Trying to cram everything in this case and the DAC for my optical out on my TV.
I guess I'll make a DAC first.
The toroid is a 750 VA 35V x2 unwound to 22 VDC, so it doesn't fit well.
Was trying to replace the torroid trans with this MD power supply in the pics.
Really try to get a case like this: https://liquidaudio.com.au/lm3886-gainclone-chip-amp-project-build/
It's an AMPPower case from Australia, I forget the exact model -- 5000 maybe
As you can tell I'm kind of lost. I even have some NILES LM3886 modules I am will to try, but the build quality seems worse.
Also have a LM3875 kit. I build the same Brian GT LM3875 kit 20 or so years ago and it sounded pretty good I thought.
Maybe I should just focus on the DAC first? I need a transformer and an IS2 board, no?
Should I get a smaller transformer for the LM3886 amp? OR go with the MD power supply? I don't know if it's as good or needs a separate switch.
Maybe I should just buy a DIY amp from some one with an optical input and DAC inside?
Also sorry my questions/statements might not make sense. Kind of all over the place lol
Link to DAC kit -- https://www.diyinhk.com/shop/audio-kits/68-768khz32bit-ak4490eq-dac-i2sdsd-input.html
I glued the torroid really well, if it matters.
I guess I'll make a DAC first.
The toroid is a 750 VA 35V x2 unwound to 22 VDC, so it doesn't fit well.
Was trying to replace the torroid trans with this MD power supply in the pics.
Really try to get a case like this: https://liquidaudio.com.au/lm3886-gainclone-chip-amp-project-build/
It's an AMPPower case from Australia, I forget the exact model -- 5000 maybe
As you can tell I'm kind of lost. I even have some NILES LM3886 modules I am will to try, but the build quality seems worse.
Also have a LM3875 kit. I build the same Brian GT LM3875 kit 20 or so years ago and it sounded pretty good I thought.
Maybe I should just focus on the DAC first? I need a transformer and an IS2 board, no?
Should I get a smaller transformer for the LM3886 amp? OR go with the MD power supply? I don't know if it's as good or needs a separate switch.
Maybe I should just buy a DIY amp from some one with an optical input and DAC inside?
Also sorry my questions/statements might not make sense. Kind of all over the place lol
Link to DAC kit -- https://www.diyinhk.com/shop/audio-kits/68-768khz32bit-ak4490eq-dac-i2sdsd-input.html
I glued the torroid really well, if it matters.
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750 VA is way overkill for a chip amp and huge size wise. Take a look at some of antek's trafos offerings in the 200 to 300 VA range, much smaller and easier to squeeze into a case.
160-200 VA is plenty for a stereo LM3886 amp.
Which part of the project you tackle first is entirely up to you. If you want everything powered by one power supply, I suggest tackling the power supply last. That way you know which voltages you're targeting when you design the power supply.
Tom
Which part of the project you tackle first is entirely up to you. If you want everything powered by one power supply, I suggest tackling the power supply last. That way you know which voltages you're targeting when you design the power supply.
Tom