I have ordered the parts for both a mini3 and a jisbos from AMB today. I'll build the mini3 so I'm guaranteed to have a working portable amp I'll do some experiments with the jisbos to learn about the circuit and use that knowledge to try and design my own circuit and PCBs

Do you have a link to a forum post or webpage that cover a jisbos with gain?

thanks. I already checked them out and found the same thing. They have good prices, if you're looking exactly for what they sell

I think I have decided on what I want to do. I like the 2ch jisbos design, and I'd like to add an opamp for the gain. Not because I think it's better, but because I'd finally get to use the opa627/637 I have lying around I'll start a thread on headwize when I've studied the schematics and...

Well, I decided to go ahead: I've ordered the CK7's from audiocubes. I hope they arrive soon

Thanks. I was leaning towards the CK7s as well. I think I'll order them later today. I'm looking for a shop that will ship them to the Netherlands at a reasonable total price (phones+shipping).

Hi, I'm going to buy a set of IEMs. I've brought my options back to these three, based upon information I found on the forum: The JVC HA-FX300B The audiotechnica CK7 And the sony EX85SL They range from $60 to $100. I don't have an opportunity to listen to them in advance, so...

Thanks for all the tips, those discrete amps look very nice. I'll study them and I'll post here when I know what I want to do.

oww, that's fast Could you give me a link to these amps? I'm a bit rusty, here on head-fi (shame on me )

Hi everyone! I'm back again after having built AMB's cavalli kan amplifier last year I want to build another amplifier. This time I'm looking for a portable design. I'm not looking for an amplifier that I can use "on the move", but one that I can take with me to work and use there. It...

It's the CK2-III I really wanted to build something, I haven't done anything with DIY audio in a long, long time. But I didn't want to design it myself and I also wanted a discrete amp. I found AMB's pages on the web and the threads on head-fi and headwize. Easy choice I re-used some...

Quote: Originally posted by aixer Doh..! Duracell now owns Energizer, No more bunny. Over here, in europe duracell also advertises with a bunny (well they did, when they actually advertised. I haven't seen an ad in a long long time) So, there is hope for you yet

It will stay here untill I need the space for something else.

Did some resizing, and uploaded the image to headfi. For the full image: copy paste to your address bar. tripod does not allow direct linking to files from another page. So if copy/pasting doesnt work: do it two times (the second time you will come from a tripod site, so it will show up. Or...

Could be, this is a very standard layout, directly from an application note from burr brown (doubling the output current with the opa2604). The hansen does something similar. I build this amp on a piece of protoboard. I will open a new topic on headwize, probably this week with some images of...