Something based on an LM3886 would work well, I think. You could scratch build, or dig up various Chinese Ebay boards, or consider the GT-101 option:
Akitika GT-101
Akitika GT-101
It's the easiest chip to work with, best chip amp I've heard. I'll post my layout of mine on my website if anyone is interested.
Hi Guys- thanks for your suggestionsI think I should stick with a manufactured board for this one. I don't have enough experience to build from scratch.
How would the LM1875 sound with my miniOnkens? Is there a parallel 1875 board anywhere. I haven't been able to find one.
cheers
in the family of the LM...I would stick to LM3875 from Peter Daniel. Check his site at Audiosector.com.
PS: Long time ago, that was my first DIY amplifier!
There's a whole family of them which I reckon sound the best out of any I've heard - I've listened to and am very impressed by TDA8561 and TDA8566 which internally look the same. For this application though rather than your 46dB gain version, I'd recommend the TDA1553CQ which is the same as yours but only 26dB gain. Many of them are obsolete though or headed that way fast as NXP has a new range beginning with 'TDF'.
Thanks, I'll take a look
Checked it out - saw the PCBs but no schematics. What opamps are you using? I so far haven't found an opamp which sounds as good as these chipamps so I'm using other members of the family to do opamp duty
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Thanks - curious why 46dB isn't enough and you need more gain from an opamp?
I use an opamp as a buffer so that the previous stage doesn't get overloaded, be it a cd player or preamp etc. and if you need to boost the gain you can.
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The input impedance is plenty high enough (above 20kohms) - I'm feeding my TDA8566 (same family as yours) direct from my DAC and its not giving any problems, rather its sounding awesome. As you're someone who appreciates the great sound of these chipamps, why not try bypassing the opamp and see if you like it better? NE5532 is a decent opamp but its not quite in the same class as the sound I'm getting from my TDA
The input impedance is plenty high enough (above 20kohms) - I'm feeding my TDA8566 (same family as yours) direct from my DAC and its not giving any problems, rather its sounding awesome. As you're someone who appreciates the great sound of these chipamps, why not try bypassing the opamp and see if you like it better? NE5532 is a decent opamp but its not quite in the same class as the sound I'm getting from my TDA
You know years ago before surround sound became popular I built my own system and I remember at the time that I had problems with the input source and being influenced by Jeff Macaulay I went this route. There are other little things I did along the way and incorporate them into my designs.
NE5532 is a decent opamp but its not quite in the same class as the sound I'm getting from my TDA
Agree with both of you. I found that I need the buffer, but NE5532 (or even better ones) will only ruin the sound quality of the chip amp. So a discrete, even a single transistor will do to me.
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