Helix floor into front of amp question

[rodney13]

I'm running a Helix floor into front of Marshall JTM45THW . Only using helix as effects board no amp sims . Is there an impedence output setting within the helix to adjust.  So it actually matches what would be same as guitar into front of amp alone ..

[SaschaFranck]

An impedance output setting would make no sense. Input impedance of amps/pedals is all about the load your pickups "see". So, if you wanted the most faithful "straight into amp" feel, you'd have to find out about the JTMs input impedance and see whether there's an appropriate setting in the Floor's input block.

[rd2rk]

Global Settings>Ins/Outs>Guitar In Pad = ON for high output pickups, but whatever sounds best with your guitar.

1/4" Outputs = Instrument, since you're going into an amp's guitar input.

From the manual:

Choose “Instrument” when connecting the Helix 1/4" outputs to stompboxes or the front of guitar amps; choose “Line” when connecting to mixers, studio monitors, or standalone recorders. When using a single amp or speaker, connect only the LEFT/MONO 1/4" jack.

 

Global Settings>Preferences>Auto Impedance = First Enabled

This ensures that your pickups are loaded appropriately for the first enabled effect, just like with a pedal board ITRW with true bypass FX.

From the manual:

Determines how the Guitar In’s impedance circuit behaves when the Input block > Guitar In-Z is set to “Auto.” When set to “First Block” (the default), the impedance circuit reflects the impedance of the first block on Path 1A, regardless of whether it’s enabled or bypassed. When set to “First Enabled,” the impedance circuit reflects the impedance of the first enabled block on Path 1A.

 

Input Block of Path1A in EVERY preset - from the manual:

Input > Multi and Input > Guitar blocks have an additional Guitar In-Z parameter. Helix has an impedance circuit on its Guitar Input that affects tone and feel by loading your guitar’s pickups as they would by an effect pedal or amplifier. A lower value will typically result in some high frequency attenuation, lower gain, and an overall “softer” feel. A higher value provides full frequency response, higher gain, and an overall “tighter” feel. The “Auto” option allows the impedance to reflect the impedance of the first block on Path 1A

 

[kduck]

What @SaschaFranck said is correct.  The output impedance of the Helix is very low so that it doesn't get loaded down by the amp.  For the JTM45, the high impedance input is 1M and the low is 136k.  The low input also sends the signal through a voltage divider, which drops the signal -6db.

[amenity421]

Sounds to me like OP actually wants to change their output level to Instrument instead of Line to hit the front of the JTM at the same level their guitar or pedals would.

 

OP - you can set the outputs to Instrument in the global settings under ins/outs.