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For Sale Miro TDA1541 NOS , in Simultaneous Mode

Things you have for sale.
This is a I2S to simultaneous mode TDA1541 dac board designed by Miro.

Your own PSU, i2s source and two single op amps (i am not supplying the op amp) or your own IV stage is required to complete this DAC for it to sing.

The 14 decoupling caps for the TDA1541 chip are high quality RIFA MKP, with values as per Miro's recommended BOM. Decoupling caps for the psu are KEMET MKP, and electrolytics are mainly Nichicon FG for the DAC section and ELNA Cerafine for the op amp IV. Resistors used are good low noise, metal films from Nikohm, vishal and Dale. Logic chips are decoupled with high quality Kemet SMD x7r capacitors.

A blank DC protection board is also included in this sale. You will need to get your own components to populate the board if you intend to use this.

This dac is designed by Miro and more info can be found here :
https://www.diyaudio.com/community/...s-input-nos-r-2r.354078/page-268#post-7159210

Miro also designed the PSU for this dac (not included in this sale):
https://www.diyaudio.com/community/...s-input-nos-r-2r.354078/page-268#post-7159234
Please study the power supply requirement carefully if you intend to use your own psu design.

Important things to note :
1. If you intend to have no capacitor at the output, it is advisable to have a dc protection board (blank board is included in this sale) as explained in the post:
https://www.diyaudio.com/community/...s-input-nos-r-2r.354078/page-285#post-7187720
2. i have trimmed the TDA1541 offsets to be null and very stable. Any changes to the board, including inserting different op amp and different TDA1541 chip will require adjustments again. Please do check and do necessary adjustments by following the instructions by Miro. You will need to explore this on your own, with your i2s source connected.
3. All components, including the TDA1541A chip are new, which is only used for the testing of this DAC.

This kit is for sale at US$200 (Shipping with tracking is covered). Paypal FF only please. I am a responsible seller and I pack my item very securely and ship fast.
 
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  • Like
Reactions: tonimxp
interesting board....It is a pitty that Miro used single op-Amps in this design. Sound will be much better and we have more chip options if this board was a dual-opamp design output. Half of opAmp for LPF filter and other half of opamp for unitygain drive stage per ch.
 
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Reactions: acccruz
One of the reason why i like Miro's boards is that it allows getting it to work with simplicity as a good start and then follow on adventures with the various add-ons. eg. can bypass shift registers and use appropriate sources , the dual - single opamp adaptors, passive IV opamp adaptor etc. Gives me the Choose Your Own Adventures feel..😆
 
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