The Leak TL/12 Plus 12 Watt Valve Mono Power Amplifiers
type: Product
description: The Leak TL/12 Plus is a classic British monophonic valve (tube) power amplifier from the late 1950s, the successor/updated version of the legendary original TL/12 “Point One” introduced in 1948. Harold Joseph Leak’s company built its reputation on ultra-low distortion (the famous “Point One” claim of 0.1% THD). The original TL/12 was widely regarded as one of Britain’s finest amplifiers of its era—praised for its triode-connected push-pull output stage, generous feedback design, and exceptional build quality. The Leak TL/12 Plus continued that lineage in a more production-oriented form while retaining the musical character that still attracts enthusiasts today. Key Specs & Design Power: Approximately 12–14 W into 8/16 Ω (monoblock). Output stage: Typically EL84 or similar pentodes (the original TL/12 used KT66s in triode connection); the Plus version simplified some aspects for cost and production while keeping the core 3-stage circuit topology that influenced later Leak designs (and even the Mullard 5-20). Feedback: Substantial negative feedback for low distortion and controlled damping. Construction: Heavy steel chassis, high-quality transformers, and (originally) paper/oil capacitors in critical positions. The Plus models often feature the distinctive orange-bronze fascia that many collectors love. Inputs: Designed to work with Leak preamps such as the Vari-Slope or Point One Plus, but compatible with other line-level sources (sensitivity is fairly high, so attenuation is sometimes needed with modern preamps). Compared with the rarer and more collectible original TL/12, the Plus is generally considered a practical evolution—some restorers and owners prefer its output transformers and power-supply approach for better bass and everyday reliability, though purists still chase the earlier “Point One” versions. Sound Owners and restorers consistently describe the TL/12 Plus as very musical—warm, detailed, and engaging rather than clinical. It delivers the classic Bri…
offers: Offer
  price: 30000.00
  price currency: ZAR
  availability: https://schema.org/InStock
  item condition: https://schema.org/NewCondition

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