Thanks jacco - I'll find them with a bit more persistence. My electronic tech training dates back to the 60's so I'm a little rusty on all the capacitor types. I never followed it as a profession though - just a little hobby and joy of building things. I do remember what they do though. 
Shoot, there's probably some new types since then!
Shoot, there's probably some new types since then!
Next question then
Have you given it a fair listening trial... if so what do you think ?
You'll be wanting the opera preamp to go with that then!
The kit's available here on eBay and there's an absolutely fascinating thread here on the forum where Chris (the designer) discusses his design philosophy.
To whet your appetite, I've attached the circuit diagram below. Just for clarity, since it's not obvious on the schematic, the top and bottom opamps have their V- supply pins directly connected to their non-inverting inputs.
Very un-British, at this power level however i Think i favor Glen Kleinschmidt's Class A hybrid K10A, nice sanity check though.
=> http://www.diyaudio.com/forums/solid-state/119409-kleinschmidt-10a.html
In nomine veni sancte spiritus, i christen it the poor man's Array S-1.
(also has 32 output "devices" per channel)
(Opera as in singing frantically while sitting naked behind a solder iron)
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Build it.
Hello,
I have actually build the amplifier and it has a very nice sound.
Driving Cabasse Caravelle and working with Clearaudio Basic
from a Rega Planar III with a Denon DL-103 cardridge.
Difficult to say, play it against some transistor amps, a tube amp
(diy, from Walter Electronic, Mannheim, Germany) or a
commercial Naim. For me, I like to listen to her (amps are ladies)
frequently for krautrock where the tube does simply not match.
I documented the build on BARBERRICMAR - START in the English
part of the site. Please mail for questions. I am not an electronics pro.
For me, however one sees the project, its not only the final listening
experience, but also the recreation of building the devices.
As of now, I work on the preamplifier. I will post soon on the website
more about this one.
Regards,
Bernd
Hello,
I have actually build the amplifier and it has a very nice sound.
Driving Cabasse Caravelle and working with Clearaudio Basic
from a Rega Planar III with a Denon DL-103 cardridge.
Difficult to say, play it against some transistor amps, a tube amp
(diy, from Walter Electronic, Mannheim, Germany) or a
commercial Naim. For me, I like to listen to her (amps are ladies)
frequently for krautrock where the tube does simply not match.
I documented the build on BARBERRICMAR - START in the English
part of the site. Please mail for questions. I am not an electronics pro.
For me, however one sees the project, its not only the final listening
experience, but also the recreation of building the devices.
As of now, I work on the preamplifier. I will post soon on the website
more about this one.
Regards,
Bernd
Hi,
I built a headphone amp with 2 5532 per channel...i.e. 4 op amp circuits in parallel.
I am really not experienced with headphones, but I thought it sounded fantastic.
All harmonics were well below -90dB at 0dB 1kHz.
I would like to build amp, with many more 5532, for my altec lansing 604 speakers.
Anybody have PCBs or assembled boards or anything?
I would buy them. I am not great with making PCBs, but if layout was 1-sided I could also etch them myself.
It is a shame the Chinese did not, yet, start making these boards for 5 bucks each
I built a headphone amp with 2 5532 per channel...i.e. 4 op amp circuits in parallel.
I am really not experienced with headphones, but I thought it sounded fantastic.
All harmonics were well below -90dB at 0dB 1kHz.
I would like to build amp, with many more 5532, for my altec lansing 604 speakers.
Anybody have PCBs or assembled boards or anything?
I would buy them. I am not great with making PCBs, but if layout was 1-sided I could also etch them myself.
It is a shame the Chinese did not, yet, start making these boards for 5 bucks each
Thanks Douglas, but they are damn expensive
http://www.elektor.com/the-5532-opamplifier-2-amplifier-board-one-channelhanks Douglas, but they are damn expensive
As a Finn I am used to stuff being expensive, but paying like 160USD for 2 bare boards is almost too much.
Maybe we can design our own and order from some chinese pcb maker?
http://www.elektor.com/the-5532-opamplifier-2-amplifier-board-one-channelhanks Douglas, but they are damn expensive
As a Finn I am used to stuff being expensive, but paying like 160USD for 2 bare boards is almost too much.
Maybe we can design our own and order from some chinese pcb maker?
Found the layout:
http://www.elektor-magazine.com/ind...ileadmin/user_upload/2010/dolo/100124-PCB.pdf
But then I also found someone who was not so impressed by the amp:
http://www.diyaudio.com/forums/blogs/alexcp/1016-ne5532-power-amplifier.html
It is a very nice build though!
http://www.elektor-magazine.com/ind...ileadmin/user_upload/2010/dolo/100124-PCB.pdf
But then I also found someone who was not so impressed by the amp:
http://www.diyaudio.com/forums/blogs/alexcp/1016-ne5532-power-amplifier.html
It is a very nice build though!
Thanks Douglas, but they are damn expensive
So are the Altecs you want to drive... many more times than the cost of this amp I would think.
A purely subjective comment (which he admits it is) by someone who expresses a preference for hot, heavy and hugely inefficient class A offerings who then goes on to say that 'every non class A amp' has this trait.
If you have an open mind then build the amp and make your own opinion on the subjective quality
Thanks Douglas, but they are damn expensive
Maybe we can design our own and order from some chinese pcb maker?
I don't see why not. I get all my PCBs made in China these days, and they are really very good.
You'd have to do your own layout; I don't think a cut-n-paste copy of the Elektor layout would be a good idea. They might get upset.
A speaker amp with all 5532s is more of an amp designer's fun project anyway. It's a novel idea, but an awful lot of solder joints at the very least. And you can calculate for yourself how much current a total of 32 5532s will draw - I am fairly certain that a just one 5532 with a discrete AB buffer of similar quiescent current draw would yield very nice results, too.
nice!
I saw the elector article sometime back and thought about copying, or trying mu own version perhaps with different ICs. Since then o have been looking at multiple buffers BUF634 LME49600, or other specialised op.amps such as OPA445, OPA551.
I still like Self's approach though, and I'm almost certain I couldn't better it with the latter devices.
I would certainly like to see what emerges in this thread, once u have chance to catch up with the reading.
I saw the elector article sometime back and thought about copying, or trying mu own version perhaps with different ICs. Since then o have been looking at multiple buffers BUF634 LME49600, or other specialised op.amps such as OPA445, OPA551.
I still like Self's approach though, and I'm almost certain I couldn't better it with the latter devices.
I would certainly like to see what emerges in this thread, once u have chance to catch up with the reading.
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