2. amps-preamps
  3. 1157123699

Noise from Left Channel

I noticed last night that there is some noise or low level hissing coming from the left channel mainly the tweeter. I am wondering if it is a tube from either the CD player or preamp. Both of them are Jolida. I seriously doubt it is the amp because all of the caps were replaced just a few months ago and thoroughly gone thru with a fine tooth comb. Guess I am asking what happens when a tube starts to go? Thanks in advance.
samzx12
samzx12 OP
1,232 posts
 
It has not got any worse in the past 2 days. Hmmmmmm.
audphile1's avatar
audphile1
5,443 posts
 
what happens when the amp is on and cd player off? do you still have the noise? if yes then its the amp. otherwise its a cd player. try switching the tubes from left to right channel on the unit in question and see if the hiss will shift to the right
dewald_visser
176 posts
 
Can be a faulty tube - but usually a faulty tube will let the 'infected' channel go softer till it is totally quiet.

Don't be surprised if it is a capacitor! Also suspect loose connections & dry soldier joints/connections in the amp or cdp.

Kind rgrds,
DV
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