SilverStone EB01-E Amplifier Specifications
The USB digital audio sent from a computer to the EB01-E will go through three internal signal processing blocks before being output to the destination device.
First, the USB audio data must be extracted from the USB frames and presented to the digital to analog converter with perfect timing. There are a number of methods to perform this extraction, but the most important objective is to prevent any interruption of the incoming audio data. The EB01–E uses the XMOS XS1 to decode the audio data asynchronously. Asynchronous extraction is considered to be the most reliable way to ensure that no audio data is corrupted due to small timing differences between the host PC and the USB destination.
The extracted data is then converted to an analog signal by the TI PCM1798 DAC chipset, which has excellent jitter tolerance to further reduce the possibility of timing errors.
The final audio output needs to be buffered and amplified for delivery to the destination. The op amps used in the EB01–E are the NE5532s, which have been the go-to choice for op-amps for over 35 years in professional and high end audio equipment.
The output impedance of the NE5532 op amps is less than 1 ohm, and they are rated to drive a 600 ohm load directly. SilverStone includes a RCA to mini adapter to allow headphones to be connected directly to the EB01-E audio output.