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The Astell & Kern AK120 - Page 265

post #3961 of 6011
Quote:
Originally Posted by Sam Edwards View Post
 

Welcome to the club, Bob!

 

Thanks Sam, looking forward to the headphone adventure that is staring back at me with anticipation! The groups collective wisdom will be called upon to help me steer clear of obvious IUDs, (one does hope)!

post #3962 of 6011
Quote:
Originally Posted by Sam Edwards View Post
 

BTW Bob, can you actually hear the difference between 192 and 96khz? For the sake of space I was considering going to 24bit/48khz. The big news for me is 24bit, not crazy high sampling rates. 

Sam

 

Sorry Sam but so far, I cannot say that there has been that "oh my" moment when the difference has so obvious but then, my choice for 96 or 192 is generally, only if the original masters support such resolution. I do agree, 24 bit is to a large extent, a no brainer.

post #3963 of 6011
Quote:
Originally Posted by onlychild View Post

I have nothing but ALAC in 16 and 24 bit (44, 88, 96, 192) with no issues at all. All were converted from flac using dbpoweramp.

 

Hi onlychild, I was 100% FLAC but eventually, made the move, (using dbpoweramp), to move everything to ALAC uncompressed. For my highrez FLAC, I kept the original source in FLAC, made a high rez version in ALAC and then down sampled a third ALAC version for the iPod. Some hi-rez was also purchased in ALAC.

 

My first transfers to the AK120 were the full rez ALAC versions so I was very surprised with the AK120 started coughing on the 192kHz versions. I travel extensively and do not have a lot of time so took the fast route and put either the original FLAC or db'd versions of the 96 and 192 ALAC versions in exchange.

 

I will do some more testing and hopefully will see where the root problem is, (I hope that is).

cheers

 

Bob

post #3964 of 6011
Hey Bob,

Have you upgraded the alac codec for dbpoweramp to the latest one available?

That might help. Also, I'm on firmware 1.32.

Thx
post #3965 of 6011
Anybody find the pro eq weird?
I turn it off. I just got it few days ago.
post #3966 of 6011
I'm on 1.33
post #3967 of 6011
Quote:
Originally Posted by onlychild View Post

Hey Bob,

Have you upgraded the alac codec for dbpoweramp to the latest one available?

That might help. Also, I'm on firmware 1.32.

Thx

 

Hi onlychild

 

Upgraded my dbpoweramp this morning. I was a couple of iterations behind, thanks for the reminder. I am on the latest version for the AK120, 1.33.

 

Will do the testing through today.

 

Just wondering why all the meta data is stripped when downloading files to the AK120. Does not matter whether ALAC or FLAC, I get the same question, (Windows 8 base system), that prior to proceeding with the file transfer, I have to agree with the extraneous data stripping?

 

Cheers

 

Bob

post #3968 of 6011

Try Aiff or WAV. ALAC is like FLAC. There could be some issue with card speed when doing Losses vs full bit. If you get a hick up, try the onboard memory as well. I honestly think doing 192 as lossless may be a waste unless you just don't want to many versions. I'd rather listen to 96 wav. I do prefer 192 when all the ducks are in a row but lossless compressions tend to skew the rows just a bit.

 

As for DBpoweramp, it's not just the main program, make sure you update to the latest codecs as well. It's not automatic with the platform upgrade.

 

One think I really like about the AK120 is that it plays so many formats. I do think you tend to lose a little with any conversion with even the better programs commonly used. 


Edited by goodvibes - 9/27/13 at 11:52am
post #3969 of 6011
Quote:
Originally Posted by goodvibes View Post
 

Try Aiff or WAV. ALAC is like FLAC. There could be some issue with card speed when doing Losses vs full bit...

 

Both WAV & AIFF are un-compressed lossless PCM files which means they are perfect copies of the original data (music) with no processing or compression. They are identical in content (bits) so they should sound identical provided the correct SW is used to play them. They also require the least amount of processing (=none) for playback.

 

All other compressed formats require processing which may cause audible 'anomalies' due to the quality of processor. Un-compressing compressed formats also uses way more battery power/time than playing un-compressed files like WAV and AIFF.

post #3970 of 6011
Quote:
Originally Posted by goodvibes View Post
 

Try Aiff or WAV. ALAC is like FLAC. There could be some issue with card speed when doing Losses vs full bit. If you get a hick up, try the onboard memory as well. I honestly think doing 192 as lossless may be a waste unless you just don't want to many versions. I'd rather listen to 96 wav. I do prefer 192 when all the ducks are in a row but lossless compressions tend to skew the rows just a bit.

 

As for DBpoweramp, it's not just the main program, make sure you update to the latest codecs as well. It's not automatic with the platform upgrade.

 

One think I really like about the AK120 is that it plays so many formats. I do think you tend to lose a little with any conversion with even the better programs commonly used. 

 

 

Quote:
Originally Posted by burtomr View Post
 

 

Both WAV & AIFF are un-compressed lossless PCM files which means they are perfect copies of the original data (music) with no processing or compression. They are identical in content (bits) so they should sound identical provided the correct SW is used to play them. They also require the least amount of processing (=none) for playback.

 

All other compressed formats require processing which may cause audible 'anomalies' due to the quality of processor. Un-compressing compressed formats also uses way more battery power/time than playing un-compressed files like WAV and AIFF.

 

Hi Goodvibes and Burtomr

 

For me, WAV, takes up too much space, especially when ALAC or FLAC, provides 100% of the data at 20% to 30% less space consumption. My library is too big for the limited amount of space on this player and I would be needing the 128GB chips with an uncompressed Codec.I do how-ever agree that they perhaps provide a lower processing requirement but I really expect the AK120 to be up to the job.

 

In so far as sound quality goes, there has been so many blind tests done where listeners tried to tell the difference between identical files from different Codecs, compressed or uncompressed with out resolution. This does not mean that there isn't to some, a personal favorite format that delivers higher degree of confidence that one is getting what one wants but so far, as long as the codec re-building the audio stream is doing it's job, I will go with the version that delivers the highest song density.

 

I though, will not accept a single bit out of place and if the AK120 codecs could not do their job correctly, then I would be all over the vendor whilst defaulting to a version that does not need decompression. I don't think that was what caused the initial problems.

 

I have upgraded my dbPoweramp as well as the Codecs. The AK120 is brand new, (V 1.33),, the 64GB Ultra Sandisk memory chips, the standard recommended, and the one item that may have potentially contributed was that a complete charge had not been done on the unit. I have reformated the cards and with all songs, 44 kHz through 192, 16 bit through 24, not seen another case of stuttering.

 

What I am experiencing is some damm good playback that seems to rival my man cave's LINN Majik DAC and player. Exactly what I wanted.

 

Now, the search is on for the proper IEMs to match but I can safely say, the AK120 has certainly breathed new life into the Westone UM3X I have and which have lived on the iPod for the last couple of years.

 

Thanks for all the great advice.

 

Bob

post #3971 of 6011
Just announced on Astell & Kerns Facebook page that when 128G micro SD cards are released both AK players will support them... 320G of musical goodness on the 120 biggrin.gif
post #3972 of 6011
Any idea release date for the cards. I'm in process of ordering the sd to microsd expansion and 128gb sd cards. If microsd around corner I can wait and save some money!!
post #3973 of 6011

a good price @ bhphotovideo.com for anyone who wants one for 995$

 

http://www.bhphotovideo.com/c/product/983651-REG/astell_kern_ak120_high_fidelity_audio_system.html

post #3974 of 6011
Quote:
Originally Posted by azynneo View Post

a good price @ bhphotovideo.com for anyone who wants one for 995$

http://www.bhphotovideo.com/c/product/983651-REG/astell_kern_ak120_high_fidelity_audio_system.html

Item not available anymore on your link frown.gif
post #3975 of 6011
Quote:
Originally Posted by Gintaras View Post


Item not available anymore on your link frown.gif

 

That was at least the second time they've had a used one. I would keep checking back if you're interested.

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