Meet the ultimate portable headphone amplifier: the groundbreaking Cayin C9ii – a fully discrete, dual-timbre powerhouse that gives you six completely different sonic personalities in one luxurious chassis.

Choose between pure Class A warmth, efficient Class AB or brutal Hyper mode · switch instantly between classic Korg NuTube glow, modern tube character or razor-sharp Toshiba JFET solid-state · and fine-tune anode voltage for perfect headphone matching. The C9ii is the Swiss-army-knife every end-game portable rig has been waiting for.

• Amplifier Classes: Pure Class A · Class AB · Hyper Mode
• Timbre Circuits: Classic Tube (Korg NuTube 6P1) · Modern Tube · Solid-State (Toshiba discrete JFET)
• Power (4.4 mm balanced): Up to 4100 mW @ 32 Ω (Hyper) / 2600 mW (Class A)
• Power (6.35 mm SE): Up to 2100 mW @ 32 Ω (Hyper)
• Anode Voltage Switch: High / Low for optimal headphone synergy
• Gain Settings: Low / Mid / High
• Inputs: 3.5 mm SE · 4.4 mm balanced · 3.5 mm & 4.4 mm Line-In
• Outputs: 3.5 mm SE · 4.4 mm balanced · dual 3-pin XLR balanced
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• Battery: 4× 18650, up to 11 h (Class AB) / ~7 h (Class A)
• Build: CNC aerospace aluminium, premium leather case included