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Using 4CM with HX and sending Cab sim to PA


scottwilliams
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Hi - mostly trying to confirm I'm doing this the 'best' way:

 

I am using 4CM with HX stomp and tube amp w/ FX loop.  I am able to have wah/gain pedals before HX and time-based in the FX loop of the amp, and using an FXLOOP block in HX to switch between the tube amp and an HX preamp model.  This all is working very nicely.

 

I am using a Y-split just before the end of the HX path that splits off to a cab model and then goes back to the main L/R out at the end of the HX path.  I have the "A" side of the Y split panned 100% Left (which goes to the cab model) and the "B" side of the split panned 100% Right (that goes to the return on the tube amp FX loop.  If I run separate 1/4" cables from the L and R outs on HX, the Left sends cab sim out to PA (and amp does not get cab sim)  All works great, except: 

 

the HX output to PA seems really low compared to similar helix patches - is that because the Ysplit effectively halves the volume to each output?  

 

Also, when using the USB from the hx to connect to logic, that signal is also very low compared to running similar helix patch to DAW via USB.  is there always a difference in the output from HX and Helix, or is this potentially also because the Y split is involved?

 

Hope that makes sense.  Thanks!

 

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Instead of using the MAIN Outs for both, pull down the MIX Block to create a separate path.

Using a shielded TS cable (guitar type cable), take the SEND to the board.

In Global Settings>Ins/Outs set SEND/RETURN L to LINE.

This allows you separate LEVEL controls at the CAB (+6db) and the SEND (+20db).

Example preset attached.

 

Since the SEND is UNBALANCED, you'll likely want to use a DI box if the board is more than 20' away to minimize noise. This one is $15. I have two and they work fine:

 

https://www.amazon.com/Pyle-PDC21-Pyle-Pro-Black/dp/B0027V760M/ref=sr_1_2?crid=3JXPKSJV21KGZ&dib=eyJ2IjoiMSJ9.oosI4dUQ46miDAVf26FUFN36I7jLPYxpQx-RcddKesrEi2yrZS6qyEZp3c-o1478TyC1ZzRAuhrspUicTgyOca_h6Rm6KmWrqbTo3z-Cw6W6vVcY0KbqKpmhqqQ5pJOPTNEpXZG16FbZn5knusC9uWqGfNgAOZedqHdst41oI2tshF0jcCoAAZJmYJNZtYADvkKUUyiSoIQfnQXRqRpZhKzkQYP_ROpX0KLznhFD3HWnzvrM9cf7N8__tj-TV6qbYhTikysEMoPrQgjzZfI6qHmneTnajzU4UvtLYekZcmCmxO1vuUm5VNGHOQWQ51Wq-4K6RWXWSWcqR-v0C_JLL2x_U119gSMkuugo2zDwHqs.xfZ4uwuuEnjgGF07R6xLc2TmqfKy1CrDDI-Lbtn4f0U&dib_tag=se&keywords=di+box&qid=1742407434&s=musical-instruments&sprefix=di+box%2Cmi%2C266&sr=1-2

 

 

ScottW.hlx

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On 3/19/2025 at 11:39 AM, scottwilliams said:

Also, when using the USB from the hx to connect to logic, that signal is also very low compared to running similar helix patch to DAW via USB.  is there always a difference in the output from HX and Helix, or is this potentially also because the Y split is involved?

 

USB to DAW should be the same Helix vs HXS. What USB channels are you using?

 

Here's a link to a good articla on DAW recording levels:

 

https://mojosarmy.medium.com/recording-and-mixing-levels-demystified-151ec65705fa

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