quick question about Behringer DCX2496 - Page 2

Pano · 4th February 2013, 02:41 PM

At least 6dB (50%) maybe more. Do your amps have volume controls? If so, you can do it there.

oldies · 4th February 2013, 02:49 PM

Quote:

Originally Posted by Pano

At least 6dB (50%) maybe more. Do your amps have volume controls? If so, you can do it there.

my amps have volume control. I also have ALPS pots. could I use them?

Pano · 4th February 2013, 03:03 PM

If your amps have volume control then you're good. That's where you should do the level control for the individual sections. You set the amp volume control for each section (low, mid, high) so that the DCX is running close to full range and the speaker sections are balanced for sound levels.

tomtom · 4th February 2013, 03:46 PM

I think confusion is from fact that there is very unusual way to use XLR as stereo connector in unbalanced mode. If you google on XLR to RCA one of first picture you get is this one. People who is not familiar with XLR can be confused.

So for oldie. When is XLR connected as standard mono balanced signal /as on DCX/

There is 1 which is ground 2 and 3 which is same signal just with reversed polarity. This is why it is called balanced. All hums you get on way is added with opposed polarity and subtracted to zero at the end. /very simple explanation/

So connect 1 to ground take 2 to signal to RCA. If you want to attenuate signal. Exact values depend on input impedance of you AMP. But i think is save to connect 1k in series with signal and then try 500, 200, 100, 50 ohm paralel to ground. Do it in RCA connector /on amp side/

Pano · 5th February 2013, 02:30 AM

1K in series seems a bit low. What's the output impedance? 160 ohms, I think.

Davey · 5th February 2013, 03:03 AM

When fabricating a cable/adaptor for the DCX outputs, don't connect pin 3 to the RCA body. Leave it unconnected from anything. The DCX output stage senses a pin 1/3 connection and increases gain by 6db. You don't want/need that.

Cheers,

Dave.

4th February 2013, 02:41 PM	#11
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	At least 6dB (50%) maybe more. Do your amps have volume controls? If so, you can do it there. __________________ Take the Speaker Voltage Test!

4th February 2013, 03:03 PM	#13
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	If your amps have volume control then you're good. That's where you should do the level control for the individual sections. You set the amp volume control for each section (low, mid, high) so that the DCX is running close to full range and the speaker sections are balanced for sound levels. __________________ Take the Speaker Voltage Test!

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4th February 2013, 03:46 PM	#14
tomtom diyAudio Member Join Date: Dec 2006	I think confusion is from fact that there is very unusual way to use XLR as stereo connector in unbalanced mode. If you google on XLR to RCA one of first picture you get is this one. People who is not familiar with XLR can be confused. So for oldie. When is XLR connected as standard mono balanced signal /as on DCX/ There is 1 which is ground 2 and 3 which is same signal just with reversed polarity. This is why it is called balanced. All hums you get on way is added with opposed polarity and subtracted to zero at the end. /very simple explanation/ So connect 1 to ground take 2 to signal to RCA. If you want to attenuate signal. Exact values depend on input impedance of you AMP. But i think is save to connect 1k in series with signal and then try 500, 200, 100, 50 ohm paralel to ground. Do it in RCA connector /on amp side/

5th February 2013, 02:30 AM	#15
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	1K in series seems a bit low. What's the output impedance? 160 ohms, I think.

5th February 2013, 03:03 AM	#16
Davey diyAudio Member Join Date: Dec 2001 Location: Bremerton, WA.	When fabricating a cable/adaptor for the DCX outputs, don't connect pin 3 to the RCA body. Leave it unconnected from anything. The DCX output stage senses a pin 1/3 connection and increases gain by 6db. You don't want/need that. Cheers, Dave.