I recently acquired a second Denon POA2400 which needs replacement of a few parts. This is their "Optical Class-A" amp, rated 200W/8ohms, 350W/4ohms. My working unit is great, but I see that many parts are less than "audiophile-grade"...
I figure as long as I'm in there, maybe I could upgrade some critical parts in the signal path and power supply rails.
Anyone modded these amps, or have suggestions for changing those parts which would give the "most bang for the buck"?
-chas
First image is the voltage amplifier stage 1
I figure as long as I'm in there, maybe I could upgrade some critical parts in the signal path and power supply rails.
Anyone modded these amps, or have suggestions for changing those parts which would give the "most bang for the buck"?
-chas
First image is the voltage amplifier stage 1
Attachments
clm811 said:take the terrific power transformer and build a new amp
Leach amp boards : www.diyaudio.com/forums/attachment.php?s=&postid=1616000&stamp=1222149740
Such a power amp is one heck of a conversion amp, as are all late 80s Denon numbers, only requires a board transplant.
Parts upgrade suggestions?
The amp diagrams above show no caps in signal path, BUT there are resistors and bypass caps (as well as power supply caps and bridges(obvious candidates).
Which of these do you folks think are most inportant to upgrade in quality? Or should ALL parts be upgraded(too expensive and I'd probably go to another circuit).
TIA -chas
The amp diagrams above show no caps in signal path, BUT there are resistors and bypass caps (as well as power supply caps and bridges(obvious candidates).
Which of these do you folks think are most inportant to upgrade in quality? Or should ALL parts be upgraded(too expensive and I'd probably go to another circuit).
TIA -chas
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