PCI-E DAC WITH XAMP HEADPHONE BI-AMPAND AUDIO CONTROL MODULE The all new Sound Blaster AE-7 delivers pure and pristine audio quality with the ESS SABRE-class 9018 DAC, which delivers 127 dB DNR & THD of 0.0001% (-120 dB), 32-bit / 384 kHz PCM plus DSD64 playback, and our award-winning Xamp a fully discrete headphone bi-amplifier which amplifies each audio channel individually to deliver incredible audio.Hardware aside, the internal sound card also integrates a range of audio enhancement technologies, namely the Sound Blaster Acoustic Engine, Dolby Digital Live, and DTS Connect encoding to bring users an overall enhanced experience and immersive surround sound.Achieving incredible audio quality has never been this easy. AE-7s Audio Control Module goes hand in hand with the sound card, allowing users to take full control of their audio playback directly with the volume control knob as well as 1/4 and 1/8 connectors for microphones and headphones.