S.M.S.L PA-X High-Resolution Stereo Power Amplifier With Box & Remote [OPENBOX]

S.M.S.L PA-X High-Resolution Integrated Power Amplifier

The S.M.S.L PA-X represents a new generation of integrated cum power amplifiers, built around advanced Gallium Nitride (GaN) Class-D technology. Designed for discerning listeners, it offers a combination of clean, transparent, fast, and responsive sound with effortless control that places it among the most refined amplifiers in its class.

Condition: Ununsed and new. Its an open box unit. It will contain all documentation and packing

Sonic Character

• Clean & Transparent – The PA-X is engineered to vanish from the signal chain, preserving the integrity of recordings with lifelike clarity and natural tonal balance.

• Fast & Responsive – With exceptional transient accuracy, it captures the dynamics and micro-details of music, ensuring rhythm and timing remain intact.

• Effortless Power Delivery – Whether driving sensitive monitors or demanding floorstanders, the amplifier maintains composure and control across the spectrum.

Power & Modes

• Stereo Mode: Delivers 200 WPC (watts per channel) in stereo, providing ample headroom with authority and refinement.

• Mono Mode: In bridged configuration, outputs 500 W in mono, unlocking powerful control for large speakers or specialized setups.

Engineering & Design

• GaN Class-D Architecture – Incorporates Infineon GaN power transistors switching at 1 MHz for reduced distortion, enhanced linearity, and superior high-frequency performance.

• Measured Purity – Achieves ultra-low distortion (THD+N: 0.003%) with a wide 115 dB signal-to-noise ratio, ensuring a black background and expansive soundstage.

• Connectivity – Balanced XLR and unbalanced RCA inputs, plus a dedicated mono XLR, allow seamless integration with both preamps and digital front-ends.

• Build Quality – Gold-plated connectors, protection circuitry, and a minimalist form factor (222.5 × 51 × 250 mm, 2.57 kg) reflect its precision engineering.

Included

• Original Box & Remote Control – Preserved in its complete form for straightforward operation and audiophile presentation.

For the Purist Listener

The S.M.S.L PA-X Integrated Power Amplifier is not about coloration or exaggeration—it is about delivering music with honesty, speed, and resolution. Whether in 200 WPC stereo mode or 500 W mono mode, its ability to combine power with finesse makes it an ideal choice for audiophiles seeking transparency without compromise.

A power amplifier that lets the recording speak for itself—the S.M.S.L PA-X belongs at the heart of a serious listening system.