# MacBook audio to QC via USB **URL:** \ **Category:** Quad Cortex\ **Created:** [March 24, 2024, 10:05pm UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724 "2024-03-24T22:05:20Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![alanstevenson](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/alanstevenson/32/3812_2.png) [@alanstevenson](https://unity.neuraldsp.com/u/alanstevenson)\ **Post date:** [March 24, 2024, 10:05pm UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/1 "2024-03-24T22:05:20Z")
Hi sorry if this has been asked but searched and couldn’t see a method. I have my QC connected to my speaker monitors using TRS cables on QC output 3 & 4. I want to play along to Guitar Pro by outputting the MacBook Audio via USB into the QC which then gets sent to Outputs 3 & 4 so I can hear both my guitar and audio from MacBook Guitar Pro through my monitor speakers. How do I do this? In the I/O section I see USB 1/2 is receiving the MacBook sound but can’t see how to route it to outputs 3 & 4? In the grid can only add USB 5-8 not 1-4, so can’t add to grid and route to QC output 3&4. ---
**Author:** ![alanstevenson](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/alanstevenson/32/3812_2.png) [@alanstevenson](https://unity.neuraldsp.com/u/alanstevenson)\ **Post date:** [March 25, 2024, 9:42am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/3 "2024-03-25T09:42:49Z")
Brilliant thank you very much! Saves me buying XLR cables. ---
**Author:** ![Joel.jay](https://avatars.discourse-cdn.com/v4/letter/j/7c8e57/32.png) [@Joel.jay](https://unity.neuraldsp.com/u/Joel.jay)\ **Post date:** [May 23, 2025, 8:29am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/5 "2025-05-23T08:29:21Z")
Thanks for this, searched high and low for answer as I had the same issue, finally came across your simple explanation, thanks again !! ---
**Author:** ![SkylerMills](https://avatars.discourse-cdn.com/v4/letter/s/ecae2f/32.png) [@SkylerMills](https://unity.neuraldsp.com/u/SkylerMills)\ **Post date:** [June 29, 2025, 12:27am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/6 "2025-06-29T00:27:28Z")
THANK YOU, use spotlight and search midi if you can’t find audio/midi set up like me ---
**Author:** ![DC3Productions](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/dc3productions/32/10476_2.png) [@DC3Productions](https://unity.neuraldsp.com/u/DC3Productions)\ **Post date:** [June 6, 2026, 7:10pm UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/7 "2026-06-06T19:10:40Z")
Im having the same issue but the reply is hidden! ---
**Author:** ![Fatrucci](https://avatars.discourse-cdn.com/v4/letter/f/e5b9ba/32.png) [@Fatrucci](https://unity.neuraldsp.com/u/Fatrucci)\ **Post date:** [June 8, 2026, 10:47pm UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/8 "2026-06-08T22:47:22Z")
Why is there no answer? Has everyone just thanked the void? I’ve been looking for a solution to this ever since I joined QC, and I haven’t found one anywhere. So does that mean the solution to this problem is to do nothing about it? ---
**Author:** ![alanstevenson](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/alanstevenson/32/3812_2.png) [@alanstevenson](https://unity.neuraldsp.com/u/alanstevenson)\ **Post date:** [June 9, 2026, 7:53am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/9 "2026-06-09T07:53:20Z")
Hi I wrote the OP and I can no longer see the reply that fixed my issue either. Maybe the user has left the forum. I checked my emails to see if at the time I got an email of the reply as I have sometimes but can’t see it. I honestly can’t remember the response, I’ll check my settings on MacBook and let you guys know. ---
**Author:** ![alanstevenson](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/alanstevenson/32/3812_2.png) [@alanstevenson](https://unity.neuraldsp.com/u/alanstevenson)\ **Post date:** [June 9, 2026, 8:42am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/10 "2026-06-09T08:42:49Z")
I have dug through my settings and can see what I did. There are 2 steps, 1 for general MacBook Audio (mp3 player etc) to QC via TRS Out 3/4 and 2 Guitar Pro to Out 3/4. ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/6/6df586ef60ee8a42d3cfe0782835cfdcb0b72cbf.jpeg) Firstly search spotlight for Audio MIDI Setup. ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/b/b7e0472694bcd6c32818b58310b62e67b1f128be.jpeg) Next Add Quad Cortex on left. Sorry can’t remember if it is automatically added when connected or if I had to manually add on setup. You guys can try and let the others know. Now click on Configure on the bottom right. ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/f/f88f084320e8e1df2a2aa034794e7d1d0a370e85.jpeg) If it is Output 1/L and Output 2/L change to Output 3/L and Output 4/L as per image below and click Apply. ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/d/dc1f004f25ce8d2af0939a3d9fcd39cebd5a6bc7.jpeg) Now go to MacBook System setting like this: ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/9/9b8af618e65483fe6b595d38adad2c277a666b2e.jpeg) Change output to Quad Cortex. Try Apple Music or mp3 and it should now work. 2 Guitar Pro Go to Guitar Pro title bar and preferences and you should get the following: ![image](https://us1.discourse-cdn.com/flex020/uploads/neuraldsp/original/2X/3/3f0df781f5086195adffdf3097a44cc6fb378c16.jpeg) Change Audio output to Quad Cortex and select TRS output 3/4. let me know if this works or I have missed a step. ---
**Author:** ![Aviraleads](https://avatars.discourse-cdn.com/v4/letter/a/6f9a4e/32.png) [@Aviraleads](https://unity.neuraldsp.com/u/Aviraleads)\ **Post date:** [June 9, 2026, 8:36pm UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/11 "2026-06-09T20:36:46Z")
You da real 1 woof woof ---
**Author:** ![alanstevenson](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/alanstevenson/32/3812_2.png) [@alanstevenson](https://unity.neuraldsp.com/u/alanstevenson)\ **Post date:** [June 10, 2026, 7:07am UTC](https://unity.neuraldsp.com/t/macbook-audio-to-qc-via-usb/13724/12 "2026-06-10T07:07:33Z")
@Aviraleads 😂😂😂😂