tbla said:
Me too
Possible that nobody have enough documentation to build a concentra-clone?
bye!
loong said:
Sorry for my misspelling
I mean your ideal "ChipAmp"
I changed it for you.
Faber said:
Me too
Possible that nobody have enough documentation to build a concentra-clone?
bye!
Well, I saved these images from a review that appeared in a Italian (if I remember correctly) audio mag. The photo's are from the Rowland Integrated amp which has the same circuitry as their other amps (which use 6 devices per channel) The image of the basic balanced circuit was from memory. (Hope it is right!) Also, for you "DC servo offset" fans, please look closely at the bottom photo. It appears JR has found that it is unnescessary. (contrary to what National Semi's BP-200 application paper seems to indicate).
Enjoy!
-T
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
The most people talks about the transformer as the principal actor in the concentra's fine sound. I believed that it was used to balance the signal as depicted in the tecnofossil's post.
wich kind of balancer do they use? Also, I tried to take a closer look to the pictures posted and others found on this forum. It seems that they use only SMD components, but I'm not able to find SMD components with normal GC design capacitance (where is the classical 1000uF x rail capacitor?)
Well, soon it will be a hifi fair in Milan, I'll ask to look at the interior ;-)
Bye!
wich kind of balancer do they use? Also, I tried to take a closer look to the pictures posted and others found on this forum. It seems that they use only SMD components, but I'm not able to find SMD components with normal GC design capacitance (where is the classical 1000uF x rail capacitor?)
Well, soon it will be a hifi fair in Milan, I'll ask to look at the interior ;-)
Bye!
Valve buffered IGC
Why is he referring to him in the third person ?
protos said:I don't know if he means production models as some of you are posting or what an unlimited cost diy chipamp would be like in terms of parts , power supply , casing etc.
Why is he referring to him in the third person ?
Hi all,
I just finished my first GC (Non-invertin, LM3875+22K+680. PS 25+25VAC with 1000UF directly mounted with the ship per rail, and each 1000UF at the PowerSupply). Normal metal film R & SCR 2.2UF Capacitor. Very happy with the result so far.
So I just wonder if we, as DIYer, have changes to build a ChipAmp. It doesn't matter if we clone the commercial one or not. ( Even a clone of Peter Danial's one )
What is the best result we can get from a ChipAmp ?
I just finished my first GC (Non-invertin, LM3875+22K+680. PS 25+25VAC with 1000UF directly mounted with the ship per rail, and each 1000UF at the PowerSupply). Normal metal film R & SCR 2.2UF Capacitor. Very happy with the result so far.
So I just wonder if we, as DIYer, have changes to build a ChipAmp. It doesn't matter if we clone the commercial one or not. ( Even a clone of Peter Danial's one )
What is the best result we can get from a ChipAmp ?
matjans said:well, if we're speaking chipamps and not gainclones, my personal favorite (at the moment) is the linn klimax...
(1)
Do you mean this one (Linn Klimax Twin Stereo Power Amplifier)?
http://www.audiorevolution.com/equip/linnklimaxtwin/
How it sounds?
(2)
Now I have another budget for a new amp, ~ US$200-250. However, I was convinced to buy a NAD C320BEE. ( My source is NAD C521BEE, prefer directly connect the CD to the amp without pre).
Any one ever compare LM3875 GC with C320 BEE?
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