I am building an aleph 5 and being a newbie I am confused regarding the practice of bypassing capacitors that some members seem to favour.
I would like to know which caps should be bypassed in terms of priority and what values to use.I understand some people suggest bypassing the rectifier diodes as well. None of this seems to be mentioned by Nelson Pass in his articles.
I also see that members like to use exotic caps. I can probably get some Black Gate caps. however ther seem to be very many types and prices.Where should these be placed in preference-at the input?
Any help would be appreciated
I would like to know which caps should be bypassed in terms of priority and what values to use.I understand some people suggest bypassing the rectifier diodes as well. None of this seems to be mentioned by Nelson Pass in his articles.
I also see that members like to use exotic caps. I can probably get some Black Gate caps. however ther seem to be very many types and prices.Where should these be placed in preference-at the input?
Any help would be appreciated
Advice on cap bypassing please
Suggest you use the search function, there are plenty of threads on this rather than going over old ground,
But quickly, only the 220 uf in the front end of the Aleph need be of good quaility.
Parelling modest quality power filter caps with give good results and you can shunt then with a o.10 film cap if you want to get fancy.
regards
Ian
Suggest you use the search function, there are plenty of threads on this rather than going over old ground,
But quickly, only the 220 uf in the front end of the Aleph need be of good quaility.
Parelling modest quality power filter caps with give good results and you can shunt then with a o.10 film cap if you want to get fancy.
regards
Ian
Bypass capacitors
You can perfectly use a Blackgate 220 uF on the front end .That's what I did and it works perfectly well.
If you are particularly pointillous on the final result,bypass it with a 0.1 uF film cap.Then you should also think to bypass all electrolytics from the PSU with film caps.
Enjoy your hobby!
You can perfectly use a Blackgate 220 uF on the front end .That's what I did and it works perfectly well.
If you are particularly pointillous on the final result,bypass it with a 0.1 uF film cap.Then you should also think to bypass all electrolytics from the PSU with film caps.
Enjoy your hobby!
Aleph caps
"Only the 220 uf in the front end of the Aleph need be of good quaility"
HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA!
I beg to differ............
H.H.
"Only the 220 uf in the front end of the Aleph need be of good quaility"
HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA HA!
I beg to differ............
H.H.
Yes, it's EAR damping material. I was scheptical about doing things like that before or didn't bother. However. since my system achieved certain level of resolution even the smallest change in materials used and the way they interact with each other makes a difference. I give one example.
My transport has a wooden side panels attached. I was recently playing with modifications on it and on the DAC so I took the panels off. After I was done and quite happy with the results I put the panels on and immediately didn't like something about the sound. It seemed like it was out of phase and not focused. I decided to take the panels off and everything came back to normal. Now I pay attention to everything. Not only to parts but also materials being used.
My transport has a wooden side panels attached. I was recently playing with modifications on it and on the DAC so I took the panels off. After I was done and quite happy with the results I put the panels on and immediately didn't like something about the sound. It seemed like it was out of phase and not focused. I decided to take the panels off and everything came back to normal. Now I pay attention to everything. Not only to parts but also materials being used.
The addition of some mass to the chassis usually helps. You could experiment by pouring some resin into the bottom of the chassis and attaching a metal plate to the top cover.
Jam
Jam
The addition of some mass to the chassis usually helps. You could experiment by pouring some resin into the bottom of the chassis and attaching a metal plate to the top cover.
Jam
Jam
chassis damping
Try some modeling clay. Very lossy and easily removable. It is more damping than mass that is important for tuning.
H.H.
Try some modeling clay. Very lossy and easily removable. It is more damping than mass that is important for tuning.
H.H.
Advice on cap bypassing please
Okay,
I understand what your point but from a technical stand point some areas are more likely to show major difference that all.
"Every little thing can be a change, but is it better or just different"
regards
macka
Okay,
I understand what your point but from a technical stand point some areas are more likely to show major difference that all.
"Every little thing can be a change, but is it better or just different"
regards
macka
Having looked at all the relevant threads the conclusion is I think to use a good 220uf at the input and bypass the PS caps with film caps of a few uf. Somebody mentioned as a rule of thumb using 1/100 of the value. That means for a 47000uf cap a bypass of 470uf which seems a bit much. Others suggest something like 4.7uf. How critical is this ? Others like HH believe that caps must be all of good quality but I guess you have to draw some lines because cost is not always no object.
And finally what about resistors? How important is it to have good quality and where to put them in preference? The input again ? The signal path ? Everywhere? I see Audio Note offer Beyschlag at very reasonable prices and their own which are extremely expensive. Has anybody used them ?
And finally what about resistors? How important is it to have good quality and where to put them in preference? The input again ? The signal path ? Everywhere? I see Audio Note offer Beyschlag at very reasonable prices and their own which are extremely expensive. Has anybody used them ?
Harry Haller,
What is the amp in Hpotter's picture. Looks like an aleph2?With stereo outputs? Can you give us some info-looks very interesting!Where did you get the heatsinks?
What is the amp in Hpotter's picture. Looks like an aleph2?With stereo outputs? Can you give us some info-looks very interesting!Where did you get the heatsinks?
Where did you get the heatsinks?
They came with the amp. It is a modified Aleph 3. Sorry for having a little fun at your expense..... I am a notorious troublemaker as our fellow forum members will tell you I'm sure.
They came with the amp. It is a modified Aleph 3. Sorry for having a little fun at your expense..... I am a notorious troublemaker as our fellow forum members will tell you I'm sure.
- Status
- Not open for further replies.