[David.M]

hello headfi.org

Just got my Little Dot MKIII yesterday and it sounds fantastic with my Beyer Dt880 250 ohm cans, but I'm having some slight technical difficulties that i hope can be resolved.

I noticed that when i first powered the amp, there was some small interference/static noise coming from the left side (sometimes right) of my headphones. It's some-what intermittent and comes and goes regardless of turning up/down the volume knob.

What can be the problem? I checked all the wires and don't have any staticy electronics nearby. I swapped the tubes around and the static kinda decreased, but it's still there time to time. I even went to the living room and played it on my i-pod and that small static noise was still noticeable

Also, there is that bassy/blowing/humming kind of noise when i turn the knob to full volume. Is this normal?

Is there anything that can be done to fix my problems? thanks

 

[glitch39]

what's the rest of the chain?

could be ground loop on your power cords. or bad interconects introducing noise into the circuit

 

[MomijiTMO]

Better rename your thread. I came here thinking of the AMB M³.

As for your problem, tube amps need warm up time. Does it go away after 30mins? 1 hour? Maybe LD uses crappy tubes? There are so many variables.

 

[David.M]

again, I'm terrible at multi-quoting because i tried a million times and i have yet to figure this out, so...... it's back to good ole '@'


@glitch 39: Musiland Monitor 01 US(via USB) is my DAC and only source. This thing has its own built in OP-AMP 275, can that be what's causing the distortion? But i doubt it because I've unplugged the rca cables, took it to my living room and played it on my i-pod and i still get the noise.

@ Momijitmo: I would rename it if i could, apparently I'm hypothetically dumbfounded and thought there was no way to edit your thread title without a moderator's help

the static becomes a bit less and there's virtually little or no sign of it after 30 min when playing music, but like i said, it's intermittent and i do notice the distortion from time to time.

I have been reading that i need to purchase something called 'Deoxit' or some contact cleanser or something to clean the tube pins. Will this work? and will it also get rid of that noise when i turn the knob to max volume?

 

[tomb]

Quote:

Originally Posted by MomijiTMO /img/forum/go_quote.gif Better rename your thread. I came here thinking of the AMB M³.

Likewise - I'd call it a bait and switch.

... was going to suggest posting it in the DIY section, where AMB would see it right away, but that won't help this ...

 

[ulyses]

Sounds like ground loop. Read this thread
http://www.head-fi.org/forums/f5/use...um-safe-43003/

 

[itsborken]

Quote:

Originally Posted by David.M /img/forum/go_quote.gif @ Momijitmo: I would rename it if i could, apparently I'm hypothetically dumbfounded and thought there was no way to edit your thread title without a moderator's help

Can't you edit the original post with the go advanced button to change the thread title? It just worked for me in a different thread.