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breweryfr  
#1 Posted : Tuesday, March 27, 2012 8:36:22 AM(UTC)
breweryfr

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Location: France

Hi,

Here is my setup:

2 x Buffalo & Legato 3.0 used in Stereo and SE Output
2 x Bipolar Power Supply / one for each Legato
1 x Power Supply for 2 Buffalo's DACs.
One multi-channel amplifier for bi-amping.
UserPostedImage

When the 2 Legatos are connected to the amp there is a noise, and disappear when only one Legato is connected.
Wiring analogue power supply ground together only reduce the noise - same for wiring analogue output ground.

What is your suggestion ?

Best Regards,
Alex.

Edited by user Tuesday, March 27, 2012 9:27:14 AM(UTC)  | Reason: Not specified

avr300  
#2 Posted : Tuesday, March 27, 2012 11:29:02 AM(UTC)
avr300

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Alex, what are you doing there ? Driving two Placid (DP+HD) with only one tranny ? That's a no-go.

Edited by user Tuesday, March 27, 2012 11:30:16 AM(UTC)  | Reason: Not specified

breweryfr  
#3 Posted : Tuesday, March 27, 2012 11:34:18 AM(UTC)
breweryfr

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Location: France

Yes AVR300, but an "oversized" 30VA.
A transformer with a 12-15VAC secondary rated at 15VA is enough for one Placid HD.

I tried to use it with an additional tranny and It works well. No more noise...


Thanks AVR300.

Edited by user Tuesday, April 3, 2012 12:03:43 PM(UTC)  | Reason: Not specified

avr300  
#4 Posted : Wednesday, April 4, 2012 10:55:07 AM(UTC)
avr300

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You're welcome..

Edited by user Wednesday, April 4, 2012 10:55:46 AM(UTC)  | Reason: Not specified

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