Device Type: Digital to Analog Converter
Digital Inputs: Asynchronous USB Audio 2.0: PCM Up to 384 kHz; DSD 64 Fs: 2.8224 MHz; 3.072 MHz, DSD 128 Fs: 5.6448 MHz; 6.144 MHz, DSD 256 Fs: 11.2896 MHz; 12.288 MHz (Requires OS X 10.9)
SPDIF Coaxial Input 1: PCM 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
SPDIF Optical Input 2: PCM 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
Output: Balanced (XLR), Unbalanced (RCA)
Dimensions (H x W x D): 2.2 inches X 6.5 inches X 9.25 inches
E22 DAC Features
- The e22 DAC is based on a single ES9018 Sabre32 reference DAC chip.
- Asynchronous USB 2.0 that supports PCM resolutions to 384 kHz and DSD256 in both OSX Mavericks and Windows. The DAC also offers 2 SPDIF outputs for connection to CD players or DACs for PCM playback.
- Data is provided from an FPGA core and is stored in the DAC FIFO memory buffer. The FPGA core makes sure that the buffer never becomes empty during playback. Data from the buffer is streamed to the DAC chip. The precision of the timing of the output stream is determined only by the DAC oscillators and is not degraded by the computer clocks or by delays caused by the USB interface.
- Galvanic isolation between the USB computer output and the DAC circuits reduces noise created by ground loops and other computer generated noise transmitted by the USB cable.
- A femtoclock capable of 0.082 ps (82fs) of DAC Master Clock jitter
- Both gold plated XLR Balanced outputs and heavy duty RCA single end outputs that can be used simultaneously.
- A high quality remote controlled volume control that functions in .5 dB steps that combines the best of digital and analog allowing one to connect the e22 directly to an amp. The volume control has a high SN Ratio with no loss of digital resolution. The e22 volume is controlled by the ES9018 DAC chip with the ESS Sabre chip actually performing the volume changes. It is independent from the Mac or Windows software volume control preserving the maximum possible signal to noise ratio. The volume control is bypassed at the 0 dB setting turning off any volume processing.
- An external SMPS power supply with 11 power cleaning stages within the DAC. These multiple power cleaning stages allow every circuit to be powered separately with its own stage of power regulation. This feature prevents one power stage from modulating another stage helping to eliminate one source of DAC jitter.
- A high quality headphone amplifier is provided with the e22 DAC.
- 12 VDC Trigger Output to control other devices.
- Custom ASIO drivers for not only Windows, but OSX Mavericks that allows a higher level of performance in both operating systems. exaSound claims to be the first to offer ASIO support on OS X.
- An Apple Remote Control is provided with the additional ability to re-program the DAC to work with most infrared remote controls using the Sony and NEC IR protocols.
- Accepts a classic type B USB output cable connector