Hello!
So far very happy with my CQ18T, it’s a huge leap up from my previous hardware.
I’m a drummer, and one of the reasons for buying the CQ18T was that i wanted to listen to music while playing along, with all of it coming through my in-ears for practice.
But I’m having an issue when my headphones are in the front headphone jack (A/B). I’m able to hear the Bluetooth perfectly, but there are no drums.
I tried switching it around and putting my headphones in the Out-1 channel, then i could hear all of it, but the sound of the Bluetooth got weird. It lost Presence and had a strange stereo effect on it.
I hope there’s help to get 
JM_Drums
Just check the setting of your headphone output to be on MAINLR, in CONFIG, OUTPUT tab.
I did switch it around, but at MAINLR i never could hear my drums for some reason…
What kinda drum is it and how is it plugged into the CQ ?
It’s a full kit, with 8 mics plugged into the mixer (Kick, Snare, etc.)
do you have your inputs set to analog?
Have you adjusted the gain on each input?
are you seeing metering on the inputs when you play?
are the faders up?
The analog thing i gotta have a look into.
The inputs should be adjusted correctly as i can hear all my drums when i put my headphones in the Out-1 Channel.
Yes, I am seeing metering 
And the faders are up 
Out Channels are Mono! TRS is here for symetric transmission not for Stereo. that could be the reason, your bluetooth sound get weird.