6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 29th December 2009, 10:06 PM   #11
diyAudio Member
 
gabrielbecheanu's Avatar
 
Join Date: Jun 2006
Location: Constanta
Send a message via MSN to gabrielbecheanu Send a message via Yahoo to gabrielbecheanu
I check and see that OPA1612 is only a SMD version. To use it we need an adapter.
  Reply With Quote
Old 29th December 2009, 10:09 PM   #12
Banned
 
Join Date: Oct 2009
Quote:
Originally Posted by gabrielbecheanu View Post
I check and see that OPA1612 is only a SMD version. To use it we need an adapter.
Yes...it's worth it! My absolute favorites with the CS4398 have been: OPA1611, LT1028ACN8, and LME49720HA. In other words, the most genuinely transparent (though each different from the others) opamps that I've tried so far.
  Reply With Quote
Old 30th December 2009, 12:11 AM   #13
john65b is offline john65b  United States
diyAudio Member
 
john65b's Avatar
 
Join Date: Jan 2005
Location: Chicago
Andrea,

I have the following OPAMPS in front of me, and more around here somewhere...(some are garbage/singles or combination of both)

TL072CP
RC4558N
OPA627AU
LM6172IN
OPA2134PA
LME49710NA
OPA2227PA
LT1364
NE5532N
LM4562

The LM4562 is my favorite so far...


Gabriel, I will try and download the Sony Test CD and get that aoutput voltage to you...
__________________
All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us? Life of Brian
  Reply With Quote
Old 30th December 2009, 08:41 AM   #14
Banned
 
Join Date: Oct 2009
I'm not surprised...and as I said the LM4562 goes well with the CS4398.

That said, personally I wasn't satisfied with the LM4562NA. I really preferred the LME49720HA to it, that's why I suggested that you try the LM4562HA.
  Reply With Quote
Old 6th January 2010, 01:08 PM   #15
cjkpkg is offline cjkpkg  United States
diyAudio Member
 
Join Date: Aug 2008
Location: Roswell GA
What kind of B+ are you running and what are specifics on your PSU?

Thanks!
  Reply With Quote
Old 6th January 2010, 01:25 PM   #16
adamus is offline adamus  United Kingdom
diyAudio Member
 
Join Date: Apr 2008
why not tranformer couple. I used sowters. all opamps removed.
  Reply With Quote
Old 6th January 2010, 01:32 PM   #17
Banned
 
Join Date: Oct 2009
Why ten times more distortion (if not more) would be so desirable?

With opamps, it depends on the opamps...really.
  Reply With Quote
Old 6th January 2010, 01:34 PM   #18
Banned
 
Join Date: Oct 2009
In this kit I'd also bypass the 4 green Nichicon Muse between DAC and opamp with something like Wima .1uF 250V MKS4, for instance (for size).
  Reply With Quote
Old 10th January 2010, 02:39 PM   #19
diyAudio Member
 
Join Date: Oct 2009
Location: Java
I did change LM4562NA with LM4562HA (metal can) last week, the sound seems better than 4562NA but I haven't check that further since my maggie loudspeaker hitted by DC current comes from my friend stuppid tube pre-amp..
1 thing I noticed is 4562HA run much hotter than 4562NA so I have to put cooling fin around the 4562HA
  Reply With Quote
Old 10th January 2010, 03:13 PM   #20
Banned
 
Join Date: Oct 2009
Quote:
Originally Posted by eherdian View Post
I did change LM4562NA with LM4562HA (metal can) last week, the sound seems better than 4562NA but I haven't check that further since my maggie loudspeaker hitted by DC current comes from my friend stuppid tube pre-amp..
1 thing I noticed is 4562HA run much hotter than 4562NA so I have to put cooling fin around the 4562HA
10 mA of total supply current is the same for both chips. Did you plug them correctly, i.e. soldered on some TO99 to DIP adapters (like from Browndog)?
  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
Aikido 6SN7 input 5687 output eeyore Tubes / Valves 2 27th March 2009 09:17 PM
16SL7+6SN7 Aikido regal Tubes / Valves 4 7th July 2008 07:46 AM
Tube rectified LC PS for 6SN7 Aikido - choke DCR question LowRedMoon Tubes / Valves 3 20th June 2008 05:20 AM
tube hum in a 6SN7 Aikido - is this weird? cbutterworth Tubes / Valves 16 12th March 2007 04:52 PM
aikido 12b4 input 6sn7 output??? cbutterworth Tubes / Valves 1 26th October 2006 11:06 PM


New To Site? Need Help?

All times are GMT. The time now is 12:03 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