Using one of these on the optical output of a squeezebox 3. It produces a substantial uplift in music quality . Finding far more detail can be heard with the placement of instruments more acurate within the sound stage. The sound now leaves the speaker boundaries with a nice wide soundstage. The uplift in sound quality defies the modest price for the device.
System using seperate mid to high end hifi system with turntable and CD player to compare with.
Cheap and cheerful SPDIF DAC that improves on the default sound quality of my Sony TV. In comparison, it lowers the noise floor and cleans up the sound. No clipping that I heard in my model (as per the review by Scott O). Great value.
Simply amazing product, wide separation, deep, and detailed. While playing symphony and opera, space presented deep and nice. All my digital music burned in FLAC format and played even better with this tiny optical dac. Love it and highly recommended.
The DAC is flawlessly neutral, clear, crisp and clean, just as it should.
My full review can be found here: http://www.head-fi.org/products/hifime-spdif-optical-9018-dac/reviews/16096