minivan Posted November 27, 2008 Report Share Posted November 27, 2008 i just found out there's a lot of similarities between this expensive amp and my 32 dollar headamp kits i built recently my question is: who copy who or it's just a Coincident ? Link to comment Share on other sites More sharing options...
deepak Posted November 27, 2008 Report Share Posted November 27, 2008 WHAT Link to comment Share on other sites More sharing options...
deepak Posted November 27, 2008 Report Share Posted November 27, 2008 And do you want to tell us what's going on in your other train wreck of a thread: http://www.head-case.org/forums/headphone-amplification/4750-1-u-splitzer-kevin-gilmore.html Before this one turns into another. Link to comment Share on other sites More sharing options...
spritzer Posted November 27, 2008 Report Share Posted November 27, 2008 Yeah WTF?!?! Similarities as in there are caps, resistors and opamps used in both or the design as a whole? Link to comment Share on other sites More sharing options...
grawk Posted November 27, 2008 Report Share Posted November 27, 2008 I think it's that they have 1/4" jacks Link to comment Share on other sites More sharing options...
minivan Posted November 27, 2008 Author Report Share Posted November 27, 2008 Yeah WTF?!?! Similarities as in there are caps, resistors and opamps used in both or the design as a whole? as a whole, obviously the kits i built used much cheaper component. here's another pic of the headamp kit Link to comment Share on other sites More sharing options...
grawk Posted November 27, 2008 Report Share Posted November 27, 2008 You repeatedly make posts talking around things. Come right out and say what you're trying to imply. Link to comment Share on other sites More sharing options...
aerius Posted November 27, 2008 Report Share Posted November 27, 2008 Which one is your kit, which one's the commercial product? I can't tell a damn thing from the pictures and I doubt anyone else can either. I need good quality pictures of the circuit boards, and label them so I know what I'm supposed to be looking at. Link to comment Share on other sites More sharing options...
minivan Posted November 27, 2008 Author Report Share Posted November 27, 2008 You repeatedly make posts talking around things. Come right out and say what you're trying to imply. i can see u r the type of person who prefer to spending 1000 euro rather then having the possibilities of spending just 32 usd for something similar Link to comment Share on other sites More sharing options...
minivan Posted November 27, 2008 Author Report Share Posted November 27, 2008 Which one is your kit, which one's the commercial product? I can't tell a damn thing from the pictures and I doubt anyone else can either. I need good quality pictures of the circuit boards, and label them so I know what I'm supposed to be looking at. the kits i built is the last pic on my first post more info about the amp is here Rock Grotto Audio Forum - Jaycar Headphone Amp Kit Link to comment Share on other sites More sharing options...
Fitz Posted November 27, 2008 Report Share Posted November 27, 2008 Yeah WTF?!?! Similarities as in there are caps, resistors and opamps used in both or the design as a whole? Not only that, but when you A/B them, the same music comes out of each. If that isn't a dead giveaway that one is a clone of the other, I don't know what is. Link to comment Share on other sites More sharing options...
grawk Posted November 27, 2008 Report Share Posted November 27, 2008 i can see u r the type of person who prefer to spending 1000 euro rather then having the possibilities of spending just 32 usd for something similar No, I want you to say what it is you have to say, or shut the fuck up, asshat. Link to comment Share on other sites More sharing options...
Fitz Posted November 27, 2008 Report Share Posted November 27, 2008 i can see u r the type of person who prefer to spending 1000 euro rather then having the possibilities of spending just 32 usd for something similar Even though you won't tell anybody what these similarities are? Link to comment Share on other sites More sharing options...
Fungi Posted November 27, 2008 Report Share Posted November 27, 2008 i can see u r the type of person who prefer to spending 1000 euro rather then having the possibilities of spending just 32 usd for something similar That's funny, do you even know the gear he uses and is happy with? Link to comment Share on other sites More sharing options...
bperboy Posted November 27, 2008 Report Share Posted November 27, 2008 i can see u r the type of person who prefer to spending 1000 euro rather then having the possibilities of spending just 32 usd for something similar I can see u r a gigantic douchebag who can't explain what he's actually trying to say. Link to comment Share on other sites More sharing options...
aerius Posted November 27, 2008 Report Share Posted November 27, 2008 I see some vague similarities and that's about it. The layout isn't the same, the parts aren't the same, and the boards sure as hell ain't either. I remain unconvinced of any cloning between the two. Tell you what, trace out the circuit on both amps and we'll talk. Until then I'm going to file this in the tinfoil loony bin. Link to comment Share on other sites More sharing options...
mirumu Posted November 27, 2008 Report Share Posted November 27, 2008 The last photo shows a Jaycar DIY board. Jaycar are an Australian hobbyist chain with various stores in the south pacific region similar to Radioshack. There's a store of their's just down the road from home. Pretty much all of Jaycar's designs come from Silicon Chip magazine and a quick google indicates this one does too. They have a good reputation and I'd be very surprised if they were copying the designs of others. The price is very cheap and I'd actually been tempted to build that kit myself to see what it's like although with a few mods and part substitutions. I don't really see any similarities to the Beyerdynamic amp other than that they're both op-amp based circuits. Certainly the parts and layout aren't similar at all as others have said. I'm no expert by any means and can see some vague similarities in the circuit around the opamps, but I would think that's to be expected and no indication of anything sinister. Link to comment Share on other sites More sharing options...
Voltron Posted November 28, 2008 Report Share Posted November 28, 2008 Obviously separated at birth: Well, except for the fact that the second one appears to have been aborted. Link to comment Share on other sites More sharing options...
swt61 Posted November 29, 2008 Report Share Posted November 29, 2008 ... the second one appears to have been aborted. Sadly it should have been the OP. Link to comment Share on other sites More sharing options...
n_maher Posted November 29, 2008 Report Share Posted November 29, 2008 It's official, this thread sucks on an epic level. Link to comment Share on other sites More sharing options...
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