USB DAC headphone amplifier. The new DAC chip, the PCM5102, provides better linearity in the digital filter which reduces overall delay in the audio. The headphone amp stage is now being driven by the LMH6643 that provides more power and better transient response. Another bonus is the lowered noise floor from the improved low-pass bass boost filter switch. Its USB interface supports up to 96KHz/24Bit high resolution audio streams, and can output audio to headphones, line-out to an external amplifier, or digital coaxial output to an external DAC. Compact and tough build, with brushed aluminium shell and chassis is perfect for portable use. - Output power: 200 mW - Frequency response: 20 Hz - 20 kHz - Dimensions: 19 x 80 x 21 mm - Weight: 78 g