SALE OF THIS ITEM IS WITHDRAWN
Miro USB interface stack PCM1704 DAC board for sale.
A pair of PCM1704 with one white dot => J graded chips on the board, and these are very difficult to source these days. These are recycled chips from a reliable seller, removed with proper care. They are not bought from random sellers in Ali or ebay. They work properly and nicely.
What you need to provide :
1. Chassis, wires, connectors etc
2. You will need to give it PSU with rails +/-5V (Analog) , +/-5V (Digital) and +/-10~12V (IV Op amp supply)
3. Compatible USB-I2S interface board that can be stacked on the DAC board, which are not offer in this sales. The two such devices are :
http://jlsounds.com/i2soverusbFIO.html
and
[IMG alt="eclipsevl"]https://www.diyaudio.com/community/data/avatars/s/104/104467.jpg?1709846720[/IMG]
Hello DiyAudio community,
TL;DR: This is a USB transport for audio output (up to 8ch) and input (2ch for now) and user device control (e.g., DSP management) from PC (MacOS/Linux/Windows) thru I2C/GPIO. Including bootloader for remote firmware update, flexible device configuration, HID interface, multiple audio output options, integration with SigmaStudio (simultanious audio playback and ADAU DSP configuration). Compact module available in USB-C and USB-B versions.
So, the story started when I needed a USB transport for audio output and another channel for device control, such as for...
Board fully populated with good quality caps eg. Nichicon KZ and FG, Wima Mkp, Panasonic acrylic caps, Amtrans AMCH copper foil etc
The IV Stage has a pair of AD811 op amp with heatsink mounted. Design is posted by Grunf, and discussed here:
@
2023-01-11 6:54 am
First, let me introduce my DAC, some have already seen it, but for those who haven't, it's a classic old-school DAC with DIR9001 as a digital receiver, PMD100 digital filter and 6 PCM1702s, three in parallel for each channel. The output current of 3 PCM1702s is 7.2mAp-p max. The power supply is given the greatest care, the PCB itself with DIR9001 has three ADP7118 regulators and they are the only IC reg. in the DAC. Other regulators, two +5V for PMD100, +/-5V for PCM1702 and the new +/-10V for AD811 are low noise shunt regulators, slightly improved, made according to Mr.Walt Jung's article...
Payment by PAYPAL FF only please.
DAC + shipping registered & tracking = xxx USD or preferably xxx SGD (Singapore dollars)
Again, please note that the USB-I2S interface board is not included in this sales.
Miro USB interface stack PCM1704 DAC board for sale.
A pair of PCM1704 with one white dot => J graded chips on the board, and these are very difficult to source these days. These are recycled chips from a reliable seller, removed with proper care. They are not bought from random sellers in Ali or ebay. They work properly and nicely.
What you need to provide :
1. Chassis, wires, connectors etc
2. You will need to give it PSU with rails +/-5V (Analog) , +/-5V (Digital) and +/-10~12V (IV Op amp supply)
3. Compatible USB-I2S interface board that can be stacked on the DAC board, which are not offer in this sales. The two such devices are :
http://jlsounds.com/i2soverusbFIO.html
and
[IMG alt="eclipsevl"]https://www.diyaudio.com/community/data/avatars/s/104/104467.jpg?1709846720[/IMG]
Thread 'USB UAC2+HID Multichannel input/output interface York'
2024-06-05 4:19 amHello DiyAudio community,
TL;DR: This is a USB transport for audio output (up to 8ch) and input (2ch for now) and user device control (e.g., DSP management) from PC (MacOS/Linux/Windows) thru I2C/GPIO. Including bootloader for remote firmware update, flexible device configuration, HID interface, multiple audio output options, integration with SigmaStudio (simultanious audio playback and ADAU DSP configuration). Compact module available in USB-C and USB-B versions.
So, the story started when I needed a USB transport for audio output and another channel for device control, such as for...
Board fully populated with good quality caps eg. Nichicon KZ and FG, Wima Mkp, Panasonic acrylic caps, Amtrans AMCH copper foil etc
The IV Stage has a pair of AD811 op amp with heatsink mounted. Design is posted by Grunf, and discussed here:
@
2023-01-11 6:54 am
First, let me introduce my DAC, some have already seen it, but for those who haven't, it's a classic old-school DAC with DIR9001 as a digital receiver, PMD100 digital filter and 6 PCM1702s, three in parallel for each channel. The output current of 3 PCM1702s is 7.2mAp-p max. The power supply is given the greatest care, the PCB itself with DIR9001 has three ADP7118 regulators and they are the only IC reg. in the DAC. Other regulators, two +5V for PMD100, +/-5V for PCM1702 and the new +/-10V for AD811 are low noise shunt regulators, slightly improved, made according to Mr.Walt Jung's article...
- @grunf
- Replies: 297
- Forum: Digital Line Level
Payment by PAYPAL FF only please.
DAC + shipping registered & tracking = xxx USD or preferably xxx SGD (Singapore dollars)
Again, please note that the USB-I2S interface board is not included in this sales.
Last edited:
Resistors around the IV op amp AD811 are vishay tantalum types, as recommended by the designer Grunf.
Overview pics of what you will get
Overview pics of what you will get