The S-200 is Audio Research's most advanced solid-state stereo power amplifier, a pure Class A/B design built on a true dual-mono platform. Dual toroidal transformers feed fully balanced circuits, and the choice of bipolar output transistors reflects a deliberate engineering priority: purity, transparency, and dynamic agility over the softer presentation often associated with MOSFET designs. A muscular linear power supply ensures the amplifier maintains composure and authority even as impedance demands shift.
Housed in a beautifully machined aluminum chassis available in black or silver anodized finish, the S-200 nods to classic Audio Research design language from a sleeker, modern perspective. Custom-machined heat sinks and the absence of visible fasteners on the front and top panels contribute to a refined, understated presence. Power output meters on a solid black background provide a visual connection to the amplifier's operation, and like every Audio Research product, the S-200 is proofed by ear in the company's Minnesota facility before it leaves the factory.
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