gdwallasign
100+ Head-Fier
THE J2 A NEW DESIGN ESS Here we come! Here at Geshelli, we like to find the positive light in an adverse situation. Ours is the absolutely beautiful sounding ESS Sabre series DAC chips.
We went through many iterations of prototypes using the different models and brands and found the ES9026PRO worked best for our design requirements. We chose the PRO series because of the 4x2 current based configuration. This means, you can tie four independent channels together as one therefore lowering noise and distortion levels.
We also chose to run the DAC analog output in current mode.
For our current to voltage conversion we chose the Texas Instruments OPA1656 opamp chips. Like the original JNOG, we are running three independent opamps, which give you the ability to run the XLR (L/R) at the same time as the RCA outputs.
The J2 includes four SPDIF interfaces (two Coaxial, two Toslink). These SPDIF connections are routed through a Texas Instruments DIX9211 digital audio receiver. This provides a 216khz/24bit capable digital signal. We also kept with the optional Amanero USB Module which allows the user to stream 32bit 384khz PCM signal or bit perfect DSD512. In our opinion, this is the best USB module on the market.
Lastly, for a bit of fun, we incorporated a tricolor LED that can display several colors along with pulse modes and a multicolor mode all controllable at a touch of a button.
We went through many iterations of prototypes using the different models and brands and found the ES9026PRO worked best for our design requirements. We chose the PRO series because of the 4x2 current based configuration. This means, you can tie four independent channels together as one therefore lowering noise and distortion levels.
We also chose to run the DAC analog output in current mode.
For our current to voltage conversion we chose the Texas Instruments OPA1656 opamp chips. Like the original JNOG, we are running three independent opamps, which give you the ability to run the XLR (L/R) at the same time as the RCA outputs.
The J2 includes four SPDIF interfaces (two Coaxial, two Toslink). These SPDIF connections are routed through a Texas Instruments DIX9211 digital audio receiver. This provides a 216khz/24bit capable digital signal. We also kept with the optional Amanero USB Module which allows the user to stream 32bit 384khz PCM signal or bit perfect DSD512. In our opinion, this is the best USB module on the market.
Lastly, for a bit of fun, we incorporated a tricolor LED that can display several colors along with pulse modes and a multicolor mode all controllable at a touch of a button.
