440 Forums > Clock Noise On Motu 2408 Mkll

mcevill1

Friday 18 January 2013 à 23:47

Hi folks, I am having some noise problems. I am using 2 Behringer 8 channel preamps into a 2408MKll via ADAT. I have gone to the MOTU audio setup window and set the time code to Bank B optical. I am using bank A as analog. It doesn't matter if I set it for Bank B or C I am getting a timed noise when record is enabled in DP. It is like an intermittent white noise. If I have it set on Bank C the noise is on Bank B. It doesn't have much of a signal but it still cannot be there. Any help with this problem would be greatly appreciated. Thank, Jim

G5 dual core 2Ghz, OSX 10.5.8,Power PC processors, DP 4.11, 2408mk11, ADA8000 preamps, DBX compressors.

houstonmusic

Saturday 19 January 2013 à 16:36

interesting. so, have you tried clocking the preamp from the 2408mkII? at a guess, the behringer's clock isn't stable.
good luck with this one.

QUOTE (mcevill1 @ Fri 18 Jan 2013, 15:47)

Hi folks, I am having some noise problems. I am using 2 Behringer 8 channel preamps into a 2408MKll via ADAT. I have gone to the MOTU audio setup window and set the time code to Bank B optical. I am using bank A as analog. It doesn't matter if I set it for Bank B or C I am getting a timed noise when record is enabled in DP. It is like an intermittent white noise. If I have it set on Bank C the noise is on Bank B. It doesn't have much of a signal but it still cannot be there. Any help with this problem would be greatly appreciated. Thank, Jim

G5 dual core 2Ghz, OSX 10.5.8,Power PC processors, DP 4.11, 2408mk11, ADA8000 preamps, DBX compressors.

CyrilBlanc

Sunday 20 January 2013 à 06:32

did you liked the clocks of your devices with a BNC cable ?

http://www.stagecraft.co.uk/wp-content/upl...5/BNC-Cable.jpg

mcevill1

Sunday 20 January 2013 à 08:14

QUOTE (CyrilBlanc @ Sun 20 Jan 2013, 00:32)

did you liked the clocks of your devices with a BNC cable ?

http://www.stagecraft.co.uk/wp-content/upl...5/BNC-Cable.jpg

I did try that and it made no deference. Thanks for the suggestion. Peace

QUOTE (houstonmusic @ Sat 19 Jan 2013, 10:36)

interesting. so, have you tried clocking the preamp from the 2408mkII? at a guess, the behringer's clock isn't stable.
good luck with this one.

I have tried it with one of them but there is only one BNC input on the 2408

QUOTE (mcevill1 @ Fri 18 Jan 2013, 15:47)

Hi folks, I am having some noise problems. I am using 2 Behringer 8 channel preamps into a 2408MKll via ADAT. I have gone to the MOTU audio setup window and set the time code to Bank B optical. I am using bank A as analog. It doesn't matter if I set it for Bank B or C I am getting a timed noise when record is enabled in DP. It is like an intermittent white noise. If I have it set on Bank C the noise is on Bank B. It doesn't have much of a signal but it still cannot be there. Any help with this problem would be greatly appreciated. Thank, Jim

G5 dual core 2Ghz, OSX 10.5.8,Power PC processors, DP 4.11, 2408mk11, ADA8000 preamps, DBX compressors.

CyrilBlanc

Sunday 20 January 2013 à 11:41

QUOTE (mcevill1 @ Sun 20 Jan 2013, 08:14)

QUOTE (CyrilBlanc @ Sun 20 Jan 2013, 00:32)

did you liked the clocks of your devices with a BNC cable ?

http://www.stagecraft.co.uk/wp-content/upl...5/BNC-Cable.jpg

I did try that and it made no deference. Thanks for the suggestion. Peace

You also have to set who is the master and who is the slave