While I was cleaning up my setup tweaking it and getting ti to sound quieter I discovered that one of the power transformers is making alot of noise and vibrating. There is still a humming noise and vibration present even if the fan is unplugged. Not good. It sounds loudest behind the graphic EQ of the amp; if it put some upward pressure on the chassis it stop humming, but the vibration is still present. Feels like it could be the output transformer or the smaller one directly behind it. The sound it makes is identical to the large transformers in the building. I live in an old old building with very large, ineffeciant transformers from at least 40 years ago. This play used to be a Raytheon Missile Factory. I discovered the noise at my friends place, cause the practice space at his house has really sh!t wiring.
I have run the amp with a THD Hotplate attenuator for the 4 years that I have owned the amp. I remember reading someplace that having a resistance load (as opposed to a reactive load) on the amp can be damaging to the output transformer. What are the signs of transformer failure and is there some way I can check if my transformer is dying? Whats the cost of a new one. granted I know it will change the sound of the amp if I do have to get a new one installed.
I do run the amps on as clean of a line as I can get it. I have a APC battery backup unit that I use for a line regulator. It should in theory give the amps a nice clean signal. I need some help with this one.
I have run the amp with a THD Hotplate attenuator for the 4 years that I have owned the amp. I remember reading someplace that having a resistance load (as opposed to a reactive load) on the amp can be damaging to the output transformer. What are the signs of transformer failure and is there some way I can check if my transformer is dying? Whats the cost of a new one. granted I know it will change the sound of the amp if I do have to get a new one installed.
I do run the amps on as clean of a line as I can get it. I have a APC battery backup unit that I use for a line regulator. It should in theory give the amps a nice clean signal. I need some help with this one.