gracky
100+ Head-Fier
- Joined
- Aug 6, 2002
- Posts
- 104
- Likes
- 18
Dear Headfi DIYers,
I've tried stacking six HA3-5033s per channel for my meta42 like amp, and sonically quite preferred it to my former 3 Buf634s per channel version. Unfortunately, running this amp for more than 30-60min, buffers start to malfunction. They stop all operation and only make a hum-like lower frequency noise regardless volume nor source. After cutting off the power for a while, the amp works but it starts to malfunction again soon. And I'm suspecting the heat. 5033s are going quite hot while they're running.
I've prepared places for 3 chips per channel, so 2 chips are stacked per socket. Only upper chips are heatsinked. My suspicions are
1. Anyway I have to prepare all the six sockets to eliminate stacking and heatsink all chips,
2. Maybe chips are damaged soldering pins directely, so I have to buy new chips and improve my soldering skill, ...
Would anyone experienced this buffer inform me about your experiences regarding the heat? Thank you in advance for any help.
I've tried stacking six HA3-5033s per channel for my meta42 like amp, and sonically quite preferred it to my former 3 Buf634s per channel version. Unfortunately, running this amp for more than 30-60min, buffers start to malfunction. They stop all operation and only make a hum-like lower frequency noise regardless volume nor source. After cutting off the power for a while, the amp works but it starts to malfunction again soon. And I'm suspecting the heat. 5033s are going quite hot while they're running.
I've prepared places for 3 chips per channel, so 2 chips are stacked per socket. Only upper chips are heatsinked. My suspicions are
1. Anyway I have to prepare all the six sockets to eliminate stacking and heatsink all chips,
2. Maybe chips are damaged soldering pins directely, so I have to buy new chips and improve my soldering skill, ...
Would anyone experienced this buffer inform me about your experiences regarding the heat? Thank you in advance for any help.