DingoSmuggler
100+ Head-Fier
- Joined
- Jul 11, 2011
- Posts
- 283
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- 28
Quote:
Finished the build today. Powered on with no issues. Playing some tunes right now but I have a bad case of the hum with hd650s . Persists with ibuds as well. Just a constant volume hum that stays even with music playing. I have the a/c unit just on the other side of the door so it's not completely quiet of an environment and it is still quite bothersome. With music without quieter passages it's easier to forget about it but with a lot of my music where there are pauses it is quite noticeable.
Going to sleep now. Will try it tomorrow with the lid to see if it is indeed less that way. Will also try the choke instead of the resistor tomorrow. Just wanted to try to get a working project tonight.
Sq wise so far, it is extremely clean with dumont 5964 tubes. Oddly enough it sounds non tubey to me. Might be the tubes but coming from a warm lush amp it's a change of pace. Very very clean vocals. Barring the hum issue it is a pretty nice amp. Hopefully that issue gets sorted out soon. Excellent amp Doug. Thanks to Tom for the excellent kit.
To me your hum issue sounds somewhat worse than other peoples, perhaps a ground loop issue?
What's you're source, could its signal ground be connected to AC ground? Can you try with a different source?
in other news...
...I'm still waiting for Auspost to send a kangaroo over from sydney to perth with a torpedo kit in its pouch.
If the kangaroo survives the long trip across the nullarbor, i might see my amp this afternoon at best, or maybe tomorrow if its an older kangaroo.
Lets just hope they haven't sent a wombat, or I'll be waiting a long while - damn equal opportunity laws.