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Manley Laboratories Neo-Classic 300B Pre Amplifier Current model retailing for 14k. Classic David Manley design which has been in production and revised since the 90's. Here we have the latest revision in fantastic condition complete with original packaging and original valves. Preamp is pictured with NOS Ken Rad VT229s which can be included for an extra $200. It's got a decent headphone section but I've never tried it. Headphones are for dorks. Manley Neo-Classic 300B Preamplifier RC Manley Labs 300B Preamplifier: The Pinnacle of Tube Audio Excellence The Manley Labs 300B Preamplifier is
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Manley Laboratories emerged in the late 1980s in Chino, California, as a collaboration between EveAnna Manley and her then-husband, David Manley, founder of Vacuum Tube Logic (VTL). Their initial offerings were high-fidelity vacuum tube amplifiers and preamplifiers, hand-built at VTL's facility. By 1989, the brand expanded into professional audio with the Reference 60dB Microphone Preamplifier, followed by iconic equalizers and microphones debuted at the 1990 AES Show. In 1993, Manley became an independent entity, operating from its Chino factory until 2025, where custom transformers became a signature of its warm, detailed sound.
The company specializes in premium tube-based audio gear, spanning professional studio tools like the VOXBOX channel strip, Massive Passive EQ, Variable Mu compressor, and Reference microphones, alongside hi-fi amplifiers, preamplifiers, and equalizers. All products feature in-house design, assembly, and quality control, emphasizing analog purity over digital conveniences such as speakers, turntables, DACs, headphones, or cables.
Manley holds a commanding position in the high-end boutique market, revered by recording engineers and audiophiles for its rich tonal character, uncompromising build quality, and iconic styling. Trusted in top studios worldwide, its gear commands premium prices and a devoted following, recently transitioning under new ownership by audio veteran Dirk Ulrich in 2025 while upholding its American-made legacy.
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