HX Stomp XL - No Sound with specific Amplifier..

[TR911]

Has anyone else experienced this?

Last night I took my HX Stomp XL to a gig. I plugged it all up to a Old Fender Super 60 using the mono input/output ports and nothing. No sound at all. It works in the analog bypass but when the bypass is turned off there is no sound at all. I even did a factory reset and lost all of my time consuming hand built presets.

I took it home and plugged it all up to a Fender Blues Jr using the same cables, power supply, and guitar and everything works fine.

By the way this is the second time this has happened and I have never been able to get it to work with the Super 60.

I'm scratching my head here, is there a certain impedance required for the output in order for it to work??

[phil_m]

Not sure what’s happening, but, please, folks, the factory reset shouldn’t be your first troubleshooting step… Did you perhaps have something connected to FX loop when setting up your tones? Did you check the inputs and outputs? It’s nearly impossible to troubleshoot after the fact.

[rd2rk]

Using HX Edit you can perform a backup of your time consuming hand built presets. It's actually rule #1 of using a computer - "Back up early, back up often".

As to why you can't get it to work with the Super 60, after a quick look at the Super 60 manual, there's no apparent reason why it shouldn't.

Sending the HXS L/Mono Out to the Super 60 guitar input, the HXS Out should be set to INSTRUMENT, but you should still get sound even set to LINE.

Did you try sending the Stomp L/Mono Out (set to LINE) to the Super 60 Power Amp In?

I'd suggest attaching a sample preset for analysis, but....

[TR911]

On 4/20/2022 at 11:22 AM, rd2rk said:

Using HX Edit you can perform a backup of your time consuming hand built presets. It's actually rule #1 of using a computer - "Back up early, back up often".

As to why you can't get it to work with the Super 60, after a quick look at the Super 60 manual, there's no apparent reason why it shouldn't.

Sending the HXS L/Mono Out to the Super 60 guitar input, the HXS Out should be set to INSTRUMENT, but you should still get sound even set to LINE.

Did you try sending the Stomp L/Mono Out (set to LINE) to the Super 60 Power Amp In?

I'd suggest attaching a sample preset for analysis, but....

 

On 4/20/2022 at 10:27 AM, phil_m said:

Not sure what’s happening, but, please, folks, the factory reset shouldn’t be your first troubleshooting step… Did you perhaps have something connected to FX loop when setting up your tones? Did you check the inputs and outputs? It’s nearly impossible to troubleshoot after the fact.

I knew I would loose all of my presets, I was just so frustrated I did it anyways. I worked as a Post Data Sales Engineer for 23 years.

There has to be something that is missing that either the amp is looking for or the HX. Like maybe a current of some sort, or specific resistance (4ohm, 8 ohm, 16 ohm etc..).

I tried Line/Line, Line/inst, inst/inst, & inst/line nothing worked. The oddest part is if I put the HX in Analog Bypass I could get normal sound, but if I engaged the DSP's it would not pass the sound. So far every other amp I've tried it in has worked. I'll keep digging and see what I can find. If I find a solution I'll post it. Surely, I am not the only one that has had this issue.. 

[datacommando]

On 4/23/2022 at 12:12 AM, TR911 said:

So far every other amp I've tried it in has worked.

This is odd, really very odd, in fact I have never heard of anything like this previously. If you are using the same cables etc., and your XL Stomp functions as expected with every other amp you have tried, then why do you suspect the issue is with the Stomp and not something else happening with the Fender?

 

I had a quick look at the schematic for the Super 60 and nothing leaps out as particularly unusual. It does appear to have a Preamp Out/Power Amp In (FX Loop), have you tried hooking up 4 cable method through that, because your post made it appear you are simply jacking into the front panel?

 

Owner’s Manual here:

https://www.fmicassets.com/Damroot/Original/10001/OM_leg_gtramp_Super_60.pdf

 

Schematic available here:

https://ampwares.com/schematics/super_60_rack.pdf

 

Hope this helps/makes sense.

[codamedia]

On 4/22/2022 at 6:12 PM, TR911 said:

Like maybe a current of some sort, or specific resistance (4ohm, 8 ohm, 16 ohm etc..).

 

No, I would highly doubt that is built into the Super 60.... but it may be the correct path, keep reading. 

On 4/22/2022 at 6:12 PM, TR911 said:

I tried Line/Line, Line/inst, inst/inst, & inst/line nothing worked. The oddest part is if I put the HX in Analog Bypass I could get normal sound, but if I engaged the DSP's it would not pass the sound.

 

When the Stomp is in another amp... what is the volume difference between "bypassed mode" and "engaging the DSP's?"

 

If the DSP signal is quite a bit hotter it is possible the first pre-amp tube in the amp (and/or something early in the circuit) is failing and cannot take the signal level. Have you tried turning down the processed signal to see if the amp "kicks in"? 

 

On 4/22/2022 at 6:12 PM, TR911 said:

Surely, I am not the only one that has had this issue.. 

 

I had it happen one time, but not with a Helix device. When I ran a standard pedal board I always had a boost at the end of the chain. On one show I was using a backline amp on a gig (IIRC it was a Fender Hot Rod... Deville or Deluxe) and any time I engaged the boost the amp would stop. I thought the boost pedal failed so I stopped trying to use it on that gig. Turns out the pedal was fine... and never caused any grief on any other amp. 

[TR911]

On 4/23/2022 at 5:38 AM, datacommando said:

This is odd, really very odd, in fact I have never heard of anything like this previously. If you are using the same cables etc., and your XL Stomp functions as expected with every other amp you have tried, then why do you suspect the issue is with the Stomp and not something else happening with the Fender?

 

I had a quick look at the schematic for the Super 60 and nothing leaps out as particularly unusual. It does appear to have a Preamp Out/Power Amp In (FX Loop), have you tried hooking up 4 cable method through that, because your post made it appear you are simply jacking into the front panel?

 

Owner’s Manual here:

https://www.fmicassets.com/Damroot/Original/10001/OM_leg_gtramp_Super_60.pdf

 

Schematic available here:

https://ampwares.com/schematics/super_60_rack.pdf

 

Hope this helps/makes sense.

I haven't tried the 4 cable method...yet.. and yes the amp is nothing special built in 1988 so it's not a DSP loaded piece of eq., I did remove it from the original 1x12 cabinet and made it a piggy back so I could plug into different cabs, other than that it is original no circuit mods, cap changes, transformer or anything else. Thanks for the paper work I'll look it over. I'm going to get out my multimeter and do some checking. The amp is at our practice site so it will have to come home the next practice and I'll replace it with my Peavey Classic 50 2x12. 

[datacommando]

On 4/24/2022 at 2:27 AM, TR911 said:

I'm going to get out my multimeter and do some checking.

Hi again,

 

Good luck with that, as it is possibly the only way to track down what is causing this mysterious phenomenon.
 

“When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.” ~ Arthur Conan Doyle, The Case-Book of Sherlock Holmes.
 

;-)

[codamedia]

On 4/23/2022 at 8:27 PM, TR911 said:

the amp is nothing special built in 1988 so it's not a DSP loaded piece of eq., I did remove it from the original 1x12 cabinet and made it a piggy back so I could plug into different cabs, other than that it is original no circuit mods, cap changes, transformer or anything else.

 

1988 makes those original filter caps pretty old and volatile. The bias cap is likely in desperate need of replacement as well.

[TR911]

This is real and still an issue. I am completely out of options. It is like the HX does not like this building for some unknown reason. I've tried different amps, cords, and I have even tested them before I take them to this building, they all work any where but this one place. It's not a power issue either. I've tested the output on both the AC outlet and the power brick. Any way the building is an old 25 foot X 10 foot shipping container turned into a storage building and now it is a music room. All of my other equipment works the only one that will not is the HX Stomp XL.