Topping TP D2 TP-D2 Headphone Amplifier & USB DAC with 4 inputs operate on ADI1852JRS chip
D2 is both a headphone amplifer and USB DAC, this perfect combination allows you to connect the D2 to your PC to bypass the standard sound card that you may have and utilize the D2's awasome sound quality. This is an ideal setup for those that want to obtain much better sound quality out of their PC for their speakers of even headphones without needing to purchase an expensive high end sound card and install it into your PC.The D2 supports 4 types of input from line out, coaxial, optical and USB.This is a new generation multi-function extension product decoder, the decoder sets coaxial, fiber optic decoder, USB external sound card and headphone amplifier as one; in the small of the volume, can be used as multi-channel headphone amplifier input, multi- the first amplifier input, or input of the all-around multi-decoder to use, the use of very wide scope.D2 appearance concise fashion, the internal use of good design, the industry's leading chip-scale high fidelity sound quality HIFI device to your computer, digital players, DVD players and other products widely Lyrics value perfect sound quality.SpecificationsSize: about 106mm x 40mm x 171mm (excluding protrusions);about 115mm x 45mm x 205mm (including protrusions)G.W.: 1.2kgN.W.:650g(without power Adapter)Decoder part:Line out Output signal strength: 1.85VrmsDistortion: <0.0025%Frequency response :20-20000Hz  0.3dBOutput Impedance: 200OHeadphone Amplifier parts:Output power: 123mW 10% THD + N (32O)Distortion: <0.0028% @ 75mW (32O); <0.0027% @ 54mW (300O)Frequency response :20-20000Hz  0.3dBInput Sensitivity: 1.5V