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Antique Sound Lab (ASL) was founded in Hong Kong by Joseph Lau and represents a global approach to electronics manufacturing. The company specializes in tube amplifiers for hi-fi audio applications rather than guitar amplifiers specifically. ASL uses Chinese manufacturing, incorporates Russian-made EL34 tubes, and distributes through Canada's Divergent Technologies. They maintain low costs by doing almost everything in-house, including sheet-metal work, powder-coating, laminating, and transformer winding. ASL gained recognition 20+ years ago with an 8-watt tube monoblock amplifier for $99, creating a minor sensation in the audio market. The company produces 36 amplifiers, 11 preamps, and various components, focusing on affordable yet high-performing tube amplifiers that offer a compelling entry point into vacuum tube audio.