The Soekris dam1021 has a serial port (J10). This serial port serves a number of purposes: 1) It is used for uploading firmware updates via the uManager prompt. 2) It is used for uploading filter values via a software utility … Continue reading
A few months back, a new project appeared on diyaudio.com. It was a DIY R-2R ladder DAC. Its creator, Soren, was clear from the beginning that it was to be a commercial product and if there was enough demand it … Continue reading
The DAM1021 originally came with FPGA firmware 0.8. Since then Soren has released a new version of the firmware, Rev 0.9. In order to upload it to the DAC one must connect the DAC to a computer using either a … Continue reading
The UPS guy just dropped off my brand new Soekris R-2R DAC: Also known by the very bland designation “DAM1021”. It is a sign-magnitude R-2R DAC (a.k.a. “ladder” DAC), meaning that it is quite different in operation than the regular … Continue reading
Back in September Allo.com had sent me their Piano 2.1 DAC along with their Kali reclocker, but I didn’t have any other DAC HATs to compare it to and it wouldn’t be fair to it to compare it to my … Continue reading
A couple of friends of mine that had already built Universal USB to I2S Interface Indicators asked me whether it could be modified to control the Soekris dam1021. It turns out that it could, with a little bit of work. The way … Continue reading
Why bother? If you are reading these lines, you are probably into DIY audio. A big part of DIY audio is building DACs. Since these last few years DACs have become fairly complex, sometimes they can benefit from being controlled by microcontrollers. I … Continue reading
A few years back I designed a little Arduino shield who’s main function was to provide electrical isolation between an Arduino and a DAC (specifically a TPA Buffalo III). The years have passed and my needs have changed with the introduction of the dam1021 DAC … Continue reading
This is the home page for the ArDAM1021 Project, an attempt at controlling the Soekris dam1021 Sign Magnitude R-2R DAC by an Arduino. First, a little background info. This is the Soekris dam1021 R-2R DAC: It supports three digital inputs … Continue reading
A while back a thread was started at avclub.gr discussing the design of a sampling rate indicator board for a JLSounds I2SoverUSB interface. As the conversation progressed, it became apparent that a more versatile solution would be preferrable. Such a … Continue reading