Feature: 1. High-performance Tube Headphone Amplifier: The xDuoo TA-26S, features 6N8P electronic tubes for front-stage amplification and 6N5P tubes for power amplification, bringing great sound quality 2. AUX Input: Connect your decoding headphone amplifier, pure decoding device, or player to the TA-26S using the dual RCA input interface, allowing you to enjoy audio from various devices 3. Amplify Your Speakers: The AUX OUT dual RCA interface allows you to use the TA-26S as a preamplifier for power amplifiers and speakers, enhancing your overall audio experience 4. Wide Compatibility: Equipped with 4.4mm and 6.35mm headphone interfaces (3.5mm to 6.35mm adapter included), making it compatible with headphones ranging from 60Ω to 600Ω impedance 5. Exceptional Performance: Adopts the E-type transformer with low noise and low magnetic leakage, which not only exerts its maximum performance but also greatly reduces the weight of the machine, suitable for home or office use Specification: Power Supply: AC100~120VMaximum Output Power: 500mW (600/300Ω load)Frequency Response: 10Hz~30KHz (±0.5dB)Gain: +16dBDistortion Degree: 0.09% (1KHz)SNR: 110dBApplicable Headphone Impedance: 60Ω~600ΩItem Size: Approx. 253*116*165mm/9.96*4.56*6.49inItem Weight: Approx. 3.9kg/8.6lbPackage Size: Approx. 32.8*27.3*21cm/12.91*10.74*8.26inPackage Weight: Approx. 4.85kg/10.69lb Package List: 1 * Tube Amplifier1 * Power Cable1 * 3.5mm to 6.35mm Adapter1 * User Manual