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Thread: Soundcraft 200 series (frustrating)

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    Soundcraft 200 series (frustrating)

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    I've got a soundcraft 200 series, it's not the 200b or the 200sr or the delta and there is virtually no info on this exact model though it is very similar to the others. The 200b is pin 3 hot and the 200sr is supposedly pin 2 hot (or maybe the other way around). The other decks are supposed to run at +4 but I've discovered that my Tascam has a louder output than this does. Also the meters on this are getting pegged while the Ampex is getting a very low meter reading. The Ampex is right, because I've been using it with other gear. I know that some of these are supposed to have switches where you can switch between -10 and +4, I looked inside to see if it had been changed and I found no such switch inside. Also I can't tell which pin is wired to which because the jacks are enclosed in a box.

    Does anyone know anything about these boards? Would having the pins swapped actually make the output lower even though it seems to sound fine?
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    Quote Originally Posted by SteveM View Post
    I've got a soundcraft 200 series, it's not the 200b or the 200sr or the delta and there is virtually no info on this exact model though it is very similar to the others. The 200b is pin 3 hot and the 200sr is supposedly pin 2 hot (or maybe the other way around). The other decks are supposed to run at +4 but I've discovered that my Tascam has a louder output than this does. Also the meters on this are getting pegged while the Ampex is getting a very low meter reading. The Ampex is right, because I've been using it with other gear. I know that some of these are supposed to have switches where you can switch between -10 and +4, I looked inside to see if it had been changed and I found no such switch inside. Also I can't tell which pin is wired to which because the jacks are enclosed in a box.

    Does anyone know anything about these boards? Would having the pins swapped actually make the output lower even though it seems to sound fine?
    Hey Steve I think I have one of those way in the back of the shop I'll take a look and report back to you ... in fact I think that I may have the manual in the case as well!
    From what I remember is that they are switched but if that's the case you wouldn't get any signal.







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    Quote Originally Posted by moresound View Post
    Hey Steve I think I have one of those way in the back of the shop I'll take a look and report back to you ... in fact I think that I may have the manual in the case as well!
    From what I remember is that they are switched but if that's the case you wouldn't get any signal.






    Thanks Moresound. I thought both hot and cold carried the same signal? I'm still always confused about that though. Let me know what you have. This one looks almost exactly like the popular models but the PDF's of both that I saw does not exactly describe this one. Strange.
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    Quote Originally Posted by SteveM View Post
    Thanks Moresound. I thought both hot and cold carried the same signal? I'm still always confused about that though. Let me know what you have. This one looks almost exactly like the popular models but the PDF's of both that I saw does not exactly describe this one. Strange.
    ?







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    Yes, a balanced signal carries the same signal on the hot and cold legs, they are just 180 degrees out of phase...correct that if there is a pin 3/pin 2 hot disparity when connecting a balanced output to an unbalanced input there will be no signal, so that is not your problem.

    Steve, there is also the possibility that the Soundcraft is neither +4dBu OR -10dBv nominal, but 0dBu...also there is a possibility that there is an internal jumper for output level (soldered staple jumper or jumper plug).

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    Steve, what happens if you use the "PHONES" output on the Ampex electronics as your output instead of the "OUTPUT" jacks on the back? The "PHONES" jack is unbalanced pre-output tranny. It is tapped prior to the output step-up transformer and will be about -7dB nominal below +4dBu or +8dBu (depending on how you have your outputs strapped...I'm assuming +4dBu).

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    Quote Originally Posted by sweetbeats View Post
    Steve, what happens if you use the "PHONES" output on the Ampex electronics as your output instead of the "OUTPUT" jacks on the back? The "PHONES" jack is unbalanced pre-output tranny. It is tapped prior to the output step-up transformer and will be about -7dB nominal below +4dBu or +8dBu (depending on how you have your outputs strapped...I'm assuming +4dBu).
    Hey Cory, I use the LA 4 for going out to the Tascam, I'm not using the Soundcraft for summing, but that is a good idea with the phones. The problem is actually when I'm going IN to the Ampex. I have a couple other preamps that I go direct into the Ampex with, the levels are all good. but using the soundcraft group outs, the level is low, even though the meters reading the output are pegged in the soundcraft. This series are all supposed to be balanced +4 ins/outs, though I can't find the manual for this exact one. The others have the same exact channels strips and chassis.

    It mentions in the other manuals, jumpers in the channels and internal switches on the group outputs, to switch between -10 and +4 but the schematics or info for where the jumpers are located can't be found in any manual.

    So I guess this is wired then like the Ampex, pin 2 hot?
    Last edited by SteveM; 11-26-2010 at 06:47.
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    So I've discovered the main L & R outputs have the correct +4 output volume. The 1-4 sub groups are supposed to too, but it's still a mystery as to why they don't or how to change it back.

    I guess I'll call soundcraft. Though I've heard they aren't very helpful with this. In the meantime I can use the left and right mains as group outs. It's the same thing I guess. The main reason I bought this was for the group outs. I'm basically just using it to sum drum mics.
    Last edited by SteveM; 11-26-2010 at 10:52.
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    The Ampex should be pin 3 hot, and depending on the age of the Soundcraft I'd guess it to be pin 3 hot too.

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    here's alink to a good site for analog consoles... mostly high end but i think you may find the schemo in a sticky there... i love this site... i can chat with the guy that designed my series 500... way cool...

    http://forum.analogconsole.com/
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    hey give a guy some room... people are trying to evolve here... for crying out loud...

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