DavidNighorn
New Head-Fier
- Joined
- Mar 20, 2006
- Posts
- 7
- Likes
- 0
Hello all,
I have been lurking and learning for over a year now. Nearly 9 months ago, based on rave reviews here, I bought the Singlepower MPX3. Needless to say, it is absolutely wonderful.
But now I have a problem. Just in the last few days, I have started to hear static from the amp (via the phones). It sound is constant but varies - kind of like the sound of rain and wind on a window. The static varies in loudness as the volume is adjusted and is present with both sources. In fact, the static is there with no sources connected. It is also there even when I disconnect the power cable (while the caps still have power). Switching phones does not change anything either.
Clearly, the source of the static is somewhere in the amp. With 700 hours on it, do you think that I could be losing a tube? Is such a noise consistent with tube failure. My tubes look fine visually. One other data point, the volume knob position required to get a particular output sound level has gone down quite a bit from normal. IOW, I don't have to turn it up much to get the same levels as I used to get.
Any help would be appreciated. I love this amp but I cannot stand to listent to it right now with the static.
David
I have been lurking and learning for over a year now. Nearly 9 months ago, based on rave reviews here, I bought the Singlepower MPX3. Needless to say, it is absolutely wonderful.
But now I have a problem. Just in the last few days, I have started to hear static from the amp (via the phones). It sound is constant but varies - kind of like the sound of rain and wind on a window. The static varies in loudness as the volume is adjusted and is present with both sources. In fact, the static is there with no sources connected. It is also there even when I disconnect the power cable (while the caps still have power). Switching phones does not change anything either.
Clearly, the source of the static is somewhere in the amp. With 700 hours on it, do you think that I could be losing a tube? Is such a noise consistent with tube failure. My tubes look fine visually. One other data point, the volume knob position required to get a particular output sound level has gone down quite a bit from normal. IOW, I don't have to turn it up much to get the same levels as I used to get.
Any help would be appreciated. I love this amp but I cannot stand to listent to it right now with the static.
David