Burning Amp BA-3b (Balanced) - Page 10 - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 28th November 2011, 04:07 PM   #91
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
because I go from the cd-player balanced out........ balanced in BBA-3 and I have only a simple stereo TKD Pot....sounds better....
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 28th November 2011, 04:13 PM   #92
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
good reason
  Reply With Quote
Old 28th November 2011, 05:23 PM   #93
diyAudio Member
 
Join Date: May 2001
Location: Bangalore, India
Quote:
Originally Posted by h_a View Post
IMHO fix the mixer first. I wouldn't expect that simply adding stages is doing only good. Hannes
Fixing the mixer is out of the question. Unlike swapping opamps or something else in Analogue mixers, this is a Presonus Digital Mixer and the bright, metallic sound could be the whole mixer as a package.
__________________
Sam
  Reply With Quote
Old 28th November 2011, 05:25 PM   #94
diyAudio Member
 
Join Date: May 2001
Location: Bangalore, India
Quote:
Originally Posted by Zen Mod View Post
regarding xformers - you must to try this and decide ;

regarding other things - with input resistors increasing you'll not gain anything ( wrong approach - there is no attenuation with that , or at least - there you can gain wrong type of attenuation) , but you need to decrease already mentioned 200 ohms resistor ( but not much - maybe 20%) ......... and also ( which I forgot to wrote , before first morning coffee ) - increase R10 and R11 to 27R , and decrease R13 to same value ;
same on both sides

dunno - that's heavy bleeding of things , I didn't tried it ;
so - you need to test it
Thanks Zen Mod. Advice taken. Will build, listen and report.
__________________
Sam
  Reply With Quote
Old 28th November 2011, 05:25 PM   #95
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
you know - there is always cheap solution - put some elco caps on output

you can shape your own sound , depending what type of caps you're using
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 28th November 2011, 05:43 PM   #96
diyAudio Member
 
Join Date: May 2001
Location: Bangalore, India
I did think about that initially. But then, the control over the sound would be very little as compared to an active solution. But then, what's wrong in trying the cheap solution first. The BA-3B won't go a waste because I want to use them with crippled F4 to drive Fostex 168Sigmas in Quarter Wave Tubes.
__________________
Sam
  Reply With Quote
Old 30th November 2011, 07:27 PM   #97
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Thumbs up BBA-3

what I can say to the qualities of BBA-3.......

I have a Meridian CD-Player with balanced and unbalanced output....

with BBA-3 the difference between balanced in and unbalanced in is very very big......!

Such a big difference was not to hear with Aleph P and even Pumpkin(g) my favorite pre...

conclusion....... 1. the balanced input of BBA-3 is the best I ever had.

2. the unbalanced input of BBA-3 is the worst I ever
had...

3. ...... (fill in yourself and tell me)..................

and a question I cannot answer....

using the BBA-3 unbalanced in and out is the same thing as using a simple BA-3 or is there still a difference?
shorting the in and outputs of one half makes this half dead or is the shorted half still of any use for the activated half?

I am so dumb that I belong to the dump......
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 30th November 2011, 07:43 PM   #98
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally Posted by generg View Post
..
and a question I cannot answer....

using the BBA-3 unbalanced in and out is the same thing as using a simple BA-3 or is there still a difference?
shorting the in and outputs of one half makes this half dead or is the shorted half still of any use for the activated half?

ya see that common resistor between sources of two halves ?

make it from 100+100 ohms , then route their common point to gnd via switch

when you need unbal in + unbal out , flip switch on , then use just one side

or you can use both for stereo
or you can make 4-channel Home ooking theater of it

bal stage is good for converter duty , but can be lousy when flapping side needs to be virtual ground for active side
that can be the case here ....
even if only Pa can confirm that fully ...... like always , I'm here just for public disgrace
Attached Images
File Type: gif buehehe.gif (33.3 KB, 794 views)
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 30th November 2011, 08:35 PM   #99
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Thanks Zen Mod the switch is a very good idea to test the sound difference between a half dead BBA-3 and a complete alive BA-3!
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 1st December 2011, 12:45 PM   #100
diyAudio Member
 
Join Date: Sep 2008
Quote:
Originally Posted by generg View Post
music with BBA-3 has a very good depth and athmosphere .........even when I use it balanced in and unbalanced out for my F4.
How do you use it unbalanced out? Do you connect +out and -out together?
  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
Burning Amp BA-3 Backbones Pass Labs 1718 27th August 2014 04:09 PM
Burning Amplifier BA-2 Variac Pass Labs 1125 1st July 2014 01:39 PM
Burning Amplifier BA-2 Nelson Pass diyAudio.com Articles 5 14th September 2011 06:11 PM
WTB: Burning Amp BA-1 or BA-2 jdubs Swap Meet 0 23rd March 2011 03:16 AM
FS: two burning amps (one each BA-1 and BA-2) without drivers Eric Weitzman Swap Meet 15 17th February 2010 02:35 AM


New To Site? Need Help?

All times are GMT. The time now is 12:36 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