drive any loudspeaker with absolute authority, revealing the full emotional impact and dynamic scale of the music.

Key Features:

• Massive Power Output: Delivers a formidable 250W per channel into 8Ω in Stereo mode, and up to 900W into 4Ω in bridged Mono mode.
• Multi-Triode Parallel Push-Pull Design: Employs 10 high-power transistors per channel in a high-bias state to reduce output impedance and provide effortless current delivery.
• True Dual-Mono Architecture: Features two independent 1250VA transformers and a massive 190,000µF capacitor bank, ensuring complete channel separation.
• Three Versatile Operating Modes: Configurable for standard Stereo, high-power bridged Mono, or ultimate-purity dual Mono operation for bi-wiring applications.
• Innovative H-Shaped Chassis: A unique, CNC-machined H-shaped structure provides extreme rigidity, component isolation, and a balanced, symmetrical layout.
• Adjustable Gain: Two selectable gain levels (+24dB and +30dB) allow for perfect system matching with a wide variety of preamplifiers and speakers.

Effortless Current, Exquisite Control

To achieve its goal of driving any loudspeaker with absolute ease, the MA-1 utilizes a formidable output stage. Each channel employs ten high-power ONSEMI transistors arranged in a parallel push-pull configuration. This multi-triode design operates in a high-bias state, which dramatically lowers the output impedance and provides an immense reserve of current. This allows the MA-1 to maintain an iron grip on the speaker drivers, delivering lightning-fast transients and deep, textured bass while preserving the subtle micro-details that bring music to life.

A Reservoir of Surging Power

The foundation of the MA-1’s performance is its colossal, dual-mono power supply. Two independent, oversized transformers provide a total of 1250VA of power, with separate windings for the left and right channels. This raw power is smoothed by a massive capacitor bank totaling 190,000µF, composed of multiple smaller capacitors connected in parallel. This design offers a significantly lower equivalent internal resistance (ESR) than a single large capacitor, ensuring that the amplifier can respond instantaneously to the most demanding musical peaks without strain or compression.

Unparalleled System Flexibility

The MA-1 is not a single amplifier, but three distinct amplifiers in one. In Stereo Mode, it functions as a classic, high-performance two-channel amplifier. In Bridged Mode, two MA-1 units work together to deliver immense power for speakers with demanding power requirements. In Mono Mode, two amplifiers are used to drive the left and right channels independently, offering the ultimate in channel separation and providing an ideal solution for high-end speakers that support bi-wiring or bi-amping. This incredible versatility ensures the MA-1 can adapt and excel in any system configuration.

The Art of Mechanical Grounding

The MA-1 introduces the innovative H-shaped chassis, a core element of the M-series design language. A 20mm thick, CNC-machined aluminum plate forms the central beam of the structure, acting as a mechanically grounded core for the entire amplifier. All components are mounted to this central beam, creating isolated cavities that shield different circuit modules from each other. The left and right channel circuits are arranged symmetrically on either side of the beam, ensuring a perfectly balanced layout that minimizes interference and provides a foundation of unshakable stability.

Silent, Intelligent Cooling

Managing the thermal output of a high-bias amplifier is critical. The MA-1 employs an intelligent, silent cooling system. Two sensors continuously monitor the heatsink temperatures. When a preset value is exceeded, an ultra-quiet 7.4" fan automatically activates, dynamically adjusting its speed based on the thermal load. The fan is housed within an isolated duct, ensuring no electronic components are in the airflow path. This prevents dust accumulation and guarantees that the cooling system is virtually inaudible, even during quiet passages or at low listening volumes.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications