Kore-eda Amplifiers -- preamp and power amp, both are chip-based design. How about?
http://www.sakurasystems.com/products/koreeda.html
http://www.sakurasystems.com/products/koreeda.html
It looks like chip diy design ...
Original Gaincard or Peter Daniel design (Patek) looks much better.
But the most important is the sound. We don't know nothing about it.
Original Gaincard or Peter Daniel design (Patek) looks much better.
But the most important is the sound. We don't know nothing about it.
The price seems a lot lower than previous Sakura equipment. If I didn't know better, I'd say the competition has dropped the price point of handmade chipamps.
widman
widman
If I'm correct, Sakura Systems is the name of 47 Labs' distributor.
KORE-EDA amps might be a new and independent product line that Sakura Systems is carrying. It may or may not have anything to do with Junji Kimura or 47 Labs. If no connection, the product has to be judged on it's own merit, not as a new product under the 47 Labs label.
There is a little 47 Labs logo on the top of the page, though, so I don't know if it is, indeed, a 47 Labs product or not.
The amps have that very clean, utilitarian Japanese look to them. In a vague way they remind me of the early Audio Note Ongakus. The rib-sided chassis reminds me of an off-the-shelf (as opposed to a custom designed, machined, and manufactured) chassis from a DIY project, however.
As always, the sound's the thing, and I'm very curious as to how good or not this thing sounds.
BTW, here's a review of one of KORE-EDA's tube offerings:
http://tinyurl.com/p2m7a
Best,
KT
KORE-EDA amps might be a new and independent product line that Sakura Systems is carrying. It may or may not have anything to do with Junji Kimura or 47 Labs. If no connection, the product has to be judged on it's own merit, not as a new product under the 47 Labs label.
There is a little 47 Labs logo on the top of the page, though, so I don't know if it is, indeed, a 47 Labs product or not.
The amps have that very clean, utilitarian Japanese look to them. In a vague way they remind me of the early Audio Note Ongakus. The rib-sided chassis reminds me of an off-the-shelf (as opposed to a custom designed, machined, and manufactured) chassis from a DIY project, however.
As always, the sound's the thing, and I'm very curious as to how good or not this thing sounds.
BTW, here's a review of one of KORE-EDA's tube offerings:
http://tinyurl.com/p2m7a
Best,
KT
If you also notice, those are the only 2 products you can buy directly from a website, using paypal.
If I was paying that sort of money, I would not want to be looking at exposed screw heads and computer generated labels behind clear plastic (no matter what it sounds like)! That looks more DIY than most of the stuff we see here. 😡
I just fail to see what you get for the money here...
The pics can be enlarged on the website if anyone is interested to see what you get in the boxes:
http://www.sakurasystems.com/graphics/pla2.jpg
http://www.sakurasystems.com/graphics/lla2.jpg
The pics can be enlarged on the website if anyone is interested to see what you get in the boxes:
http://www.sakurasystems.com/graphics/pla2.jpg
http://www.sakurasystems.com/graphics/lla2.jpg
Anybody can manufacture at least 10 units for the money they ask for a single one, not to mention the fun of building and improving it yourself as opposed to paying $1600 for it done by anybody else 😀
tifosi_f1 said:I just fail to see what you get for the money here...
The pics can be enlarged on the website if anyone is interested to see what you get in the boxes:
http://www.sakurasystems.com/graphics/pla2.jpg
http://www.sakurasystems.com/graphics/lla2.jpg
A Good job you do. I have saved all the enlarged pictures.
The preamp and power amp both seem very simple. I am curious the sound of them.
In addition, there are no information regarding them on 47Labs official website ( http://www.47labs.co.jp/ ). I think Kore-eda is another products line of Sakura Systems, not the 47Labs'.
Funny how history repeats itself.
A lot of the comments about what you get for the asking price sounds a lot like what was said about the 47 Labs Gaincard.
I guess it's expected once you can build something similar for a lot less money.
Can anyone identify the chips in the preamp from the graphical markings on the top?
Best,
KT
A lot of the comments about what you get for the asking price sounds a lot like what was said about the 47 Labs Gaincard.
I guess it's expected once you can build something similar for a lot less money.
Can anyone identify the chips in the preamp from the graphical markings on the top?
Best,
KT
KT said:Funny how history repeats itself.
Can anyone identify the chips in the preamp from the graphical markings on the top?
Best,
KT
It seems AD chip? AD797?
I'm chocked to see a rather nice looking pcb and a picture of the inside. Very mysterious, indeed and online shop also.

Can anybody identify the components in the preamp ?
http://s7.photobucket.com/albums/y252/praganj/?action=view¤t=2.jpg
As far as i can see they use:
1. Small transformer from Talema/India with 2x115V input and two 2.5VA 15V AC outputs
2. Two rectifiers composed from four normal diodes
3. Two bigger caps, probably 3300/25V
4. 78xx and 79xx regs with two small electrolyt caps - decoupling caps ?
5. Preamp section with adXXX opamps ?
6. Small red tantalum caps close to opamps ?
7. Around opamps they are four resistors
8. One polystyren/aluminium input? output ? cap from BC ?
Can anybody identify more details and maybe create the schematic of this small pre ?
Who knows, maybe it sounds very good.
Cheers, Tomek
http://s7.photobucket.com/albums/y252/praganj/?action=view¤t=2.jpg
As far as i can see they use:
1. Small transformer from Talema/India with 2x115V input and two 2.5VA 15V AC outputs
2. Two rectifiers composed from four normal diodes
3. Two bigger caps, probably 3300/25V
4. 78xx and 79xx regs with two small electrolyt caps - decoupling caps ?
5. Preamp section with adXXX opamps ?
6. Small red tantalum caps close to opamps ?
7. Around opamps they are four resistors
8. One polystyren/aluminium input? output ? cap from BC ?
Can anybody identify more details and maybe create the schematic of this small pre ?
Who knows, maybe it sounds very good.
Cheers, Tomek
the KORE-EDA PLA1 power amp seems to use:
only 2 x 470µF blue BT nichicon capacitors per channel (maybe with the two smaller ones closer to the chip)
(info: http://www.nichicon-us.com)
plastic input cap (white, but maybe only pe)
LM1875 (or equivalent in TO-220 case)
steel potted transformer
filtering chokes (?) close the rectifiers
the few resistors I can spot look like carbon resistors
Personally I think those SMD resistors soldered p2p (on the LED wires) are nice, I like them - can only be made by hand...
only 2 x 470µF blue BT nichicon capacitors per channel (maybe with the two smaller ones closer to the chip)
(info: http://www.nichicon-us.com)
plastic input cap (white, but maybe only pe)
LM1875 (or equivalent in TO-220 case)
steel potted transformer
filtering chokes (?) close the rectifiers
the few resistors I can spot look like carbon resistors
Personally I think those SMD resistors soldered p2p (on the LED wires) are nice, I like them - can only be made by hand...
unbelievable
I hope no one here has the intention of putting money values behind those parts....
compare with the finished product
sickening to say the least.....
more than the upvalue of a Chevrolet.....
Jean-Pierre
I hope no one here has the intention of putting money values behind those parts....
compare with the finished product
sickening to say the least.....
more than the upvalue of a Chevrolet.....
Jean-Pierre
Eva said:not to mention the fun of building and improving it yourself as opposed to paying $1600 for it done by anybody else 😀
Improving?? Don't all amplifiers sound the same?? How could you improve something that sounds like the best one?

So what are we talking about here anyway ~£150-200 or so to build the lot, right?
The Gaincard was one of the most cynical marketing ploys outside the cable industry. This is almost as bad.
The Gaincard was one of the most cynical marketing ploys outside the cable industry. This is almost as bad.
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