The SMSL VMV A1 PRO represents a significant leap in integrated amplifier design, blending state-of-the-art components with a compact, high-performance architecture. At its core is a next-generation gallium nitride (GaN) transistor platform that brings exceptional speed, efficiency, and sonic precision, setting a new benchmark for amplification in both stereo and mono configurations.
Revolutionary GaN Technology for Superior Audio Fidelity
Unlike traditional silicon-based transistors, GaN FETs offer dramatically faster switching speeds and greater energy efficiency. The SMSL VMV A1 PRO leverages this advantage with a switching frequency of up to 1 MHz—far surpassing the typical 300–500 kHz range found in conventional Class D amplifiers. This ultra-high frequency operation reduces phase distortion, minimizes switching noise, and ensures a remarkably transparent, dynamic, and low-distortion audio output.
In practical terms, this translates to crystal-clear resolution, an enhanced transient response, and an overall sense of sonic realism that remains stable even under heavy loads.
Power and Versatility in a Modular Format
Designed for both stereo and mono operation, the A1 PRO adapts easily to a wide variety of system configurations. In stereo mode, it delivers 160 watts per channel into 4 ohms, or 85 watts per channel into 8 ohms. When bridged to mono, it transforms into a powerful monoblock capable of up to 400 watts into 4 ohms or 250 watts into 8 ohms—ideal for high-demand applications like bi-amping or driving large floorstanding speakers.
This flexibility makes the A1 PRO a compelling choice for audiophiles seeking scalable performance, whether as part of a minimalist 2-channel setup or integrated into a more complex, multi-channel home audio system.
Precision Power Management and Thermal Efficiency
A custom-engineered high-efficiency switching power supply underpins the amplifier’s operation, ensuring rapid current delivery with low noise and minimal electromagnetic interference. Intelligent protection circuitry guards against thermal overload and current surges, maintaining stable performance even during prolonged high-output sessions.
Despite its compact footprint, the A1 PRO runs impressively cool—an attribute directly linked to the thermal efficiency of its GaN-based topology and careful internal layout.
Refined Build and Audiophile-Grade Components
Encased in a sleek, CNC-machined aluminum chassis, the amplifier strikes a balance between aesthetic minimalism and robust durability. Premium gold-plated speaker terminals offer corrosion resistance and superior conductivity, while the inclusion of the PGA2311 volume control chip—renowned for its low-noise, high-precision analog signal handling—further elevates the unit’s sonic performance and user experience.
The front panel offers an uncluttered interface, while rear-panel connections include both RCA stereo and XLR mono inputs, providing excellent system compatibility across a range of source components.
Whether you’re building a compact reference-grade stereo system or a high-power multi-amp array, the SMSL VMV A1 PRO delivers the performance, flexibility, and technical refinement to meet your needs. It’s a testament to how far Class D amplification has evolved—especially when powered by GaN technology—and an excellent choice for discerning listeners who value both innovation and execution.
Technical Specifications
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Amplifier Type: Integrated, GaN-based Class D
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Transistors: Infineon GaN FETs
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Inputs: RCA (stereo), XLR (mono)
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Outputs: Gold-plated speaker terminals
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THD+N: 0.003%
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Signal-to-Noise Ratio: 109 dB
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Dynamic Range: 111 dB
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Channel Separation: 75 dB
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Input Sensitivity: 680 mV / 22 kΩ (stereo), 2100 mV / 22 kΩ (mono)
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Output Power:
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2 × 160 W @ 4 Ω
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2 × 85 W @ 8 Ω
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1 × 400 W @ 4 Ω (mono)
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1 × 250 W @ 8 Ω (mono)
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Volume Control: PGA2311 analog chip
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Power Supply: 100–240 VAC
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Power Consumption: <0.5 W (standby), 40 W (operational)
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Dimensions: 210 × 201.6 × 47.6 mm
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Weight: 1.56 kg
