Given how affordable the C-7030 is, build quality is exceptional. A 1/16 (1.6 mm)-thick flat chassis base helps reduce unwanted vibrations, while the sleek aluminum front panel provides an elegant finish. 2 Digital Audio Outputs (Optical and Coaxial). VLSC for Pulse Noise Reduction High Quality 192 kHz/24-Bit DAC Custom Designed Transformers Solid Aluminum Front panel Differential Headphone Amp Circuitry.