Tube DAC fans, this Abbington Music Research DP-777 SE DAC is a fantastic addition to your rig. AMR loaded the DP-777 with a Gemini Digital Engine, which includes not one but two distinct chipsets: The High-Definition 32-Bit DAC – to produce the ultimate audio from HD recordings The Classic Multibit 16-Bit DAC – to harness the best audio from CDs These give the DP-777 the edge over the competition with sound that’s clean, crisp and without equal. The DP-777 also includes the following AMR exclusive components: Zero Jitter Mode – to eliminate distortion and jitter from your speakers Global Master Timing – which picks up 28 million frequencies and eliminates jitter at its source If you’re looking for pitch-perfect instrumentals and clear, natural vocals, then the DP-777 will strip away jitter and noise to unleash the real potential of your CD collection. Dont confuse this with the older DP-777. The SE is a dramatic improvement in resolution and lifelike sound quality. Ships with original box, manual and tubes.