classd4sure said:
So in others words you've got to wait like the rest of us until Lars has the production modules with him mid August?
Supernaut77 said:
Listening impressions will be largely what my reports will consist of. Others who are better equipped than I will be taking care of the measurements for you, so I won't concern myself with that aspect of it.
I intend to report on how it sounds, pre and post filter, with various kinds of test music I listen to, any areas where I find it lacking, any areas where I think it excels, and just be bluntly straight up and honest about it all.
There'll definately be some mention how it compares to UCD, but I intend to keep my reports largely independant of it, with the understanding that you can have two good amps, so it will largely be judged with an open mind, on its own merit first and foremost.
I'll get to play with it for a good long while so tweaks and mods aren't out of the question and we'll just see where it goes.
As far as Nuforce or anything else, I have my personal doubts they're even in the running, but if they'd like to send me an amp I'll sure comment on it. Fat chance of that I think though. Anyway, these here are DIY modules for you to build your own amp with, and Nuforce is not in that category at all.
Maybe a ColdAmp would be fun though (hint hint) 🙂
I can't say with 100% certainty, but I really doubt it! It might be weeks it might be more, I'm anxious too, but let's wait and see 🙂
As a matter fact, i am working on Chris' test amplifier right now. Will post pictures later when i am done. It's hand assembled, so doesn't look so nice, especially the lead free solderings should improve a whole lot in the production modules. 
Soft Start / DC trap: Good Idea! Thanks!
The LED is connected to the microprocessor, and through different blinking signals, can communicate different modes or errors. For example Undervoltage, Startup, Pumping or overload.
And when all is green lights go, then it simply lights .... blue 😉
Soft Start / DC trap: Good Idea! Thanks!
The LED is connected to the microprocessor, and through different blinking signals, can communicate different modes or errors. For example Undervoltage, Startup, Pumping or overload.
And when all is green lights go, then it simply lights .... blue 😉
Lars Clausen said:
Why not a PS with onboard softstart and DC-trap? I would like to se a similar PS as this one:
http://www.lcaudio.com/index.php?page=45
It would be a nice compliment if some (like me) wants a 7-channel amplifier…
Keep up the good work… 😉
Hi Chrisclassd4sure said:
That's excellent and we wouldn't expect you to be anything other than blunt, straight up and honest about it all 😀
I am really looking forward to reading your posts about Lar's NCD1 amp 😎
Exciting and as John Paul Piccard would say "LET IT BE SO"
rgds
Hi AllKLe said:Exciting and as John Paul Piccard would say "LET IT BE SO"
rgds
Made a mistake ... Lars has corrected me ... It should be 'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
Viva La France and as the Borg would say "Resistance is Futile, You will Comply"
rgds
What's the difference between 'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
and
'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
😕
and
'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
😕
KLe said:
Hi All
Made a mistake ... Lars has corrected me ... It should be 'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
Viva La France and as the Borg would say "Resistance is Futile, You will Comply"
rgds
Well, bluntly and honestly as always, there is non, they're both wrong. What he meant to say is: (I seriously hate myself for this...) Make it so
Thanks KLe I appreciate the sentiment a great deal.
Cheers!
KLe said:
Hi All
Made a mistake ... Lars has corrected me ... It should be 'Exciting and as Jean Luc Piccard would say "LET IT BE SO"'
Viva La France and as the Borg would say "Resistance is Futile, You will Comply"
rgds
While this is horribly off topic I shall correct you further:
Jean Luc says: "Make It So"
You really botched that one. LOL. 🙂
Today i went with a NewClassD amplifier to make some listening tests at a well known danish hifi entusiast named Peter. Objective to establish the exact difference between pre / post filter feedback, and other factors as well. But seen only from sound persepctive, not technical.
This guy has a quite good (= expensive) and extremely revealing setup, and it's always good to have someone else's opinion.
The NewClassD amplifier is a starter kit, standard, with a 200 VA transformer (slightly undersized, but worked fine anyway).
To my big surprise there was remarkably little difference between pre and post filter feedback. We changed back and forth a few times to make sure. I was using LC Audio Stripline as internal signal cable. But Peter proposed to replace it with a bit of Van den Hul D-501. And there you had the difference!
If we say the feedback accounted for 10% of difference, the Van den Hul D-501 held 90%. Incredible. I must admit i have always believed that Stripline was good, because it is constructed of the best available materials. But obviously this was wrong. The amplifier opened up in a whole new way. We also tried out some Van den Hul Clearwater speaker cable internally, and that worked fine too, but not so much difference over the TEFLAR used in the first tests. (Maybe expectable, since the length was only about 6 inches or so).
If i should try to explain the difference in the feedback setups
the pre filter setting was slightly more alive, and dynamic, especially in the bass. And the resolution was slightly better in the top.
But the post filter setting was surprisingly close to the same sound. Maybe a little bit more 'mr nice guy' sound on that one. The music stayed a little bit further back. In this setup. But again the difference was only just noticable, even on these expensive loudspeakers.
Against Peter's high-end analog amplifier, somewhat comparable to ML 27, in price (my guess around 4500 US$) , size and sound, the 700 US$ worth of NewClassD amplifier survived quite well. And who knows, with a little extra transformer............
This guy has a quite good (= expensive) and extremely revealing setup, and it's always good to have someone else's opinion.
The NewClassD amplifier is a starter kit, standard, with a 200 VA transformer (slightly undersized, but worked fine anyway).
To my big surprise there was remarkably little difference between pre and post filter feedback. We changed back and forth a few times to make sure. I was using LC Audio Stripline as internal signal cable. But Peter proposed to replace it with a bit of Van den Hul D-501. And there you had the difference!
If we say the feedback accounted for 10% of difference, the Van den Hul D-501 held 90%. Incredible. I must admit i have always believed that Stripline was good, because it is constructed of the best available materials. But obviously this was wrong. The amplifier opened up in a whole new way. We also tried out some Van den Hul Clearwater speaker cable internally, and that worked fine too, but not so much difference over the TEFLAR used in the first tests. (Maybe expectable, since the length was only about 6 inches or so).
If i should try to explain the difference in the feedback setups
the pre filter setting was slightly more alive, and dynamic, especially in the bass. And the resolution was slightly better in the top.
But the post filter setting was surprisingly close to the same sound. Maybe a little bit more 'mr nice guy' sound on that one. The music stayed a little bit further back. In this setup. But again the difference was only just noticable, even on these expensive loudspeakers.
Against Peter's high-end analog amplifier, somewhat comparable to ML 27, in price (my guess around 4500 US$) , size and sound, the 700 US$ worth of NewClassD amplifier survived quite well. And who knows, with a little extra transformer............
Nice to hear some listening test. I would be quite interested in the kind of material used for playback? Type of recording used in the material?
Lars,
Are you going to perform ABX testing? Cables making 900000% difference is... a bold statement.
Are you going to perform ABX testing? Cables making 900000% difference is... a bold statement.
ok 900000% is maybe slightly exagerated. 😀
Yes i am going to do a high end version with a big heavy transformer, optimized cables etc. Then we will do a new comparison after the summer holidays.
Yes i am going to do a high end version with a big heavy transformer, optimized cables etc. Then we will do a new comparison after the summer holidays.
Hi Lars,
It seems your LC audio cable is likely the difference between solide core silver (Van Den Hul stuff) or merely silver plating over copper which is likely to impart some form of signal smearing variance with frequency given skin effect and the different conductances of the materials used.
Futhermore it could also easily be explained as the difference between shielded and unshielded cable, as from what I've seen the LC audio stripline doesn't appear to be shielded and is merely a twisted pair?
Maybe it would be an interesting and revealing test to see it redone with your basic, cheap, shielded microphone cable.
Cheers
It seems your LC audio cable is likely the difference between solide core silver (Van Den Hul stuff) or merely silver plating over copper which is likely to impart some form of signal smearing variance with frequency given skin effect and the different conductances of the materials used.
Futhermore it could also easily be explained as the difference between shielded and unshielded cable, as from what I've seen the LC audio stripline doesn't appear to be shielded and is merely a twisted pair?
Maybe it would be an interesting and revealing test to see it redone with your basic, cheap, shielded microphone cable.
Cheers
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