My TRIO KA-5500 was updated. (August 10, 2020)


My TRIO KA-5500 was updated. (August 10, 2020)

Front view


release front panel


Original pri-amplifier unit.


Update pre-amplifier unit. I replaced the electrolytic capacitors.


pri-amplifier unit.


Phono-amplifier unit.
I replaced the electrolytic capacitors.


Phono-amplifier unit.


pop noise skip unit when turn on/off of power switch.


pop noise skip unit when turn on/off of power(bottom).


updated power amplifier unit.



implement the updated power amplifier unit.



Setting KA-5500 on the rack.


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