Can anyone tell me what differences there are between the Aleph Ono and the Xono? Is there a difference in X circuit topology and power supplies?
Thanks
KDT
Thanks
KDT
Your question is very good, and there seems to be little information on this available.
What little info I have seen indicates (with significant interpolation in my part 🙂) the circuit topology and circuit is the same if not identical ... Differences in topology are likely to be minor (if any)
I would expect the power supplies to be enhanced, and that the main advance lies here.
Petter
What little info I have seen indicates (with significant interpolation in my part 🙂) the circuit topology and circuit is the same if not identical ... Differences in topology are likely to be minor (if any)
I would expect the power supplies to be enhanced, and that the main advance lies here.
Petter
I guess Pass Labs explain the difference on their site:
"The Xono is based on the design pioneered in the Aleph Ono. The basic Ono design has not changed but been extend and refined. The separate power supply combined with the additional filtering and dual mono power supply design contribute to the lower noise floor and sonic improvements. The main circuit board layout has been completely revised to reduce noise, shorten the signal path and reduce the length of connecting wires. Sonically critical parts have been optimized and upgraded through continued extensive listening tests. "
"The Xono is based on the design pioneered in the Aleph Ono. The basic Ono design has not changed but been extend and refined. The separate power supply combined with the additional filtering and dual mono power supply design contribute to the lower noise floor and sonic improvements. The main circuit board layout has been completely revised to reduce noise, shorten the signal path and reduce the length of connecting wires. Sonically critical parts have been optimized and upgraded through continued extensive listening tests. "
As far as I have understood that SuSy-thing (I am not too deep into that matter), it gains its benefits from a balanced topology which the XOno definitely is not.
Like on the Aleph Ono, the inverted output is generated at the end of the whole thing.
As far as I remember - I had an XOno about one and and a half years ago for some weeks - the amplifier circuit itself is indeed nearly identical to that of the Aleph Ono.
---
Holger
Like on the Aleph Ono, the inverted output is generated at the end of the whole thing.
As far as I remember - I had an XOno about one and and a half years ago for some weeks - the amplifier circuit itself is indeed nearly identical to that of the Aleph Ono.
---
Holger
Certainly one of the best phono amps I have ever listened to.
What I found the most impressive was its extreme dynamics and power, not that sweet and smooth "analogue" sound. It's delivering an enormous amount of detail, too. Great machine.
---
Holger
What I found the most impressive was its extreme dynamics and power, not that sweet and smooth "analogue" sound. It's delivering an enormous amount of detail, too. Great machine.
---
Holger
hey peter daniel
u got yourself one massive mm amp
could u post the schematics
by the way is it discrete or ic
u got yourself one massive mm amp
could u post the schematics
by the way is it discrete or ic
And it is a discrete Phono Stage I can say! 🙂
Peter, Why didn't you completely seperate the power supply, but only the transformers?
I see that you've split up some capacitors into a lot of smaller ones... Which C's did you split and why those?
Bouke
Peter, Why didn't you completely seperate the power supply, but only the transformers?
I see that you've split up some capacitors into a lot of smaller ones... Which C's did you split and why those?
Bouke
I wanted to built it fast. The circuit was so small that I had enough space to fit PS (and it's separate for ea. channel). The caps were ROE 1000u, Sprague Extralytics and Panasonic HFQ 150u. I didn't even built an enclosure for 2 separate transformers.
If I would be doing it again I mount phono module directly on TT output, no interconnects.
If I would be doing it again I mount phono module directly on TT output, no interconnects.
my interpretation of Ono
Where do I get the Free Sample brand caps. Those are my favorites! My next favorite are surplus.
H.H.
Where do I get the Free Sample brand caps. Those are my favorites! My next favorite are surplus.
H.H.
Peter
Would you be willing to share your board layour for the Ono? I want to put one together.
Thanks,
RonS
Would you be willing to share your board layour for the Ono? I want to put one together.
Thanks,
RonS
I don't mind sharing the layout. The board is only for MM amp with RIAA components outside, done p2p. The same for power supply. If you interested, I'll try to retrive from my other computer the layout. It was more than 3 years when I did it.
If you run across that layout please email me a copy also....looks like a great project!
thank you,
rt
thank you,
rt
Peter,
If it's not too much trouble to find the layout I'd appreciate it, although I think it's probably better to make a design where the riaa components are not off the board.
By the way, was it you who said that the Ono didn't need the output coupling cap if something in the circuit was matched or balanced??
Cheers,
RonS
If it's not too much trouble to find the layout I'd appreciate it, although I think it's probably better to make a design where the riaa components are not off the board.
By the way, was it you who said that the Ono didn't need the output coupling cap if something in the circuit was matched or balanced??
Cheers,
RonS
One reason I didn't include those components on a board was that anybody can use different size parts (I used MIT caps which are bigger than usually), the layout is simpler also. No DC blocking cap, I placed trimmer at differencial pair which adjusts the offset. I'll search today.
Peter,
Can you elaborate on the trimmer on the differential pair? Do you mean that you put a trimmer in between the sources of the two halves of the sk389? If so what value did you use?
Thanks, and thanks for the photo of the layout, although I don't think I can do anything with it 😉
Cheers,
RonS
Can you elaborate on the trimmer on the differential pair? Do you mean that you put a trimmer in between the sources of the two halves of the sk389? If so what value did you use?
Thanks, and thanks for the photo of the layout, although I don't think I can do anything with it 😉
Cheers,
RonS
- Status
- Not open for further replies.