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hello, last weeck i got the package and build up the converter... its working ;-) im using the unit only in balanced configuration so i did not install another ballse per channel. everything is connected like in this drawing (exept im using two legatos): http://www.twistedpearaudio.com/docs/digital/dualmono_BII+IVYIII.pdf her is the problem: if i compare to other dacs like the lavry or the benchmark this one got not enough gain. to integrate the buffalo in the studio i need to match follow specs: -18 dBFS digital input level produces a 0 dBu (775 mV / 0.775 V RMS) / 0dbFS digital input level produces a 18 dBu (6.15V RMS) is this posible? do i just have to change the R17-R20 to smaler values? thank you and greetings! Edited by user Thursday, January 19, 2012 4:12:32 AM(UTC)
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Rank: Administration
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Which version of legato are you using?
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Rank: Member
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Joined: 12/9/2011(UTC)
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Location: Germany
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Rank: Member
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Joined: 12/9/2011(UTC)
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Location: Germany
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or is it posible to build only a stereo configuration and get the balaced xlr output to the needed standard?
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Rank: Member
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okay now i messured that im missing 7,3 db of gain. is there a formular to calculate this level change? Edited by user Thursday, January 19, 2012 2:04:11 PM(UTC)
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Rank: Administration
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If you like you can double the output by changing R21-R24 to 10K
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i changed the mentioned resistors to 10k and got a gain boost of +5,82db now im still missing 1,46db of gain. is it okay to change R21-R24 to around 11k3 ? or is the better way to increase R1-R4 ? Edited by user Friday, January 20, 2012 3:38:51 AM(UTC)
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Rank: Administration
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Joined: 10/24/2006(UTC)
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Sure you can change R21-R24, you should understand the ratio now. :) I would not change R1-R4 in your case. Edited by user Friday, January 20, 2012 7:43:30 AM(UTC)
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