Gentleman E1080PK Decoding Power Amplifier Upgrading Circuit

Published:2011/7/26 21:11:00 Author:Robert | Keyword: Gentleman, Decoding, Power Amplifier, Upgrading | From:SeekIC

The picture shows the Gentleman E1080PK decoding power amplifier upgrading circuit. 1.In the original device the middle power amplifier and the surrounding power amplifier have the same principle which are installed on a same circuit board (which is shown in the picture). The difference is the surrounding power amplifier's negative feed-back resistance R60 is 150kΩ. So it should also change the feed-back resistance R503 to 150kΩ in the middle power amplifier to make the dual sound-channels' gain be same. The original device's middle power amplifier would be used as another sound-channel surrounding power amplifier. And also it should make the original device's four surrounding wiring terminals's series terminals be disconnected and then connect them to the dual channel surrounding power amplifier's output ports.



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