Hi,
Call me crazy, but I don´t think these PCM56 are fakes. Not sure though. I didn´t buy any.
The seller also has PCM56 in other grades and procendences (korea rather than japan). I remember the experts on PCM63 discussing different grades and origin of chips here at diya.
-Alex
5PCS Audio D/A Converter IC BB DIP-16 PCM56P-K PCM56PK PCM56P-KG4 MADE IN JAPAN | eBay
PCM56 devices are currently still being manufactured by T.I. Factory authorized distribution price is about $25 ea., so I should think that something is suspect those $3.99 devices.
I got a 1865N-K off ebay and slapped it in and everything works.
It doesn't sound quite as good so I am suspecting its an Nj model or lower. I will test it out later, but for for now it sounds 95% as good.
It certainly beats having to mess around with rochester's minimum order quantity.
I also have a few 1862s on the way and I will be making a new dac board for it. I will have to find a clever way of getting my 5v supply up to 12v, but hopefully that shouldn't be too difficult : D
I also have 4 TDA1387s so it looks like I get to build all the dacs lol.
Once I figure out which dac I like the best, I am probably going to tear everything apart and build it right. LCLC power supply, 71a tube output, transformers everywhere. Its gonna be good : P
It doesn't sound quite as good so I am suspecting its an Nj model or lower. I will test it out later, but for for now it sounds 95% as good.
It certainly beats having to mess around with rochester's minimum order quantity.
I also have a few 1862s on the way and I will be making a new dac board for it. I will have to find a clever way of getting my 5v supply up to 12v, but hopefully that shouldn't be too difficult : D
I also have 4 TDA1387s so it looks like I get to build all the dacs lol.
Once I figure out which dac I like the best, I am probably going to tear everything apart and build it right. LCLC power supply, 71a tube output, transformers everywhere. Its gonna be good : P
note that AD1862 has current out, so your sound result will be heavily dependent on used I/V
Yeup. The AD1865 is current out too.
PCM56 devices are currently still being manufactured by T.I. Factory authorized distribution price is about $25 ea., so I should think that something is suspect those $3.99 devices.
I believe it´s $3.99 for 5 chips. Here at diya people have reported good results with that seller (polida). So I think they might be genuine pulls.
Sorry, just found someone who reported fakes from that seller.
POLIDA2008 A Real Thi.ef on eBay! Fake MOSFETS!
POLIDA2008 A Real Thi.ef on eBay! Fake MOSFETS!
And here is a person who received genuine 2SK170 from that seller, however the 2SJ74 were remarked devices apparently.
Mystery 'sj74'? jfets
Ken Newton, I think you are right, 3.99 for 5 devices is just too low a price, beware guys.
Thanks,
Alex
Mystery 'sj74'? jfets
Ken Newton, I think you are right, 3.99 for 5 devices is just too low a price, beware guys.
Thanks,
Alex
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I got a 1865N-K off ebay and slapped it in and everything works.
It doesn't sound quite as good so I am suspecting its an Nj model or lower. I will test it out later, but for for now it sounds 95% as good.
I bought an AD1865N-K off ebay last year. I don't know whether it is a real K version or not.
After listening to it for awhile, I did the MSB adjustment described in the Analog Devices information sheets and there was a significant drop in THD+N. That resulted in a significant step up in soundstaging and musicality to my ears.
I did the adjustment using an external sound card (Focusrite) and Arta software.
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