When approaching digital audio, approach it as you would a connoisseur of fine wine. At Stahl~Tek, we approach the A.B.C. in a similar way: as a finely grown and cared-for vintage. Our expectations are high, as yours should be. The A.B.C. streams bit perfect audio data up to 24-bit @ 192kHz, providing a signal clear, and true to its source. The A.B.C. will output true, 24-bit audio files and supports all these sample rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz.
Digital processes may represent a sound exactly. Just as a professional taster might select the exact vintage after careful inspection, so the computer will read, and re-read a disc as many times as it needs to, to ensure it has the “exact” sound. This process is more accurate than a CD player may achieve: the player will read through only once. It does not have the benefit, as the taster does, to go back and resample.
The A.B.C. is finely designed to work within your digital system. Your digital system will function together as parts of an instrument. Your A.B.C. is built to fit effortlessly into your system, becoming a “bridge” between your computer and your DAC.
My DAC shows the same output no matter the sample rate (for example, 44.1kHz is displayed as 192kHz).Your software may be upgrading (or downgrading) your source. For example, Windows Media Player will downgrade any source over 96 kHz. Another program, such as JRiver, may be set to upgrade a source that is below a certain sample rate. Software does through use of DSP, or Digital Signal Processing. You will need to refer to your software’s documentation.
How can I tell what my output frequency is in Windows?The Stahl~Tek custom A.B.C. driver comes with tools to measure your output frequency. To use these tools, do the following:
When connecting to my Mac via USB, once I connect my DAC or another audio device, the Stahl~Tek A.B.C. dissapears or fails to appear.
This is an issue resulting from Mac’s USB specifications. To resovle the issue, plug the A.B.C. into a different port on your Mac.
For more information, visit: http://support.apple.com/kb/HT4049.