Which Aikido? - diyAudio
Go Back   Home > Forums > Source & Line > Analog Line Level

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, 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 8th May 2012, 02:19 AM   #1
mattmcl is offline mattmcl  United States
diyAudio Member
 
Join Date: Apr 2009
Location: Erie, CO
Default Which Aikido?

Looking at an Aikido preamp but not sure what would best fit my needs. Input will be primarily a DAC but I'd like the option of adding a phono stage at some point (but this could be a separate unit.) I don't have a power amp yet but am looking at solid state 100wpc designs as well. I'll be powering a set of short Thors 87db @ 6 ohms, and will also need subwoofer outs.

I'm really liking the 5687 all in one, but I'm not really sure of the differences between that and the Octal. I'd like the preamp to bring in noticeable tube warmth and detail.

Thanks for any thoughts.
  Reply With Quote
Old 20th July 2012, 03:22 PM   #2
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
There is a lot written about this. But I remember someone who tried both said the octal version sounded best using 6SN7's.

But as usual all this has to be taken with a big pinch of salt ! There are so many variables that a statement like the one above need not be accurate.
But yes the 6SN7 is generally a good linear tube and so it could possibly sound quite good. That much could possibly be said without much error !
__________________
AM
  Reply With Quote
Old 20th July 2012, 05:01 PM   #3
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Do you need a preamp? Is your DAC unusually low in output, or your amp unusually low in sensitivity or unusually poor in input impedance non-linearity? You may find nothing (short cables) or a well-designed follower (long cables) is better.
  Reply With Quote
Old 20th July 2012, 06:34 PM   #4
Einric is offline Einric  United States
diyAudio Member
 
Einric's Avatar
 
Join Date: Feb 2011
Location: Bozeman, MT
A properly designed preamp won't add much of anything to the music.

I built the Aikido All in One 6CG7 x 6CG7 and LOVE it.
My First Tube Preamp
This thread is pretty much start to finish and was really my first tube project PERIOD.

It sparked much interest in tubes for me and now I am working on a Simple P-P.

Many people say that the 6CG7 is like a 6SN7 in a mini envelope.
The 6CG7 is cheaper than most 6SN7's.
  Reply With Quote
Old 20th July 2012, 07:12 PM   #5
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Quote:
Originally Posted by DF96 View Post
Do you need a preamp? Is your DAC unusually low in output, or your amp unusually low in sensitivity or unusually poor in input impedance non-linearity? You may find nothing (short cables) or a well-designed follower (long cables) is better.
not likely
buffered attenuator ought to do it

or DAC with tube output and buffered attenuator
  Reply With Quote
Old 21st July 2012, 08:34 AM   #6
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
My experience has been that in 'some cases' a preamp improved the sound very significantly. So unfortunately the only real way of finding out in your system is to try it for yourself.
So even if you do not really need a preamp from point of view of sensitivity of the power amp a preamp ( with not too much gain !) shouldn't be a bad idea . A good preamp will add nothing . However if there are some interface issues between source and power amp ( some not easily identified ) then a preamp would probably solve that and improve the sound.
Bottom line : TRY it !

Many places you will see that the new reissue Tungsol 6SN7 is rated very highly.
__________________
AM
  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 help! gorko1 Tubes / Valves 4 28th February 2010 08:35 PM
My Aikido!! piero7 Tubes / Valves 9 31st August 2009 10:56 AM
Aikido HiFiNutNut Swap Meet 1 24th January 2007 04:26 AM
Aikido Preamp Bengali Tubes / Valves 21 12th November 2006 03:19 PM
How did you do your Aikido? Original Burnedfingers Tubes / Valves 18 7th December 2005 03:26 AM


New To Site? Need Help?

All times are GMT. The time now is 07:48 AM.


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