Mono in headphones?

[Peter Richter]

I just got a DL806.
Most of it works quite well.
The only issue I have is that the headphones are in mono - even on the stereo buss when all PFLs are off.
The headphones work fine on other devices

I suspect it might be in the firmware but I had never experienced the previous versions as I only just bought it and had to update both the iPad and the mixer to the latest.
I am in contact with service but was Just wondering if anyone else has experienced this?

[WK154]

Congratulations you're the first owner of a DL806 on this forum AFAIK. Welcome! As to your problem since you only have half a DL1608 it is befitting that you only have mono in the headphone (just kidding). Add this to the list of fixes Mackie needs to attend to. If there is someone else with a DL806 please step forward. I trust that they are pushed in all the way and your converter is stereo.

[Peter Richter]

thanks WK (you mind if I call you WK?)
Yeah - definately pushed in all the way.
I'm wondering if they both use the same firmware that maybe it would happen in 1608 too?

It would be good though if any 806 users could check it out

[WK154]

No problem with WK. I suspect you'll be our resident DL806 go to person. No problem with the DL1608 on stereo headset. The troops would have been all over that, but I rechecked and all is well. Could be a defective connector on your DL.

[Wynnd]

The other possibility is that all the channels are centered on the output.  If you're not panning something, it will sound like mono, but in reality will be stereo with an identical mix on each channel.  (At which point, it might as well be mono.)  Hopefully, that is your only problem.

[Peter Richter]

Unfortunately not that either.
Have had definate stereo signals such as iPad channel, music fed into two adjacent channels, panned hard L and R, and also the stereo effects sound mono.

All suggestions welcome though.

[Peter Richter]

The other thing is that. The xlr outputs are working properly in stereo. Its just the headphones output that is mono.

[WK154]

To be sure all internal signals (buses) are just ring buffers (one would hope) until those values are transferred to the D/A chips. It is certainly possible to send the same data to both D/A for the headphones only I just don't see any reason to change the code for just the DL806 since it should be the same for the DL1608. Does the headphone track the mains meters? Panning the input channel with lets say a 1K signal? I use a Pink stick for test.

[Peter Richter]

When I pan an input signal left and right the L and R output meters show it panning.
Same if i pan the output.
The actual L and R outputs also pan but the headphones remain mono - same coming through both sides except the level is lower when panned towards one side or the other.

[WK154]

Time for an exchange from Mackie.

[Wynnd]

I just looked up the block diagram for the DL806.  The headphones are supposed to be stereo, a full replication of the LR output in stereo.  Something is wrong with your mixer.   (That's what warranties are for.)  Mackie handled my warranty situation very well.  Hope they do the same with you.

[Peter Richter]

Thank you to all contributors.
The tech guys at mackie seemed to agree that it was hardware.
I took it back to the local retailer and they have organised a replacement,which is in the mail right now.

[Wynnd]

Great news.