SB3 Digital Only ModsThe digital only mod for the SB3 is now listed on the BOLDER Cable website.
I am rather backed up on mods. I am taking appointments 4 weeks out.
I plan to spend the rest of today working on the new basic power supply. With any luck I should be able to post some pictures tonight.
FYI, for digital only mods in the SB3, all of the power to the digital buffer chip comes from a linear regular. This in turn gets it power from the main 5 volt input. None of the power comes from the internal switching power supply.
For the DAC chip, which is only used on the analog outputs, the digital section gets it's power from a linear regulator which in turn also receives the 5 volt main input power. None of this power comes from the internal switching supply. The analog power to the DAC chip DOES get power derived from the switcher. I can rewire this so the analog power DOES NOT come from the switcher, just like I do in the SB2.
I will have more on the analog mods at a later date.