Digital, but not by the numbers - Page 31 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th December 2012, 10:13 PM   #301
diyAudio Member
 
Join Date: Jun 2009
Quote:
Originally Posted by fas42 View Post
Well, at the hifi show I just went to, a Lampizator unit performed well, BUT only when fed from a music server: using an Oppo unit as a CD transport crippled the sound. The Swiss CH Precision D1 CD player, $40,000, did a very nice job running into Technical Brain monoblocks. And, all the setups by the National Audio Group had qualities that I was after, I haven't got the material at hand to pinpoint the units used at the moment.

Note, my take is very different from how other people reacted to what was on offer. Equipment which others wrote glowing reports of left me cold - like the Kyron: very hifi sort of sound, if you know what I mean ...

Cheers,
Frank
lampizator LOL

why am I not surprised
  Reply With Quote
Old 7th December 2012, 11:53 PM   #302
fas42 is offline fas42  Australia
diyAudio Member
 
fas42's Avatar
 
Join Date: Jun 2012
Location: NSW, Australia
Blog Entries: 11
Quote:
Originally Posted by Trevor White View Post
lampizator LOL

why am I not surprised
Valves don't always solve "problems"; the same(?) unit was in another demo room, with extremely highly regarded speakers, etc, and it wasn't "helping" the situation -- very flat, boring sound, the same sort of thing that can be heard with much SS gear. I've also had valve amps of the highest persuasion rip my eardrums to shreds with aggressive, take no prisoners sound.

Just because a certain component type is used, doesn't mean that a system is then locked into a certain sound "style" ...

Frank
  Reply With Quote
Old 8th December 2012, 12:47 AM   #303
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
Quote:
Originally Posted by Trevor White View Post
lampizator LOL

why am I not surprised
haha yes i'm afraid I almost posted the same thing last night, my reservations about his stuff has little to do with being valves, which like anything can have good and bad designs. the lamp really seems to have little idea when it comes to digital. his aversion for and replacement of SMD where its the best format for the job is rather trendy, but ultimately flawed thinking IMO.
  Reply With Quote
Old 8th December 2012, 01:26 AM   #304
erin is offline erin  Australia
diyAudio Member
 
Join Date: Nov 2006
Location: http://www.makeitpossible.com/
Quote:
Originally Posted by DF96 View Post
I think one of the problems the OP was facing was that he didn't have much idea about digital circuitry.


diyAudio - View Profile: abraxalito
__________________
Listening is best done using a pair of ears.
  Reply With Quote
Old 8th December 2012, 02:25 AM   #305
fas42 is offline fas42  Australia
diyAudio Member
 
fas42's Avatar
 
Join Date: Jun 2012
Location: NSW, Australia
Blog Entries: 11
Quote:
Originally Posted by qusp View Post
haha yes i'm afraid I almost posted the same thing last night, my reservations about his stuff has little to do with being valves, which like anything can have good and bad designs. the lamp really seems to have little idea when it comes to digital. his aversion for and replacement of SMD where its the best format for the job is rather trendy, but ultimately flawed thinking IMO.
Hmmm ... I've only been aware of Lampizator on a couple of other occasions, so curious what his "crimes" are. Mainly it seems to be, having a pretty lousy website, made my Firefox go off to La-La Land for a while, and creating spaghetti constructions of parts, from what I read. Good thing no-one can see inside some of my workings, . But, on the positive side, he seems to make digital sound work properly, or at least a hell of a lot better, to a lot of people's ears.

I think I'm inclined to forgive him, just a bit ...

Frank
  Reply With Quote
Old 8th December 2012, 03:09 AM   #306
PHEONIX is offline PHEONIX  Australia
diyAudio Member
 
Join Date: Jul 2004
Location: Australia
Hello Frank,

Do you believe that multibit dacs (eg TDA1541) sound better (the difference is huge) than single bit DACS which are called Sigma Delta types (eg AD1955).
  Reply With Quote
Old 8th December 2012, 03:37 AM   #307
fas42 is offline fas42  Australia
diyAudio Member
 
fas42's Avatar
 
Join Date: Jun 2012
Location: NSW, Australia
Blog Entries: 11
Hi, Pheonix ... no, I don't, I've heard good sound from both, for me it's all about the implementation of the digital to analogue circuitry and how the rest of the system helps or hinders the overall process of getting the sound out cleanly. When something is not quite right then the sound will be off, and perhaps multibit devices are more appealing in this situation than S-D units, the latter can sound quite dreary, lacking sparkle and any depth to their sound, when off their tucker, .

In other words, the style of distortion associated with non-optimised in-circuit chips of each variety differ from each other, so then you have to pick your poison. But make no mistake, it is still distortion that shouldn't be there, that's not the fault of the chip in itself, that causing these differences in sound. And something that can be fixed ...

Frank
  Reply With Quote
Old 8th December 2012, 05:05 AM   #308
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
Quote:
creating spaghetti constructions of parts
thats the main one and when talking of clocking and digital circuits what you create is more akin to a radio transmitter and claiming improvements after that....well. Encouraging such messy circuits and mods replacing SMD caps and a ground plane with large film caps connected with long wires, simply because you may prefer a certain dielectric is just bad implementation and flat out dumb....its dumb regardless of whether those who follow his cult like the sound or not.

I find him responsible for a whole raft of DIYers who think its a good idea to use huge NOS Russian film decoupling caps in clock/USB circuits, replacing perfectly suitable caps.

here is a good illustration of what it does and we are talking much higher frequencies in digital and replacing much less inductive caps. I have some very extensive amateur research materials showing scope shots of thousands of combinations of R/C/L decoupling at various frequencies, its very enlightening, let me know if you would like me to email it to you.

if you really believe its all about the implementation, then you should be running a mile from his loosely integrated circuits. but then maybe hes blurred all these digital distortions by the creative use of analogue distortions.

then you have the cheap-*** cases which are not in line with what I would expect in this price-range
  Reply With Quote
Old 8th December 2012, 06:22 AM   #309
PHEONIX is offline PHEONIX  Australia
diyAudio Member
 
Join Date: Jul 2004
Location: Australia
Hello Frank,

What PCB software do you like to use.
  Reply With Quote
Old 8th December 2012, 07:14 AM   #310
erin is offline erin  Australia
diyAudio Member
 
Join Date: Nov 2006
Location: http://www.makeitpossible.com/
Would anyone be so kind to name a delta sigma design that they believe sounds really top notch, and is designed really well, being either:

a cd player
a dvd player
a stand alone DAC

Just curious.
PM me if you don't want to post your answer on the thread.
Thanks
__________________
Listening is best done using a pair of ears.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tubes Numbers kmscouts Tubes / Valves 3 30th September 2012 04:19 AM
Confused by the numbers alexmoose Tubes / Valves 52 7th August 2006 03:06 AM
Still can't get reasonable numbers mashaffer Multi-Way 13 10th July 2006 04:55 PM
Where did these EL84 numbers come from? Sherman Tubes / Valves 2 13th June 2005 06:53 PM


New To Site? Need Help?

All times are GMT. The time now is 02:05 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2