C.E.C AMP3300R (3300 R Amp 3300R Amp3300) and AMP5300R LEF Class A schematic wanted - Page 2 - diyAudio
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Old 24th November 2010, 09:51 PM   #11
ontoaba is offline ontoaba  Indonesia
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Their amplifiers may not as good as they say, and I feel something wrong at their claims. It is digital based that may suitable for low power and small loudspeakers.
If it is really like what they claim the best, it must be shine everywhere, but it is dark.
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Old 25th November 2010, 10:39 AM   #12
ontoaba is offline ontoaba  Indonesia
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I just found this guy sell CEC MP5300 for $1000 , it is $1599 at new stores. Just for black color? sometimes high end equipment just like a cellphone.


WTS: CEC AMP5300 (Pure Class A integrated amplifier, reduced price)
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Old 26th April 2011, 10:55 AM   #13
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I am still looking for a detailled schematic.
about
CEC AMP 71
Mr. Carlos Candeias explain the theory of operation (scroll down).
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Old 26th April 2011, 11:22 AM   #14
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Quote:
Originally Posted by tiefbassuebertr View Post
I am still looking for a detailled schematic.
about
CEC AMP 71
Mr. Carlos Candeias explain the theory of operation (scroll down).
Hi!
I think he is making famous gesture of Kozakiewicz YouTube - gest Kozakiewicza Moskwa 1980.AVI
PL known high jumper
after a good jump in Moscow 1980 (olimpiade)
in the direction of Russian fans.
This means: I do not show you...
__________________
regards, Pawel
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Old 30th May 2011, 08:57 AM   #15
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an other brand with LEF topology from Mr. Carlos Candeias
http://www.bmc-audio.de/en/pdf/BMC_A..._redefined.pdf
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Old 30th May 2011, 10:11 AM   #16
BV is offline BV  Slovakia
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From pdf
Quote:
Sound quality trumps traditional Class A because of the natural absence of distortion.
But in the only one published test with measurement was distortion about 1,5 % near full power, so it seems, something is wrong...
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Old 31st March 2013, 09:04 PM   #17
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Quote:
Originally Posted by BV View Post
From pdf

But in the only one published test with measurement was distortion about 1,5 % near full power, so it seems, something is wrong...
The main influence of sonic character comes not from the distortion value but from the kind of distortion. 1,5% low order components is less critical than lower values of high order/complex components created by class b.

Until now most employers by test reviews don't understand this fact - unfortunately until now there are additional no THD/IM measuring line up exist, that privide results so I know, how an amp sounds without carry out an own listening test.

P.S. by post #10 about
Cec Amp71
there is my circuit describtion according a CEC schematic, which I have receive in the meantime. However I doubt, that it is the so called LEF topology.
Thus I am still looking for CEC's LEF schematics.

Last edited by tiefbassuebertr; 31st March 2013 at 09:15 PM.
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