Post by sandyk on May 19, 2014 20:48:43 GMT
I am in trouble with this device.
Trouble begins with the PSU, blown suddenly while I was listening music through my speakers, (I generally use g3 as a tube preamp/buffer - at 3th volume step)
after that I started to use 19 volt 3.4 amper notebook adapter...
everything was beatifull than I started to tube rolling, bought 12au7 RCA and HITACHI tube, and continue enjoying music. several weeks later very loud crackling and popping sounds started to come from g3. I thought this was because tube, I switched to hitachi 12au7 tube. Nothing changed.
when I look beneath the pcb red led was blinking with cracking noise.
I thought this was a socket issue because when I was touching the tube noise was going away.
so I desolder the socket and resolder with high quality solder.
While this little amp playing dirty with me, indeed hifilab send me new psu. I plugged it in and nothing changed. red led not lighting anymore. Plus only rigth channel is working and I have to turn the volume waaaay up to hear anything. headphone amp section is another type of trouble, both channels working there but left and right channels sounds from both channels. =)))
what is going on and what should I do ? any thougths
These HAs often fail at just over 12 months due to poor thermal design with the electrolytic capacitors s being exposed to too much heat caused by the poor layout and inadequate cooling.
Personally, I wouldn't persist with it, and I would obtain something a little better designed.
for the kits and completed amplifiers of this type that are from the USA.( Jeremy)