Unofficial Mackie User Forums > DL1608/DL806/DL32R/ProDX Mixers

IPod input with no effects applied

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Wynnd:
I've done that intentionally to remove the lead vocal in a song before.  Didn't think of that issue.  There is a polarity switch on each channel, so if this is the problem, He can probably change one channel's polarity and fix the issue.

r.welshjr:

--- Quote from: Wynnd on January 11, 2019, 08:11:34 PM ---Best way to verify that the channels aren't sending to the effects.  Go to the LR all channel display and then scroll sideways to channel 16.  Go to the top of the channel to select the channel's sends screen.  On that screen there is the trim control. Near the lower right, there are the reverb and delay sends.  You shouldn't be able to see any purple and the controls should be on the left end of that.   Otherwise, the effects were turned on for those channels and you can take the control, move it left until the purple is gone and the effects should be gone too.  Let us know if you're using a version of Master Fader older than 4.x

--- End quote ---
We did look at that, this is why I was looking to see if we were missing anything.


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r.welshjr:

--- Quote from: dpdan on January 11, 2019, 10:37:47 PM ---the mixer is not adding any effects to what you are hearing, the fact that you have a stereo 3.5mm plug connected to the device playing the music is fine but....
the other end is a "stereo" plug which is really called a TRS plug (tip, ring, sleeve) and that cable is reversing the phase of the two channels of music and combining them into a single input, therefore, eliminating all the center channel sounds like: kick-drum, bass, vocals, and anything else that is typically panned to the center when the music you are listening to was mixed. 

Using a cable wired like that can definitely fry the device's output amplifier, in other words, the output of the iPad, iPhone, iPod or Android phone can be ruined for life.

The correct way to connect a device that has a 3.5mm stereo output, is with a cable that has one 3.5mm male plug on one end, and two 1/4 inch (two conductor) (mono) male plugs on the other.
You should NOT use a Y cord to combine them together for one input. You need two separate inputs to do this correctly.
And, if you need to play music into one of the XLR inputs, you must have a direct box, preferably two.
Here is the cable you need,
https://www.ebay.com/itm/Hosa-3-ft-3-5mm-TRS-Stereo-to-Dual-1-4-TS-Mono-Breakout-Cable-Tip-Ring-Color/222173063126?hash=item33ba8be7d6:g:aKsAAOSwq8FbL5RB:sc:USPSFirstClass!63031!US!-1:rk:3:pf:0

--- End quote ---
As luck would have it I already purchased a cord exactly as pictured to see if that was the issue. You are giving me hope that Im on the right path. Thank you for the good input.


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Yorgaki1:
http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=143041261760&category=113484&pm=1&ds=0&t=1547266141777

Wynnd:
One more possibility.  Is your smartphone or tablet's microphone on and are you just getting a delay loop because of it?  Normally one would be putting headphones or earbuds in that connection, but an open microphone in those situations isn't a problem.  But going out to a PA system with loud speakers that becomes a sound source for the microphone which could feed the audio out of the tablet and the results would be a delay if the speakers are far away and FEEDBACK if the speakers are very close.  I always find myself having to turn the microphone off on my laptop when recording because of a similar type of issue.

Let us know what fixed your problem.

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