[Jan Kristijan]

Hi guys!
Im new to this forum but I have been working on eletronics since I was 13, ok im 17 now so there isn't a lot of progress but i thought you guys would appreciate some good work! Here you can see my first amp in a Barkleys mints tin, this one was made for my mentor that needed something that can amplify a weak signal from radiodetectors to drive a small speaker. In my second picture you can see a headphone amp using a OPA2132 opamp, it was my first try and I etched a board for this one. Because this was cool to a lot of people in Croatia, I was called to present these on a HiFi show called Multipak. Later that year I made these small boards which where upgraded versions of my first attempt. I solder everything by hand ofcourse and will keep it that way if I can. These small boards had an OPA2227 which in my opinion have better sound than OPA2132. These portable CMoys use a 9v battery, but only one. Next logical upgrade was to add two batteries so here you can see the newer version with two batteries. I swapped the two wima input caps to two JB caps. Then I made a full sized speaker amp with two LM3886 Ic's. This is one of the best sounding amps I ever heard so that was an achivement! And the last two pictures is my newest project which is an headphone amp with bluetooth built in and the usual OPA2227 op amp. As far as audio tehnology this is it but I have a huge portfolio of projects if anyone is interested!

If you have any questions feel free to ask!

 

[msing539]

This is great, would love to see more of your work.

 

[vmiguel]

Nice work! Do you sell? I might be interested on a CMOY headphone amp.

 

[Jan Kristijan]

Nice work! Do you sell? I might be interested on a CMOY headphone amp.

I do sell them but Im sure ill get banned if I talk about that here. I make all of my three versions besides the BT one.

 

[msing539]

I don't think you'd get banned but you might have a status change like Member of the Trade and be unable to sell. I'd ask the mods for clarity.

 

[Jan Kristijan]

I don't think you'd get banned but you might have a status change like Member of the Trade and be unable to sell. I'd ask the mods for clarity.

It's ok if I can't sell here, anybody can contact me outside of Head-Fi if they want anyways. I just want to show my work here!
BTW, I see that you have the 7hz timeless, have you tried the Moondrop kato? If yes are they similar in any way or is one better than the other?

 

[Zerousen]

Super cool! I think for smaller operations, you should be okay, I have been doing small batch sales as a hobby for a while. Having a legitimate business and storefront is another story though.

 

[Jan Kristijan]

Super cool! I think for smaller operations, you should be okay, I have been doing small batch sales as a hobby for a while. Having a legitimate business and storefront is another story though.

I just hope something will sell once in a while, I make everything by hand so I don't have big batches to sell. Im happy to hear that this is working out for you! Chi-Fi is way to competitive.

 

[msing539]

It's ok if I can't sell here, anybody can contact me outside of Head-Fi if they want anyways. I just want to show my work here!
BTW, I see that you have the 7hz timeless, have you tried the Moondrop kato? If yes are they similar in any way or is one better than the other?

Yeah for sure, keep the work pics coming!

I haven't tried the Kato (or if I did, I don't remember). I've tried the Dunu Zen, Hulk, a lot of 64 Audio, EE Odin, UM Mest/Mext/Indigo, bunch of stuff.

 

[vmiguel]

I do sell them but Im sure ill get banned if I talk about that here. I make all of my three versions besides the BT one.

Well, if you could send me a PM with details, I might have found my christmas present