The Denon DAP-2500A is a high-end digital audio player designed for audiophiles who demand the best possible sound quality from their portable devices. Some key features of the DAP-2500A include:1. High-resolution audio playback up to DSD256 and 32-bit/768kHz PCM via USB DAC function and Wi-Fi, Ethernet, and USB inputs2. ESS ES9028Pro DAC, a high-performance DAC chip that delivers precise and dynamic sound reproduction3. AKM AK4991EQ operational amplifier, which provides exceptional low-noise performance and high signal-to-noise ratio4. TI Burr-Brown OP177, a stereo operational amplifier that offers exceptional transient response and low distortion5. Balanced XLR and single-ended RCA outputs, both using Denon's proprietary circuitry for optimal sound quality6. A large, 5-inch, high-resolution touch screen display that makes it easy to navigate and control the player7. aptX HD, a high-resolution Bluetooth audio coding technology that provides CD-quality sound wirelessly8. Versatile connectivity options, including Wi-Fi, Ethernet, USB A and B, and an SD card slot. Overall, the Denon DAP-2500A is a top-of-the-line digital audio player that combines advanced technology, quality components, and exemplary design to deliver excellent sound quality and a premium listening experience.