Anagram Sonic 2 and Timelock evaluation boards

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plep

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Joined 2004
#1
Dear All,

I came across this http://www.anagramtech.com/shop/

The Sonic 2 evaluation board is a fully functional dac without power supply and with the Anagram upsampling algorithm (384Khz) and some more interesting features.

Timelock is a high precision clock (.5ps jitter).

As I understood it there will be no Sonic4 evaluation board.

All this seems to me like interesting toys to play with. I learned some ideas reading the sonic2 user’s manual. Could this be better than, say a Benchmark? I’ll easily believe it.

Also are those .5ps jitter figure comparable with the 2 to 5 ps jitter given by other current best products like Trent Lab or the way they are measured makes these numbers meaningless ?

Best Regards.
Philippe (who don’t know if he’ll have the time try theses boards and who has nothing to do with Anagram).
 
#3
very interesting subject. I have a Harman Kardon HD970 cdplayer wich have the same technologies, from Anagram. The potential of that is huge, but are some problems with D/A converter, AD1955, it is very hard to work with in that conditions, I mean AD1955 without internal digital filter. Anagram "remove" digital filter and the D/A converter (AD1955), so will appear many "garbages" unfiltered at the optput of AD1955 in the Mhz range and 200khz(imaging, aliasing). There are 3 low-pass analog filters in the output stages (1-st order I supose) but do not work very well. I remove them and the sound is very rich, spacious, dynamic like a hammer, transparent sound, incredible , but in the same time it is a little(or more) colder, not in the low and medium register, but on the high frecvencies.

I supose the higher rate of resample, at 768 khz, like Sonic 4, the "garbagies" ar gone more far away to the audio band , from 350 khz to few Mhz. I try to remove Mhz garbage band wit..... ferrite rins 😉 and the sound it is a little warmer.
 
#4
greierasul said:
very interesting subject. I have a Harman Kardon HD970 cdplayer wich have the same technologies, from Anagram. The potential of that is huge, but are some problems with D/A converter, AD1955, it is very hard to work with in that conditions, I mean AD1955 without internal digital filter. Anagram "remove" digital filter and the D/A converter (AD1955), so will appear many "garbages" unfiltered at the optput of AD1955 in the Mhz range and 200khz(imaging, aliasing). There are 3 low-pass analog filters in the output stages (1-st order I supose) but do not work very well. I remove them and the sound is very rich, spacious, dynamic like a hammer, transparent sound, incredible , but in the same time it is a little(or more) colder, not in the low and medium register, but on the high frecvencies.

I supose the higher rate of resample, at 768 khz, like Sonic 4, the "garbagies" ar gone more far away to the audio band , from 350 khz to few Mhz. I try to remove Mhz garbage band wit..... ferrite rins 😉 and the sound it is a little warmer.
Click to expand...

They haven't removed the digital filter - just replaced the internal
one with their own higher performance version.

cheers

T
 
#8
Another option is Greg Ball's SKpre modules. These are discrete class A op-amps that can be configured in a number of ways, i.e I/V conversion, balanced to single-ended, headphone drivers etc.

The also include on board discrete high performance regulators. Supplied ready built and tested or as a kit. I've built them and they sound fabulous.

SKpre
 
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