Maybe the crispness is a pretty kind of distortion.
The zobel is not really necessary but a buffer this powerful may be used to drive long cables, low impedance headphones and such.
I have some listening impressions with the zobel and the input filter shifted to 1.5Mhz.
The sound i get is even a bit smoother and liquid without loosing details and dynamic slam. As far as i can tell this sounds perfect to my ears.
It is very natural but also extremely exiting. It is like riding a Porsche or Maserati full speed on the german autobahn. It is fun but also an intellectual exercise. It is hard to describe but i am listening to music in a fresh way.
The zobel is not really necessary but a buffer this powerful may be used to drive long cables, low impedance headphones and such.
I have some listening impressions with the zobel and the input filter shifted to 1.5Mhz.
The sound i get is even a bit smoother and liquid without loosing details and dynamic slam. As far as i can tell this sounds perfect to my ears.
It is very natural but also extremely exiting. It is like riding a Porsche or Maserati full speed on the german autobahn. It is fun but also an intellectual exercise. It is hard to describe but i am listening to music in a fresh way.
Don't think that the level of distortion with and without cascading could be detectable by the ear however what I think is that one less semiconductor on the signal path could be the reason why the non cascade sounds probably crispier and cleaner.
I have to try this out either way but thank you for sharing your impression here.
I will certainly not change the topology. I am too convinced about the result. Try it out yourself. It should work without the cascodes without problem.
Taking about crispness i just heard Ladies of the Canyon again.
Jonis guitar is just there, incredibly detailed, full, frightening dynamic and focussed.
I play the guitar, i told you and this is just awesome.
It even creates a preasure on my chest i only know from life. It is that good.
Taking about crispness i just heard Ladies of the Canyon again.
Jonis guitar is just there, incredibly detailed, full, frightening dynamic and focussed.
I play the guitar, i told you and this is just awesome.
It even creates a preasure on my chest i only know from life. It is that good.
in this case the preamp topologies from PigletsDad maybe also of interest:
http://s26.photobucket.com/user/neiljadman/media/Bootstrap Buffers/PreampSchematic-1.jpg.html
Buffer revision - pink fish media
Bootstrap Buffer Based Preamp Board - Group Buy - pink fish media
btw - pigletsdad is the developer from TAG-McLaren
http://s26.photobucket.com/user/neiljadman/media/Bootstrap Buffers/PreampSchematic-1.jpg.html
Buffer revision - pink fish media
Bootstrap Buffer Based Preamp Board - Group Buy - pink fish media
btw - pigletsdad is the developer from TAG-McLaren
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I can do that, the buffer has pots on the input. The worst case is then with the pots in the middle position and with a 10kOhm pot that is less then 10kOhm. I could of cause simply use a resistor.
I have measured the buffer though with 15 Ohm loading and that is a real torture test.
I have now reduced the bias resistors to 2/3rd and still the MosFets get extremely warm.
Maybe i need separate gate stoppers or another compensation scheme.
I already like the bipolar version better it is easier to stabilize.
I will post a picture of my build and the current circuit diagram. Maybe somebody has an idea.
I have measured the buffer though with 15 Ohm loading and that is a real torture test.
I have now reduced the bias resistors to 2/3rd and still the MosFets get extremely warm.
Maybe i need separate gate stoppers or another compensation scheme.
I already like the bipolar version better it is easier to stabilize.
I will post a picture of my build and the current circuit diagram. Maybe somebody has an idea.
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