Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login


Options
View
Go to last post Go to first unread
kni  
#1 Posted : Saturday, May 29, 2010 4:48:32 AM(UTC)
kni

Rank: Member

Groups: Member
Joined: 5/29/2010(UTC)
Posts: 6

As I understand it, a differential output provides two signals of opposite polarity to each other. Ballsie Lite uses the two signals as the input and outputs one signal. The output signal should help to achieve "slightly better dynamic range" than using just one of the original signals. How come? Think Could anyone elaborate on this for me please?

The Ballsie Lite seems to be available with either LM4562MA/LME49720MA or OPA2227PA. Are there any reasons to favour one over the other?
kni  
#2 Posted : Saturday, May 29, 2010 5:00:23 AM(UTC)
kni

Rank: Member

Groups: Member
Joined: 5/29/2010(UTC)
Posts: 6

The "slightly better dynamic range" part of the text was quoted from the Buffalo32s user manual. The benefit might be specific to that application. Is it?
Russ White  
#3 Posted : Saturday, May 29, 2010 8:26:03 AM(UTC)
Russ White

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN

Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
It basically applies to any differential signal.

Most differential signals carry at least some common mode distortion component (though in this case it will be minuscule). Using a differential amplifier basically eliminates most of that through common mode rejection. The reult is the difference of the two signal minus the common mode components.

IVY III - Includes this cct. It is only required where you don't already have BAL/SE conversion.

Edited by user Saturday, May 29, 2010 8:32:03 AM(UTC)  | Reason: Not specified

Brian Donegan  
#4 Posted : Saturday, May 29, 2010 4:52:42 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,865
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 138 time(s) in 133 post(s)
I will add that, ideally, you would not do your Balanced->SE conversion until the last component (amplifier typically) so that you maintain the balanced connections as far as possibly, for the lowest possible noise. One reason the Ballsie Lite is so small is so it can be integrated into other components.
marcinpoz1qaz  
#5 Posted : Wednesday, August 10, 2011 1:14:38 PM(UTC)
marcinpoz1qaz

Rank: Member

Groups: Member
Joined: 8/6/2011(UTC)
Posts: 9
Location: Poland

Hello,
I buy Buffalo III.
I need only single ended outputs - next stage is tube preamplifier with input impedance at 100kOhm.

Which module i need between: Legato or only Ballsie?
Audiblesoundwave  
#6 Posted : Wednesday, August 10, 2011 5:09:39 PM(UTC)
Audiblesoundwave

Rank: Advanced Member

Groups: Member
Joined: 8/3/2010(UTC)
Posts: 68
United States
Location: S.F. Bay Area, CA

You'll need either Legato 3.1 or IVY III! Ballsie is already built into both.

Good luck,
Milton
Rss Feed  Atom Feed
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.