# QU24 Mic vs Line level connections

**URL:** <https://forums.allen-heath.com/t/qu24-mic-vs-line-level-connections/14027>\
**Category:** Qu General Discussions\
**Created:** [21 November 2023 08:31 UTC](https://forums.allen-heath.com/t/qu24-mic-vs-line-level-connections/14027 "2023-11-21T08:31:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hansdnl](https://avatars.discourse-cdn.com/v4/letter/h/9f8e36/32.png) [@hansdnl](https://forums.allen-heath.com/u/hansdnl)\
**Post date:** [21 November 2023 08:31 UTC](https://forums.allen-heath.com/t/qu24-mic-vs-line-level-connections/14027/1 "2023-11-21T08:31:58Z")

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Hello all, newbie here.

I once a month mix at a location that has an QU24. All connections are made via an analog snake which is located close to the stage and where the speaker processors & amplifiers are.

Most nights there is (also) a DJ playing using a Xone92/96 or Pioneer DJM series mixer.

The way the DJ mixer is connected to the QU24 (via the analog snake) is simply 2 channels on XLR coming in from the DJ mixer master outputs.  
The 2 channels on the QU24 are connected to the mic XLR input sockets the same way you would do on a SQ5 as the SQ5 doesn’t care about mic vs line levels and there also is a pad switch in the gain stage as I remember correctly.

But the QU24 has separate 1/4 jack line inputs. Are they just for convenience of connecting things and parallel to the mic inputs or do I have to use them for line level signals? (impedance and sensitivity different?)  
I can’t seem to find my answer in the manual…

Thanks/Cheers

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**Author:** ![Keith](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/keith/32/2852_2.png) [@Keith](https://forums.allen-heath.com/u/Keith)\
**Post date:** [21 November 2023 09:54 UTC](https://forums.allen-heath.com/t/qu24-mic-vs-line-level-connections/14027/2 "2023-11-21T09:54:49Z")

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@HansdNL

The TRS 1/4" Jack inputs on the Qu series are for line level signal - they include a fixed pad and prevent phantom power being inadvertently being sent to the outputs of the connected device.  
[https://www.allen-heath.com/content/uploads/2023/06/Qu-Mixer-Reference-Guide-AP9372\_10.pdf#page=13&zoom=auto,-274,425](https://www.allen-heath.com/content/uploads/2023/06/Qu-Mixer-Reference-Guide-AP9372_10.pdf#page=13&zoom=auto,-274,425)

For the setup you describe, it would be best to avoid switching connections around by simply using a DI box (or two) at the stage.

Cheers,  
Keith.