Very high grade processed Teter DA Converter with very good sound characteristics. For comparison, the Dynavox DK201 with RRP 30 EUR (Stereo Test: outstanding) have been tested, but the sound differences are very significant. Whether SACD or DVD audio is worlds better when Oelbach. The volume is only slightly reduced compared to an analog source, the treble and bass are given dissolved differentiated and high again, it is downright acoustically "packed" (Source: BD player BDP-450K: TOP-instrument !!!). Conclusion: The price of about 60 EUR RRP is absolutely justified and offers tremendous value. DynaVox is good and priced very reasonably priced, but you have to make substantial concessions to the Oelbach sonically compared, but what comes only at a very high signal chain for wear, that differences should be able to hear only a high-quality stereo system ...