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Little Dot I+ Tube Rolling - Page 147

post #2191 of 2203
Quote:
Originally Posted by i luvmusic 2 View Post

Something like these..............










that would be something but lack of room in the case will propably stop me from replacing them. Now I'm thinking of getting a new, bigger case. For the moment I will replace the two 3.3uf 50v caps with ERO 1813 3.3uf 100v and further plan in getting rid of 3 crappy brown nichicons that are left.
Edited by ajuztam - 2/26/15 at 3:43am
post #2192 of 2203

Depends on the Value of the CAPS but usually the Poly/Film caps are larger than the electrolytic so yeah you can't use the stock chassis.

post #2193 of 2203

Yesterday i added extra capacitors to psu part. Originally there were 2x nichicons  2200 each. I replaced them with 1800uf panasonics fc. To exceed the original level I added 470uf elna cerafines and extra 220uf panaconics. They can be removed easily in case if the sound is not good after burning. Now there is ~5000uf. I also soldered gold pins extracted from dip8 socket to those very weak transformer power cables. Now they will not break of the pcb every time i take the little dot apart. I'm looking forward to getting c3g's from siemens. I already got a mounting socket for them that i will attempt to make an adapter with. I looked at some post from other thread showing installation of c3g valves. I don't like the idea of an adapter on top of another. I have to come up with some sort of design so they don't stick out too much taking a lot from little dot's appearance. I love the little dot because of so many mods and tweaks that can be done to it. Great for somebody who can't afford 2k amp plus all it's mods that we would do anyway. It's like my maverick d1 DAC that i constantly upgrade. It's almost finished now.

post #2194 of 2203
Quote:
Originally Posted by ajuztam View Post
 

Yesterday i added extra capacitors to psu part. Originally there were 2x nichicons  2200 each. I replaced them with 1800uf panasonics fc. To exceed the original level I added 470uf elna cerafines and extra 220uf panaconics. They can be removed easily in case if the sound is not good after burning. Now there is ~5000uf. I also soldered gold pins extracted from dip8 socket to those very weak transformer power cables. Now they will not break of the pcb every time i take the little dot apart. I'm looking forward to getting c3g's from siemens. I already got a mounting socket for them that i will attempt to make an adapter with. I looked at some post from other thread showing installation of c3g valves. I don't like the idea of an adapter on top of another. I have to come up with some sort of design so they don't stick out too much taking a lot from little dot's appearance. I love the little dot because of so many mods and tweaks that can be done to it. Great for somebody who can't afford 2k amp plus all it's mods that we would do anyway. It's like my maverick d1 DAC that i constantly upgrade. It's almost finished now.

NICELY DONE!

 

Are those Caps in AUDIO PATH?

post #2195 of 2203
Quote:
Originally Posted by i luvmusic 2 View Post
 
Quote:
Originally Posted by ajuztam View Post
 

Yesterday i added extra capacitors to psu part. Originally there were 2x nichicons  2200 each. I replaced them with 1800uf panasonics fc. To exceed the original level I added 470uf elna cerafines and extra 220uf panaconics. They can be removed easily in case if the sound is not good after burning. Now there is ~5000uf. I also soldered gold pins extracted from dip8 socket to those very weak transformer power cables. Now they will not break of the pcb every time i take the little dot apart. I'm looking forward to getting c3g's from siemens. I already got a mounting socket for them that i will attempt to make an adapter with. I looked at some post from other thread showing installation of c3g valves. I don't like the idea of an adapter on top of another. I have to come up with some sort of design so they don't stick out too much taking a lot from little dot's appearance. I love the little dot because of so many mods and tweaks that can be done to it. Great for somebody who can't afford 2k amp plus all it's mods that we would do anyway. It's like my maverick d1 DAC that i constantly upgrade. It's almost finished now.

 

NICELY DONE!

 

Are those Caps in AUDIO PATH?

 

He said, "psu part."  PSU = Power Supply Unit.  So, no.

 

Depending on the design and implementation of the amplifier, upgrading the capacitors in a power supply can help.  It very rarely ever hurts.

post #2196 of 2203
Quote:
Originally Posted by tomb View Post
 
Quote:
Originally Posted by i luvmusic 2 View Post
 
Quote:
Originally Posted by ajuztam View Post
 

Yesterday i added extra capacitors to psu part. 

NICELY DONE!

 

Are those Caps in AUDIO PATH?

 

He said, "psu part."  PSU = Power Supply Unit.  So, no.

 

Depending on the design and implementation of the amplifier, upgrading the capacitors in a power supply can help.  It very rarely ever hurts.

Sorry my bad i was caught up with the caps changes i forgot that PSU part.I would just BYPASS those instead of replacing them.

post #2197 of 2203
Quote:
Originally Posted by i luvmusic 2 View Post
 

Sorry my bad i was caught up with the caps changes i forgot that PSU part.I would just BYPASS those instead of replacing them.


They will be sooner or later ;)

post #2198 of 2203

 I tried replacing PS caps with my other amp and i did not noticed any audible changes how ever bypassing them i've noticed that when measuring the voltage with my DMM the reading stopped bouncing around by few milivolts like how it used to when it does not have the bypass caps.BTW i'am not an engineer so i could be wrong.

post #2199 of 2203
Quote:
Originally Posted by i luvmusic 2 View Post
 

 I tried replacing PS caps with my other amp and i did not noticed any audible changes how ever bypassing them i've noticed that when measuring the voltage with my DMM the reading stopped bouncing around by few milivolts like how it used to when it does not have the bypass caps.BTW i'am not an engineer so i could be wrong.


Additional capacitors can often help a power supply in reducing ripple.  I think the question in this case was whether audiophile-quality capacitors meant to be used in the signal path (Elna Cerafines) actually had a more beneficial effect in the PSU than superior power capacitors (Panasonic FC's or FM's).  It's impossible to tell in this case, because the poster used both. ;)

post #2200 of 2203

 I do understand the ripple effect and I've gone from 10,000uf to 22,000uf still no audible effect and Bypass it with a nice film caps still no audible effect at least to my ears.IMO i would not bother with PS caps for this amp instead i will look into upgrading any  CAPS that are in the AUDIO path doesn't need to be those expensive Poly or Electrolytic Caps.


Edited by i luvmusic 2 - 2/28/15 at 3:57pm
post #2201 of 2203

 BTW The only upgrade that i've done to my Ld 1+ is i replaced the Potentiometer due to it's channel imbalanced  and that is it.I have no plans on doing any cap rolling for now and for me it is very interesting to see someone rolling those CAPS makes me think of doing the same.IMHO this amp sound great the way it is specially if you are using the C3g's and you can manage to replace the POT.


Edited by i luvmusic 2 - 2/28/15 at 4:29pm
post #2202 of 2203
Quote:
Originally Posted by i luvmusic 2 View Post
 

 I do understand the ripple effect and I've gone from 10,000uf to 22,000uf still no audible effect and Bypass it with a nice film caps still no audible effect at least to my ears.IMO i would not bother with PS caps for this amp instead i will look into upgrading any  CAPS that are in the AUDIO path doesn't need to be those expensive Poly or Electrolytic Caps.


No offense, but when we're talking about ripple in an audiophile power supply, none of it is directly audible.  Instead, it shows up as higher distortion - particularly in IM.

 

Ripple reduction in an audiophile power supply is concerned with extraneous AC in the microvolt values.  It can't even be measured directly with the best DMM's.  They don't measure AC down that low.  You need a specialized low-noise amplifier just to test for the ripple component in an audiophile power supply.  Yet, improvements in this regime are readily audible - but only by a cleaner sound, more free from distortion, etc.  It's not anything such as actually hearing the ripple, unless the amplifier performance is so decrepit that everything is directly audible.

 

All that said, I can't disagree - particularly because I have no direct experience with this amp.  What you state may indeed be the case - upgrading components in the signal path may have the best effect.  If that's true, though, then the effect of the amp's existing components may be worse than the effects of a sub-standard power supply.


Edited by tomb - 2/28/15 at 6:05pm
post #2203 of 2203
Quote:
Originally Posted by tomb View Post
 
Quote:
Originally Posted by i luvmusic 2 View Post
 

 I do understand the ripple effect and I've gone from 10,000uf to 22,000uf still no audible effect and Bypass it with a nice film caps still no audible effect at least to my ears.IMO i would not bother with PS caps for this amp instead i will look into upgrading any  CAPS that are in the AUDIO path doesn't need to be those expensive Poly or Electrolytic Caps.


No offense, but when we're talking about ripple in an audiophile power supply, none of it is directly audible.  Instead, it shows up as higher distortion - particularly in IM.

 

Ripple reduction in an audiophile power supply is concerned with extraneous AC in the microvolt values.  It can't even be measured directly with the best DMM's.  They don't measure AC down that low.  You need a specialized low-noise amplifier just to test for the ripple component in an audiophile power supply.  Yet, improvements in this regime are readily audible - but only by a cleaner sound, more free from distortion, etc.  It's not anything such as actually hearing the ripple, unless the amplifier performance is so decrepit that everything is directly audible.

 

All that said, I can't disagree - particularly because I have no direct experience with this amp.  What you state may indeed be the case - upgrading components in the signal path may have the best effect.  If that's true, though, then the effect of the amp's existing components may be worse than the effects of a sub-standard power supply.

No worries.

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