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selman

Responses from selman

Coupling Capacitor upgrade? Which one first?
Do you know anything about these brands and capacitors?Audiocap rt or theta pptJantzen alumen z capRike audio s cap 2Jupiter condenser beeswax ht or wax htLefson c-modIntertechnik audyn tri referenceClarity Cap cmrAudience auricap xoJantzen superi... 
Coupling Capacitor upgrade? Which one first?
Volume pot is between rca input and input coupling caps of the amp..I read lots of comments on the internet about caps between dac and amp.Generally people have tube amp(only have interstage and output capacitor) & dac(have output caps), they ... 
Coupling Capacitor upgrade? Which one first?
I didn't like the scratchy noise while I moving volume pot when I removed the dac output caps. I am planning buy an headphone amp which have not input caps. This can be problem.  
Coupling Capacitor upgrade? Which one first?
Input impedance is 30kohm wrt datasheet.  
Coupling Capacitor upgrade? Which one first?
Amplifier input cap isn't related to cutoff frequency in this chip amp. (cutoff frequency determined with feedback cap and feedback resistor value wrt to datasheet).I begin to guess amplifier input cap is much important than dac output caps(if amp... 
Coupling Capacitor upgrade? Which one first?
I ordered New wimas from mouser, I will try them next week.Maybe my amp input wimas are fake ones. Maybe it makes a difference. What do you think which one is more important caps, amplifier input or dac output?  
Coupling Capacitor upgrade? Which one first?
George actually I tried to change The dac output caps with wire. Not too much change. (just a feeling some thing removed :)Because of this, I started to think amplifier input cap more important than dac output caps(>>>>).But you guys m... 
Coupling Capacitor upgrade? Which one first?
Dac is altmann attraction dac with 3.3uf wima mks2 63vdc output coupling caps. Amplifier is a diy chip integrated amplifier with 4.7uf wima mks2 63vdc  input caps.Both working with 12v.Using 35v plus will be enough I think. Source is linear psu po... 
Faint speaker hiss
There is also a good article about noises:https://www.gcaudio.com/tips-tricks/system-noise/ 
Faint speaker hiss
I looked at the manual of this naim amp:"3.4 Radio InterferenceIn some circumstances, depending on where you live and the earthing arrangements in your home, you may experience radio frequency interference. Controls on broadcasting in some territo... 
Faint speaker hiss
Hi mgreg42.This is great question that I also want to learn answers..1-Try unplug all rca inputs(source or preamp isn’t connected) & Short your rca inputs of your amplifier.If you hear a noise from your speakers it should be the noise floor(SN...