aune X7s Pro Class-A Headphone Amplifier with Balanced XLR Out 6.35mm Headphone Out/RCA Preamp Out Line Out/RCA Line in, 3 Gain Levels, for Headphones/Earphones/IEMs/Active Speakers/Power Amps

[Feel the Beauty of Class-A] A Class-A amps output BJTs are always conducting whether theres an input signal or not, and have the currents equal to the AC peak. The open-loop distortion is extremely low. Therefore, class-A is considered as the ideal-sounding kind of amp. The sound is lush and full of details. And since the transistors perform in their most linear way, the class-A amp barely has distortion. The listening experience is excellent
Single-Ended & Balanced Headphone Output - The X7s Pro has headphone output of both single-ended 6.35 mm and balanced 4-pin XLR. Two different tastes
3 Gain Levels - 3 gain levels to select from. Friendly to all kinds of headphones and earphones/IEMs. Theres always one for you
Powerful & Compact - 8 pieces of BJT, 4 independent amp circuits, positive and negative power supply... The X7s Pro aims to bring out the full potential of your headphones. Yet its just slightly bigger than a CD, and can be placed in various scenarios like your bedroom/study/office/reading room/computer room. It also has preamp output, supporting connection with active speakers and power amp. With the X7s Pro, the HiFi system building is easy
High Spec & Aesthetic Tuning - The actual measurements of frequency response (20~80 kHz) reaches ±0.3 dB, and THD+N reaches 0.0002%. Broad soundstage, dark background, abundant details. The tuning is based on real instrument sounds and music pieces referencing, leading to the sound signature that is natural and full of musicality