Jump to content

Helix > EXT amp channel switching question


Dano2019
 Share

Recommended Posts

I'd like to use my Helix EXT AMP 1/2 jack to switch channels on a tube guitar amp that uses a TS (mono) jack for channel switching, not TRS.   Is the use of a TRS jack mandatory on the Helix, which would then require me to wire up a custom cable?  Thanks for any advice.

Link to comment
Share on other sites

8 hours ago, BassDemon said:

Do you know if the Ext Amp switching can be set to momentary?

 

Helix footswitches can be set to act as momentary, but I don't believe the EXT AMP jack itself can behave that way. Those are latching relays, so there's no mechanism to hold them open or closed while holding down the footswitch.

Link to comment
Share on other sites

On 9/13/2018 at 1:43 AM, BassDemon said:

Do you know if the Ext Amp switching can be set to momentary?

 

It is possible to make the Ext Amp switching momentary.  It's a bit tricky and I only know how to do it in HX Edit:

 

1. In the Command Center, assign the desired foot switch to the Ext Amp and select the type (Tip, Ring, or Both).  Select the LED color and customize the label if you want to.

2. Switch the foot switch to the desired default state.  This will be the state of the Ext Amp when the foot switch is not being pressed so this is important.  When the LED is dim, the circuit will be open, when it is lit, the circuit will be shorted.  For the Trio+ I needed it to be normally open, so I made sure that the LED was dim before proceeding to the next step.

3. Add a gain block to your preset and assign its bypass to the same foot switch and its Type to Momentary.  It doesn't matter where in your signal path you add the gain block since it can be deleted when you're done.

4. Repeat for the other two Ext Amp types if desired.  You can use the same gain block.

5. Delete the gain block, save the preset and you are all set.

If you did it correctly, the foot switch LED will change states when pressed and return to the default state when released, so for normally open, the LED will normally be dim and will get bright when pressed and return to dim when released.

Link to comment
Share on other sites

2 hours ago, RandyInNashua said:

 

It is possible to make the Ext Amp switching momentary.  It's a bit tricky and I only know how to do it in HX Edit:

 

1. In the Command Center, assign the desired foot switch to the Ext Amp and select the type (Tip, Ring, or Both).  Select the LED color and customize the label if you want to.

2. Switch the foot switch to the desired default state.  This will be the state of the Ext Amp when the foot switch is not being pressed so this is important.  When the LED is dim, the circuit will be open, when it is lit, the circuit will be shorted.  For the Trio+ I needed it to be normally open, so I made sure that the LED was dim before proceeding to the next step.

3. Add a gain block to your preset and assign its bypass to the same foot switch and its Type to Momentary.  It doesn't matter where in your signal path you add the gain block since it can be deleted when you're done.

4. Repeat for the other two Ext Amp types if desired.  You can use the same gain block.

5. Delete the gain block, save the preset and you are all set.

If you did it correctly, the foot switch LED will change states when pressed and return to the default state when released, so for normally open, the LED will normally be dim and will get bright when pressed and return to dim when released.

 

I just tried that, and it worked... I guess I was wrong and those relays can be held open (or closed).

Link to comment
Share on other sites

  • 3 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...