Problems to connect Helix Stomp XL to return in a cab

[panchorreado]

Hello,

I tried connecting my Helix Stomp XL to the return of my Marshall Valvestate VS65R during a rehearsal with the idea of using the speaker of the amp to utilize the amp and cab simulations that I have in the snapshots of my Helix. The configuration I used was as follows:

    1.    A cable from the Helix’s L/Mono Output to the return of the Marshall.
    2.    In global settings, I selected the output as ‘instrument.’

The problem is that with the volume control of the Helix at maximum, the Marshall sounds too quiet (almost imperceptible). Increasing the volume on the Marshall (neither the overdrive nor the clean channel volume) doesn’t work either.

I also tried increasing the decibels of the output in the signal chain in the helix, but that didn’t work either.

I’ve tried this with two Valvestate amplifiers from the 2000 series, and the same thing happens. So, during the rehearsal, I ended up connecting the Helix to a PA, but I’d like the option to use a cab instead of going directly to the PA. What could be causing this? Would I need to connect the Helix output to a physical preamp and then to the cab?

Thank you very much.

[rd2rk]

There's an FX MIX knob. IDK if it affects the level of the FX Loop or the internal reverb, but did you try turning that up?

[ricstudioc]

On 8/11/2024 at 12:08 PM, panchorreado said:

2.    In global settings, I selected the output as ‘instrument.’

Just a thought - wouldn't an FX return (I assume that's what you're using on the amp) expect to see a "line" level?  i.e. coming back from some sort of processor?  And anyway, line is just plain hotter than instrument.

[rd2rk]

On 8/11/2024 at 9:10 PM, ricstudioc said:

Just a thought - wouldn't an FX return (I assume that's what you're using on the amp) expect to see a "line" level?  i.e. coming back from some sort of processor?  And anyway, line is just plain hotter than instrument.

 

Most modern FX Loops can handle either (by switch) or both, but since most players use stomp type FX these days, being able to handle instrument level is pretty much standard. That said, it doesn't hurt to try both settings.

[gbr13697]

Amp effects loops are notoriously variable.  The Return is designed to see a signal level equivalent to the Send level from its own preamp.  These have been known to be up to 30v in extreme cases! No modeller is ever going to pump out that sort of level.  May not be your problem, but you could try connecting other devices into the Return of your amp to see if they also appear quiet. Even just connecting your guitar through a boost pedal into the Return will tell you a lot about what level of signal your power stage is expecting.