Marant 7c preamp diyzone project - diyAudio
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Old 30th December 2006, 08:00 PM   #1
Josep is offline Josep  Europe
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Default Marant 7c preamp diyzone project

Somebody knows anything about this project from diyzone?

http://forum.diyzone.net.cn/viewtopi...b90a7d878d2d84
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Old 30th December 2006, 08:02 PM   #2
Josep is offline Josep  Europe
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the schematics :
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Old 30th December 2006, 08:12 PM   #3
Netlist is offline Netlist  Belgium
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It has been a hot item in many topics over here:
http://www.google.com/search?hl=nl&r...yaudio.com&lr=

/Hugo
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Old 31st December 2006, 08:24 AM   #4
Josep is offline Josep  Europe
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Thanks, but I think maybe this can be a best project than others.
PCB and power supply seems very good.

Josep
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Old 31st December 2006, 08:41 AM   #5
Netlist is offline Netlist  Belgium
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It is nice, but assembling a kit, sold by people whose sole purpose is to make money by ripping off others is not really encouraged over here.

/Hugo
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Old 31st December 2006, 09:00 AM   #6
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Quote:
Originally posted by Josep
Thanks, but I think maybe this can be a best project than others.
PCB and power supply seems very good.

Josep


Maybe not. The 7C had a pretty good phono stage and a very mediocre line stage. Its claim to fame is based mostly on collectors value.

Four (4) caps along the signal?!! ECC83 follower!!! I bet it only sounds good with TFKs
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Old 31st December 2006, 09:06 AM   #7
Josep is offline Josep  Europe
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Quote:
Originally posted by Hugo
It is nice, but assembling a kit, sold by people whose sole purpose is to make money by ripping off others is not really encouraged over here.

/Hugo

You are right!
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Old 31st December 2006, 02:29 PM   #8
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Josep,

You better go with an Aikido from John Broskie at:
http://www.tubecad.com/2006/05/blog0064.htm

Choose your input tubes depending of the gain needed
and you'll get better results than the Marantz 7 preamp!!!

Even without a PCB the results will be higher quality and bandwidth!!
And there are on Tubecad many PS's to choose from.

As Analog_sa said: " the Marantz 7 is good for his collector value,
not for his preamp stage... "
And most, avoid diyzone

Regards.
Alain.
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Old 31st December 2006, 02:38 PM   #9
phn is offline phn  Sweden
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1 1/2 12AX7 and massive feedback!

The tube amps the likes of Marantz did in the 1950-60s are the equals to the ss amps the Japanese electonics giants did in the 1970s. Not bad, but you can do a helluva lot better.

Go Akido.
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Old 1st January 2007, 04:46 PM   #10
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Default Of all the preamps to copy, not that one!

...It's phono preamp isn't bad but the post volume control circuits are veiled. The Audio Research SP-3-6 is basically am offshoot of this. They both evolved from an original Westrex circuit which in some ways was superior to either the Marantz or the Audio Research.
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