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-   -   Marantz M9 clone in bridge (http://www.diyaudio.com/forums/solid-state/229390-marantz-m9-clone-bridge.html)

Stee 5th February 2013 09:48 AM

Marantz M9 clone in bridge
 
1 Attachment(s)
This project is intended for connection to bridge with input transformer
have diamond input solution and very low feedback (set to 40dB) :)

Stee 7th February 2013 05:56 PM

new version
 
1 Attachment(s)
the diamond buffer stage drives a voltage then a current stage
with exactly the same mode

the gain is different only for feedback shutter :confused:

Stee 19th June 2015 08:57 PM

from ebay
 
5 Attachment(s)
:)

sharbatgula 19th July 2015 09:29 AM

Hi,
I've seen this amp on aliexpress and e-bay too. So, have you tried it? Someone on diyaudio has written that the measured slew rate is very low 4V/uS for a current feedback amplifier.

Stee 19th July 2015 01:39 PM

not yet
 
1 Attachment(s)
but I have a new project :cool:
IPANEMA AMP

Stee 20th July 2015 06:09 AM

modify the original VAS current
 
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a solution can be this
doubling the current that drives the output stage follower
just add a resistor in parallel for each branch:bulb:


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