CQ18T with mono mains

CQ CQ General Discussions
1

I’m thinking of setting up a CQ-18T with a single active speaker for the hall.

  1. Is there any way to sum the MainLR to a single output?
  2. If not is it better to pan MainLR hard left or leave it central?
    Thanks in advance,
2

Why not use an AUX out this already mono ?

3

That’s a possibility but we may need those for foldback and other outs, hence the specific questions.

4

Is there an Headphone out free ?

5

You could use a simple “Line Combiner”, such as this one:

Alternatively, you could also make (or have made) a special Y-cable where you insert a resistor >= 1kOhm into each of the two hot lines.

6

Thanks SQUser. That’s my way to go.

7

Why will you do all this?

If you are not using stereo inputs, it doesn’t matter. Set the pan of all inputs neutral to center and you’ll be fine.
If you are using a stereo input, the pan will be on the side you use for mono out.

I do this almost every week at small gigs when I only have one Bose L1

Rx Thomas

8

Thanks Thomas, that answers my question!?

9

I bought a balanced mono summing Y cable with resistors from Jon.
Works great and I don’t have to worry about forgetting to pan channels.

http://micmodkits.com/other/

10

Hi Thomas
It sounds like I have a similar setup to you, but I’ve not got as much experience of using it.
I’ve read different things about the LR output (e.g. plan hard left, use a summing cable), but I think leaving things centred and just using L(out) seems to be an equally popular and workable option.
My question is about which input on the Bose L1 you are using. Do you think it’s better to use one of the main XLR inputs or the Aux input using TRS? Again I’ve read different advice on the internet, but I wondered if you had a definite view based on your experience of using it every week. I have the L1 Pro16 model.
Thanks,
Roger.

11

This topic was recently discussed in this forum and that’s why I know:
The Bose inputs 1 and 2 are so sensitive that you can connect a dynamic microphone or a passive instrument to them - so they are unsuitable for the line level of a mixer.
Only the input 3 AUX is intended for this.

12

Thank you. This ‘reduced sensitivity’ might also help reduce some of the feedback issues I’ve encountered.