# QC with GFI Synesthesia

**URL:** <https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448>\
**Category:** Quad Cortex\
**Tags:** quad-cortex, support\
**Created:** [November 6, 2023, 4:36pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448 "2023-11-06T16:36:22Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Carnagiac](https://avatars.discourse-cdn.com/v4/letter/c/c6cbf5/32.png) [@Carnagiac](https://unity.neuraldsp.com/u/Carnagiac)\
**Post date:** [November 6, 2023, 4:36pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448/1 "2023-11-06T16:36:22Z")

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I’ve exhausted all possibilities (that I know) to use a one-in/2/out Synesthesia with the QC. The sound always ends up with everything being in mono. Suggestions?  
Thank you.

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**Author:** ![DiffractionCircuit](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/diffractioncircuit/32/3793_2.png) [@DiffractionCircuit](https://unity.neuraldsp.com/u/DiffractionCircuit)\
**Post date:** [November 6, 2023, 4:55pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448/2 "2023-11-06T16:55:08Z")

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Need more info. What are you trying to achieve with it? (I’m assuming you want stereo…) Are you using one or both of the FX loops…?

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**Author:** ![xush](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/xush/32/5100_2.png) [@xush](https://unity.neuraldsp.com/u/xush)\
**Post date:** [November 6, 2023, 6:05pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448/3 "2023-11-06T18:05:41Z")

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you have the switch set to ‘stereo out’ and not ‘pre/post’ on the Syn?  
Connect 1/4 cable from QC Send 1 to Syn input.  
Connect 1/4 cables from QC Returns (both) to Syn Outputs. You must connect both for stereo operation, the QC jacks are mono.

Add FX Loop 1/2 block as the last item on your grid and you should be getting a stereo feed. You will need to monitor by headphones or a pair of Outputs to monitors, etc. A single Output on the grid will sum your signal to mono. A mono effect block on the grid AFTER the FX Loop block will also collapse it to mono

> **[Setups : Stereo Out And Pre/Post - GFI System...](https://www.manualslib.com/manual/2023863/Gfi-System-Synesthesia.html?page=12#manual)**
>
> GFI System Synesthesia Manual Online: Setups : Stereo Out And Pre/Post.   There are two ways Synesthesia can be used : ...

This is just the simplest way to configure a test; there are LOTS of other ways to insert it on the grid once you’ve determined you are getting a stereo signal

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<div class="post-metadata">

**Author:** ![Carnagiac](https://avatars.discourse-cdn.com/v4/letter/c/c6cbf5/32.png) [@Carnagiac](https://unity.neuraldsp.com/u/Carnagiac)\
**Post date:** [November 6, 2023, 9:13pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448/4 "2023-11-06T21:13:33Z")

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Thank you for your reply! The problem has been solved. I had the fx loop before the amp. Simply moving it after the amp fixed the problem.

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<div class="post-metadata">

**Author:** ![Carnagiac](https://avatars.discourse-cdn.com/v4/letter/c/c6cbf5/32.png) [@Carnagiac](https://unity.neuraldsp.com/u/Carnagiac)\
**Post date:** [November 6, 2023, 9:15pm UTC](https://unity.neuraldsp.com/t/qc-with-gfi-synesthesia/12448/5 "2023-11-06T21:15:26Z")

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You get the chicken dinner! I had the fx loop before the amp. I never thought of lthat. I guess I thought the amp was stereo. I worked on this for 2 days and couldn’t figure it out.