Vintage Audio Innovations L1 Valve Preamplifier (Original Early Version)

RM1800.00

Vintage Audio Innovations L1 Valve Preamplifier (Original Early Version)

✨ Up for sale is a rare, highly collectible piece of British audio history: the original Audio Innovations L1 Valve Line Preamplifier. Designed during the golden era when Peter Qvortrup (later of Audio Note UK) and Erik Andersson steered the company, this early-version L1 is a legendary purist's dream.

✨ Unlike the later Series 200 mass-market units, this original L1 features a minimalist, ultra-short signal path circuit utilizing a single ECC82 dual-triode tube. It is celebrated for its breathtakingly warm, open midrange, expansive 3D staging, and incredible musicality that modern solid-state preamps simply cannot replicate.

✨ Key Features & Specs

- Circuit Design: Pure Class A valve line stage with zero/low negative feedback principles.

- Tube Complement: 1x ECC82 (Double Triode) — incredibly easy and affordable to tube-roll.

- Gain Matching: Features a built-in high/low gain selector switch to perfectly match high-output modern DACs or sensitive vintage power amplifiers.

- Hum Management: Built-in ground lift switch on the chassis to eliminate ground loop hum.

- Inputs/Outputs: Pure analog single-ended RCA inputs and dual outputs (perfect for bi-amping or subwoofers).

✨ Condition & History

- Cosmetic Condition: 8/10 — Very good vintage condition. faceplate is clean.

- Operational Condition: 100% working perfectly.

- Selector switches are crisp, volume tracking is smooth, and backgrounds are remarkably quiet for a vintage valve unit.

- Internal State: factory original stock components

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💬 Trade-ins may be considered. 欢迎洽谈以旧换新事宜。