FiiO K19 Headphone Amplifier/DAC

🧾 Overview / Summary
The FiiO K19 is a flagship desktop DAC and headphone amplifier combining groundbreaking technology and sheer power. Featuring dual ES9039SPRO DACs, 8‑channel THX AAA 788+ amplifier, and 31‑band lossless PEQ, it delivers unmatched audio clarity, headroom, and customization — all in an elegant, shock‑proof unibody design with HDMI/ARC support.

✅ Key Features
✅ Dual ESS ES9039SPRO DACs with 132 dB DNR and −122 dB THD+N
✅ 8‑channel THX AAA 788+ amp delivering up to 8000 mW+8000 mW @32 Ω
✅ 31‑band high‑precision lossless PEQ with import/export presets
✅ Fully balanced architecture & global clock management
✅ HDMI input, output, and ARC for immersive audiovisual experiences
✅ Dual ultra‑low phase noise femtosecond crystal oscillators
✅ High‑definition 1.3" display, remote control & FIIO Control App support
✅ Ultra‑thin die‑cast unibody with advanced heat dissipation and shielding

📊 Technical Specifications
Parameter Specification
DAC Dual ESS ES9039SPRO (8‑channel)
Amp 8‑channel THX AAA 788+
Output Power (BAL) ≥8000 mW+8000 mW (32 Ω, Ultra high gain)
Output Power (SE) ≥2300 mW+2300 mW (32 Ω, Ultra high gain)
Frequency Response 20 Hz–80 kHz (attenuation < 1.1 dB)
SNR ≥128 dB (A‑weighted)
THD+N < 0.0002% (1 kHz/−6 dB@32 Ω)
Dimensions ~250×225×36.7 mm
Weight ~1800 g
Display 1.3" color LCD (240×240)
Bluetooth QCC5125 (SBC/AAC/aptX/aptX HD/LDAC)
USB Interface Type‑C ×3
Inputs USB, Coaxial, Optical, HDMI/ARC, Bluetooth
Outputs Headphone (3.5 mm, 4.4 mm), Pre‑out, Line‑out, Coaxial, Optical
Power Supply AC & optional DC (15 V/3 A), 40 W industrial PSU

📦 What’s in the Box
📦 FiiO K19 Desktop DAC & Amp
🔌 AC power cord
🔗 Type‑C → USB‑A adapter, USB2.0 cable, dual Type‑C cable
🎧 6.35 mm adapter, 3.5 mm audio cable
🪛 Screwdriver & screws
🪟 Vertical stand & headphone support
📖 Quick start guide & user manual
🎮 Remote control & XLR4 dust cover

🔄 Compatibility
✔ Compatible with headphones 16 Ω–600 Ω (balanced & SE)
✔ Works with desktop & portable DACs, receivers, PCs, game consoles, TVs (HDMI ARC)
✔ Supports Windows, macOS, Android, iOS via USB/Bluetooth
✔ Roon Ready, MQA full decoding, HDMI (up to 192 kHz/24bit)

📦✈️ Shipping & Returns
📦 Insured worldwide delivery
🔄 14‑day return policy
🛡️ 1‑year manufacturer warranty

📝 Reviews
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