# Routing USB 1/2 to headphones? **URL:** \ **Category:** Quad Cortex\ **Created:** [September 20, 2021, 7:07pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610 "2021-09-20T19:07:20Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![spray](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@spray](https://unity.neuraldsp.com/u/spray)\ **Post date:** [September 20, 2021, 7:07pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/1 "2021-09-20T19:07:20Z")
I’m probably just too stupid, but I can’t figure out how to hook up the QC correctly to my macbook to get spotify on the headphones. I connected the QC via USB and I selected it as the output device in the system preferences. Unfortunately I can’t choose the channel and it defaults to 1/2. Now 1/2 automatically go to Out 1/2 and the QC and I can’t route 1/2 to the headphones, that will output out 3/4. Is there a way to make either the default sound on the mac go to 3/4 OR (preferrably) route 1/2 to the headphones on the QC? This behaviour is kind of silly. ---
**Author:** ![MP\_Mod](https://avatars.discourse-cdn.com/v4/letter/m/ccd318/32.png) [@MP\_Mod](https://unity.neuraldsp.com/u/MP_Mod)\ **Post date:** [September 20, 2021, 7:59pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/2 "2021-09-20T19:59:27Z")
You probably require a DAW just like any other multiple routing device. At least on PC that is the case but maybe there is a ASIO type app for MAC that adds routing for multiple outputs. ---
**Author:** ![hasse\_fx](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/hasse_fx/32/1368_2.png) [@hasse\_fx](https://unity.neuraldsp.com/u/hasse_fx)\ **Post date:** [September 20, 2021, 8:36pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/3 "2021-09-20T20:36:51Z")
Is the volume knob turned up? Have you opened the Headphone mixer (swipe down for the output page and “click” the headphone input)? With USB connected, I get the Mac default audio straight through on the left mix knob plus the the guitar with all FX on the right knob. Perfect for practice. ---
**Author:** ![M\_NDSP](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/m_ndsp/32/2281_2.png) [@M\_NDSP](https://unity.neuraldsp.com/u/M_NDSP)\ **Post date:** [September 20, 2021, 10:46pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/4 "2021-09-20T22:46:38Z")
@spray - Sorry you’re having trouble. Please reach out to [support@neuraldsp.com](mailto:support@neuraldsp.com) and they can help you trouble shoot. ---
**Author:** ![spray](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@spray](https://unity.neuraldsp.com/u/spray)\ **Post date:** [September 20, 2021, 11:02pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/5 "2021-09-20T23:02:05Z")
It’s pretty weird. I found the place in the mac settings where I can set up the output channels. I switched to 3/4 and that worked, but shortly after I had a weird sound. Turned out I was getting only the right channel, but to both ears. Then a little bit later I got no sound from USB at all. I had to switch the mac to send on 1/2 again and now it works like I would have expected from the get go. But that made me really nervous about using the qc live… ---
**Author:** ![Gonzalo](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/gonzalo/32/165_2.png) [@Gonzalo](https://unity.neuraldsp.com/u/Gonzalo)\ **Post date:** [September 20, 2021, 11:32pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/6 "2021-09-20T23:32:50Z")
Hey @spray. As Mike already suggested, please send us a ticket to [support@neuraldsp.com](mailto:support@neuraldsp.com) so we can troubleshoot these issues. Thanks! ---
**Author:** ![spray](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@spray](https://unity.neuraldsp.com/u/spray)\ **Post date:** [September 22, 2021, 6:30am UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/7 "2021-09-22T06:30:30Z")
I would, but I can’t reproduce it. Just for clarification is there any feature that I don’t know of and might have triggered accidentally where we can select which usb channel is routed to the headphones? ---
**Author:** ![Gonzalo](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/gonzalo/32/165_2.png) [@Gonzalo](https://unity.neuraldsp.com/u/Gonzalo)\ **Post date:** [September 22, 2021, 5:26pm UTC](https://unity.neuraldsp.com/t/routing-usb-1-2-to-headphones/5610/8 "2021-09-22T17:26:14Z")
@spray Not really. If the QC is set as the default audio device, you will always hear the computer audio through Out 1/2 and Headphone out.