@ragwo
I thought of buying used Sonos connect for 180$ to do the a/d.
Got into the specs of the puffin...10x
So basically you soldered the spdif rca yourself.
How did you pass from coaxial to opticl?
And if the puffin is not a overkill since you passing it for the phantom DAC ?
Thanks !
Overview
The Puffin preamp only has analog inputs and outputs. Some users have requested a digital output in order to use their own external DAC. This mod adds an RCA coaxial output with 48kHz 24-bit SPDIF which bypasses the Puffin's internal DAC. Note that due to PLL clock limitations, the Puffin's 96kHz sampling gets downsampled at the SPDIF port to 48kHz, but all other Puffin processing is done at 96kHz which alleviates any aliasing issues.
Summary
This is a pretty easy and straight-forward DIY mod for the Puffin to add a digital RCA coaxial output, suitable for connection to an external DAC. Soldering is required. It adds a new chassis mounted RCA connector to the rear of the Puffin's enclosure. This then connects two wires to a voltage divider made of two axial resistors soldered to the micro board header. Then a special version of the shipping firmware must be flashed to the micro. This new firmware permits switching between Analog and SPDIF outputs (only one output works at a time).
I thought of buying used Sonos connect for 180$ to do the a/d.
Got into the specs of the puffin...10x
So basically you soldered the spdif rca yourself.
How did you pass from coaxial to opticl?
And if the puffin is not a overkill since you passing it for the phantom DAC ?
Thanks !
Overview
The Puffin preamp only has analog inputs and outputs. Some users have requested a digital output in order to use their own external DAC. This mod adds an RCA coaxial output with 48kHz 24-bit SPDIF which bypasses the Puffin's internal DAC. Note that due to PLL clock limitations, the Puffin's 96kHz sampling gets downsampled at the SPDIF port to 48kHz, but all other Puffin processing is done at 96kHz which alleviates any aliasing issues.
Summary
This is a pretty easy and straight-forward DIY mod for the Puffin to add a digital RCA coaxial output, suitable for connection to an external DAC. Soldering is required. It adds a new chassis mounted RCA connector to the rear of the Puffin's enclosure. This then connects two wires to a voltage divider made of two axial resistors soldered to the micro board header. Then a special version of the shipping firmware must be flashed to the micro. This new firmware permits switching between Analog and SPDIF outputs (only one output works at a time).
