Ditto here. Anxiously awaiting the PCBs as this looks like a wonderful (and safe!) project to undertake with my son.
Nice and a simple for someone who wants to get his/hers hands dirty and get started with a project 🙂
What was the reason to split output current sensing resistor, then
not split R7 into bootstrap and allow this current source be active?
Your output is cap coupled, not like a single unsplit current sense
here would have made a constant current behave any differently.
Also the split being slightly assymetric looks suspiciously like you
had at least tried an active version based upon split sensing, and
then abandoned without removing the unnecessary components.
In the interest of simplicity (if that is the only reason), why are we
having 4 non-identical resistors instead of one or two all the same?
not split R7 into bootstrap and allow this current source be active?
Your output is cap coupled, not like a single unsplit current sense
here would have made a constant current behave any differently.
Also the split being slightly assymetric looks suspiciously like you
had at least tried an active version based upon split sensing, and
then abandoned without removing the unnecessary components.
In the interest of simplicity (if that is the only reason), why are we
having 4 non-identical resistors instead of one or two all the same?
Gutted.
Please come over to Darwin, Australia and run your Amp Camp in my back garden.
I am, however - since I built my speakers, now going to build an amp. 🙂
Please come over to Darwin, Australia and run your Amp Camp in my back garden.
I am, however - since I built my speakers, now going to build an amp. 🙂
The kits with chassis' and power supplies are now available in the store.
Amp Camp Kit - Kits
check out this post for an important mod to get the best performance:
http://www.diyaudio.com/forums/pass-labs/215392-amp-camp-amp-aca-146.html#post3700469
Amp Camp Kit - Kits
check out this post for an important mod to get the best performance:
http://www.diyaudio.com/forums/pass-labs/215392-amp-camp-amp-aca-146.html#post3700469
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omg...
finished my amps yesterday, they have about 16hrs on them and I am really blown away. These little amps sound really good. I built them as designed no changes. I mean I'm all for tweaking and making them sound better but I think I'm just going to listen to them for a while. It's almost as if these little amps were the missing link in my system. Hard to believe. It really is as if I don't have speakers in the room anymore, just music, it's crazy. Thanks for such an awesome kit.
finished my amps yesterday, they have about 16hrs on them and I am really blown away. These little amps sound really good. I built them as designed no changes. I mean I'm all for tweaking and making them sound better but I think I'm just going to listen to them for a while. It's almost as if these little amps were the missing link in my system. Hard to believe. It really is as if I don't have speakers in the room anymore, just music, it's crazy. Thanks for such an awesome kit.
Is there an alternative for the 2SK170/LSK170 FET. these are not easy to find in UK and I am reluctant to buy from eBay.
You can get them from the store..
8 pieces of LSK170 ULTRA LOW NOISE SINGLE N-CHANNEL JFET - Parts
Gisle
8 pieces of LSK170 ULTRA LOW NOISE SINGLE N-CHANNEL JFET - Parts
Gisle
Passive preamp for Amp Camp Amp?
Can I safely (and musically) use my Creek OBH-12 passive preamp with my newly acquired Amp Camp Amps?
Speakers are ~94db, sources are CD/DVD, satellite receiver, Squeezebox and vinyl...
MTIA
Can I safely (and musically) use my Creek OBH-12 passive preamp with my newly acquired Amp Camp Amps?
Speakers are ~94db, sources are CD/DVD, satellite receiver, Squeezebox and vinyl...
MTIA
Bigfish - I think the current draw on a class A amp would make for very frequent charge cycles, and unless already extant in your system, the cost of batteries and charging system might be far more than the SMPS bricks with which the official kits are shipped.
The point of these kits is low cost and simplicity of build, and while I've only just received mine yesterday and only just inspected the parts, it certainly looks like a simple build.
The point of these kits is low cost and simplicity of build, and while I've only just received mine yesterday and only just inspected the parts, it certainly looks like a simple build.
I am a total newb to electronics. A while ago I was talking to another member and was convinced that I could probably handle building a Tubelab SSE amp from the board and instructions on the DIY Audio web site but I'm thinking the ACA may be the better starter kit to build ...especially now that complete kits are back in stock. Can anyone offer opinions? What is the sound quality of this amp? Like the SSE I'm also going to need a preamp too correct?
Here's a thread that might be a better place to get an answer:
http://www.diyaudio.com/forums/pass-labs/215392-amp-camp-amp-aca.html
http://www.diyaudio.com/forums/pass-labs/215392-amp-camp-amp-aca.html
hello
i'm newb too
but i'd like to discuss the design : why not put four same transistors instead of one ?
and upgrade the others componants's wattage accordingly? with the same design
then when listening at say 4 watts, each transistor give 1 watt and the distorsion remain low? it there good reasons for not trying so?
i'm newb too
but i'd like to discuss the design : why not put four same transistors instead of one ?
and upgrade the others componants's wattage accordingly? with the same design
then when listening at say 4 watts, each transistor give 1 watt and the distorsion remain low? it there good reasons for not trying so?
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