🧾 Overview 🎧 The HIFIMAN EF1000 is a powerhouse hybrid tube amplifier featuring a vacuum‑tube SRPP input stage and separate high‑current outputs for headphones and speakers. 🔊 It delivers pure Class A headphone power (20 W into 35 Ω) and robust speaker drive (50 W Class A or 110 W Class A/B into 8 Ω), marrying tube warmth with solid‑state muscle. 🏆 Engineered for demanding audiophiles, the EF1000 ensures ultra‑low distortion, wide bandwidth, and reference‑grade performance in a sleek desktop format. ✅ Key Features ✅ Vacuum‑tube SRPP input stage for rich, detailed preamplification ✅ Headphone amplifier: 20 W per channel into 35 Ω (pure Class A) ✅ Speaker amplifier: 50 W per channel into 8 Ω (pure Class A) or 110 W per channel into 8 Ω (Class A/B) ✅ Independent amplifier paths prevent crosstalk between headphone and speaker outputs ✅ Relay‑based volume attenuator for smooth, precise level control ✅ Robust aluminum chassis with ventilation and hot‑surface warnings ✅ High‑quality binding posts for speaker outputs and balanced XLR & RCA inputs 📊 Technical Specifications ▼ Parameter Value Input Stage Vacuum‑tube SRPP circuit Headphone Output 20 W per channel into 35 Ω (pure Class A) Speaker Output (Class A) 50 W per channel into 8 Ω Speaker Output (Class A/B) 110 W per channel into 8 Ω SNR (A‑weighted) 108 dB THD 0.15 % Dimensions 460 × 280 × 170 mm (Main Unit) Weight 13.45 kg (Main Unit) 📦 What’s in the Box 📦 EF1000 hybrid tube headphone & speaker amplifier 🔌 External DC power supply unit (12‑pin & 7‑pin cables) 📜 Quick‑start user guide & safety instructions 📜 Warranty card 🔄 Compatibility ✔ Optimized for electrostatic and dynamic headphones (35 Ω and up); drives 8 Ω speakers in pure Class A or high‑power Class A/B modes; accepts balanced XLR, RCA, CD, DAC, and AUX sources. 📦✈️ Shipping & Returns 📦 Insured worldwide delivery 🔄 14‑day return policy 🛡️ 3‑year HIFIMAN warranty (first-year free repair & shipping; years 2–3 free repair) 📝 Reviews 💬 “Be the first to leave a review – share your experience and help others!”
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