WE91A 300B Clone

About the WE91A 300B Clone

The Tube Audio Lab WE91A 300B Clone is a meticulously crafted replica of the legendary Western Electric Model 91A amplifier, built based on Joe Roberts' schematic and custom-built by master builder Min Yang. It features a pure Class A single-ended triode design with 2x 300B output tubes, 2x 6C6 pentode driver tubes, and 2x 5R4 rectifier tubes. The amplifier delivers approximately 8-9 watts per channel, providing smooth dynamics, a wide soundstage, and exceptional audio quality especially when paired with high-efficiency speakers. It uses a Western Electric core transformer and high-quality components such as ASC oil-filled filter capacitors and Sprague Atoms Vitamin Q coupling capacitors. The amplifier is 100% point-to-point wired with no PCB, ensuring high fidelity and low noise performance. It is highly regarded among audiophiles for its sonic purity and build quality, and is considered a coveted and rare find in the preowned market. The amplifier weighs about 85 pounds and has a large footprint, reflecting its robust construction and vintage design heritage.