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Dual-Mono - How to Connect up Ballsies for Single-ended use Please! (help...)
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suffolk tony  
#1 Posted : Wednesday, August 17, 2011 5:02:44 AM(UTC)
suffolk tony

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Sorry not to tag this on my Dual-Mono posts but I'm now rather stuck on something I thought I'd grasped.

I've built up to the stage where I'm just completing the final wiring-up, but I really don't understand how to connect up the inputs of the twin Ballsie Lites I've got. I've tried to grasp Leon's connection diagram that uses two Ivys into balanced outputs but how this all translates to what I want to do is beyond my very limited knowledge I'm afraid. Balanced connections aren't something I'm at all familiar with, which doesn't help.

All practical advice very gratefully received!
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LeonvB  
#2 Posted : Wednesday, August 17, 2011 9:57:46 AM(UTC)
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Balanced is fairly simple: you have +, GND and -.

So from the diagram you wire it like this on one Ballsie, use either side:
On the left channel IVY: connect L_SE to IN+, and connect R_SE to IN-. GND of course goes to GND.

And on the other Ballsie, doesn't matter on what side:
On the right channel IVY: connect R_SE to IN+, and connect L_SE to IN-. GND also goes to GND.

Note: OUT and the other GND on the connector block give you the SE output.
And of course you'll want to power the Ballsies with from the Placid BP of their respective sides.
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suffolk tony  
#3 Posted : Wednesday, August 17, 2011 11:13:35 AM(UTC)
suffolk tony

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Many thanks again Leon. When I thought about it for a while longer I got the gist of it, but without someone's confirmation I was loathe to proceed further. Forgot to mention I'm using Legatos but I can see they'd be the same. I'll be in the position to try everything out tomorrow. I'm excited!
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suffolk tony  
#4 Posted : Wednesday, August 17, 2011 2:22:20 PM(UTC)
suffolk tony

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Sorry, forgot to ask - presumably I need to add jumpers across R9 & R10 on the Ballsies ?
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LeonvB  
#5 Posted : Thursday, August 18, 2011 9:59:47 AM(UTC)
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No, R9 and R10 are resistors and included in the package (at least with me). If they're not included with yours I'd contact Brian to ask him if it's a pick error or a change in the module.
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Russ White  
#6 Posted : Thursday, August 18, 2011 4:33:32 PM(UTC)
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If you don't have them they can be jumpered, or any resistor from 2-21R would be fine.
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