• High Performance Balanced Tube Headphone Amplifier
• Enjoy pure high quality analog flavor
• Suitable for professional multimedia equipments
• Balanced input and output
• Used but like New, fully functional with stock tubes
• Don't have original box

Spec. of xDuoo TA-20

• Anti-interference aluminum alloy shell
• Removable aluminum alloy tube guardrail
• Dual 12AU7 tube
• Class-A transistor expansion
• Customized hi-fi capacitor
• Professional volume IC
• Balanced input and output
• 2 sets of aux input interfaces
• Power supply: External electricity (AC100–240V)
• Output power: Phone: 2,000 mW (32 ohms); XLR: 2,000 mW (32 ohms)
• Frequency response: 10 Hz–100 kHz (+/- 1 dB)
• Gain: +18 dB
• Distortion: ≤ 0.01% (1 kHz, 32-ohm load)
• Signal-to-noise ratio: 115 dB
• Headphone impedance: 8–600 ohms
• Footprint: 5.8 x 8.3 in (14.8 x 21 cm)
• Weight: 3.4 lbs (1.55 kg)