iBasso AMP14, NuTube Amplifier Module: For DX300 and DX320 DAP 4.4mm Balanced Tube AMP (AMP 14)
SUPERIOR SOUND: Improve your audio quality and listening experience with iBasso's AMP14 balanced audio amp module for the DX300 and DX320. With a 4.4mm balanced output, a true balanced line out, and KORG Nutubes, the AMP14 offers premium sound quality.
HAND-MATCHED PREMIUM AUDIO PLAYER: Each AMP14 is tested and matched with an AP audio analyzer with 3 multi-turn potentiometers on the AMP14 board, which are manually calibrated and matched by engineers to reach the optimal performance of the Nutube.
TUBE AMPLIFIER TECHNOLOGY: Provided by KORG and Noritake, the 6th Gen Nutube operates like a triode vacuum tube, creating the rich overtones that you know and love while also offering substantial power-saving abilities and other quality improvements.
TRUE BALANCED OUTPUT: The AMP14 utilizes Nutube 6P1 as a voltage amplifier and a JFET differential converter to realize the L-, L+, R+, R- differential output. It has 2 JRC volume-control chips to form 4 total channels for true balanced volume control.
IMPROVED EXPERIENCE: AMP14 is designed to have a low noise floor with less WiFi interference, which brings a better online streaming experience. The tube microphonic effect is also well controlled for overall higher-quality sound.