This video saved my life, for mental health related issues. I have been trying to solve this for some time now. I have many amps/preamps that I connect to the Fryette and had also been connecting my effects to the effect loop of the AMP. One day I decided it is kind of a pain to disconnect and reconnect the effects loop pedals every time I changed an amp so I tried the effects loop on the Fryette Power Station. I found myself standing in a puddle of my own urine trying to understand what the horrible screaming I was hearing was. An isolated PSU did not resolve the issue, the isolation transformer between the amp and distortion pedal did. Thank you so much for this.

@FryetteAmps

5 ай бұрын

Awesome mental image!

Another great video, thank you!!!!!! This is the kind of topic that could produce pages of replies in a forum (with helpful and not so helpful ideas) but this one video just shows and solves the problem. Again, great work and thank you!

@JoeGambleGuitar

3 жыл бұрын

Thanks Richard. Agreed this sort of thing would light up the forums. Haha

Amazing video !

Really appreciate this video and your awesome products. Watched this before my ps2 arrived. I bought it partly for the attenuation in I need my small amp larger but mainly was really looking forward to using my boss ms3 with the 4 cable method in the loop. Sure enough at higher gains it squealed like a pig. So I immediately purchased the behringer hum eliminator just like you said and it worked perfectly. I am amazed how good the effects sound in the loop and the tone at all volumes. A game changer indeed : )

Thanks so much for this video. Very informative.

I have this problem with gsp1101 or HX Stomp 4cm into my amp heads, even without using real pedals. I just 4cm the head and then head into the PS-2 then out into the cab. Took a lot of digging online. Good on ya for putting this out.

Back when I played real tube amps before I got my Kemper I always kept a few EbTech Hum Eliminators handy for issues like this. They are a great investment.

Guys, Tip: It's worth to buy a good ground loop eliminator. I have an Allen Avionics and an EBTech. The Ebtech steals some signal and the Allen is perfect!

I am sure the problem must be more complex than this example. Thanks for the info.

Hi, thanks for the clarification. I bought a Line isolation transformer (Palmer PLI 01) and it worked - but funnily now the tail of my held notes or ringing chords kind of gets chopped off… I can’t wrap my head around that… all my devices are powered by the same wall socket, my pedals have an isolated power supply, and the ground lift button didn’t change a thing. When I run the exact same pedalboard with 4 cable method into the effects loop of the amp it doesn’t happen (i know I could use that loop but the same applies for non-effects-loop amps as well) 🤷🏻‍♂️

Love the vids! Please keep them coming. Can both DIRECT OUT1 and DIRECT OUT2 be use at the same time on the POWER LOAD-1 v2? Cheers.

@FryetteAmps

3 жыл бұрын

Yes! fryette.com/content/PowerLoad_Green%20LED_Manual.pdf

I wish I had seen this video about a year ago.. took me a while to figure out where the ground issue was in my setup, but I did figure it out.... Im ordering the Pyle today.. its inexpensive.

(For the AC 120 power source ground loop) What about plugging either the power station OR the amp into an external 1:1 iso transformer? Couldn’t you get the same issue as the stereo amp being plugged into the same power source scenario?

that's great, thanks for taking the time to explain. When you plugged the isolation box though, the hum noise was louder than before. Is this normal?

@FryetteAmps

3 жыл бұрын

Thanks for the comment! I have to say, when I was in the room making the video there wasn't any sort of appreciable difference in noise when I plugged the iso box in- certainly not to the degree that you hear in the video. I think what happened was that the compressor on the audio track readjusted itself and pulled the noise floor up a bit after I stopped speaking. Also, there was some iPhone audio blended in after I plugged the box in (which was in front of the amp vs the lav mic that was the only audio source before the squeal). Hope that helps!

@drolnogardvi

3 жыл бұрын

@@FryetteAmps actually this helps a lot! Thanks again, great work!

I'm planning on running GTR---Dist./O.D.----Amp---PS-2---PS-2 send---input of first mod pedal---one output of stereo pedal to return on the PS-2, (to run combo speaker) the other to a second amp. (not using the amp's effects loop) I'm at somewhat of a loss here as to whether I'd need more than 1 Iso transformer, whether it'd go in the same place, or maybe wouldn't need one at all; though that seems unlikely. Would greatly appreciate any guidance you could provide. Just got my PS-2 this week, still waiting on the amp to go with it-I. am. SO. stoked!

@FryetteAmps

3 жыл бұрын

Please check out the links to ground loop troubleshooting charts in the "SHOW MORE" field below the video.

If the source of the ground loop is the cable jacks from the two pedals touching each other, then why not just keep them separated? There must be some noise that has nothing to do with the proximity of the two pedals to one another, right? If not, what am I missing?

@FryetteAmps

Жыл бұрын

You're only missing that until you see this vid, you may not be aware of the need to avoid certain kinds of ground loops. Also the oscillation behavior varies from rig to rig and among various amps.

Emailed Fryette about this issue yesterday - hoping they have a fix to my issue which is a ton of awful squealing (at higher gain channels even when guitar volume is at zero) and humming coming from my rig since adding a KHE amp switcher into my 4cm. I dont have any pedals touching each other as I have a QC. I can only deduce its from my PS100 after doing some troubleshooting. I've heard these "hum destroyers" color the sound ... anyone who has used these devices find that and which device did you use. Thanks

@Mkeniti

2 жыл бұрын

Pick the Allen Avionics. I have the Ebtech and the Allen...Allen, by far, is the best.

@bengoldstein964

2 ай бұрын

Did you resolve your issue, if so how?

I'm using my PS100 with a Hughes and Kettner Triamp MK3 and an Axe FX3 in 4CM. This may be a very obvious question but can I just take the cables out of the FX loop in the amp and instead put them into the loop of the PS? Would this even be beneficial, and if so in what way? Thanks.

@FryetteAmps

Жыл бұрын

It is beneficial because your time delay effects will then be after the amplifier output distortion.

@dominicgibson9529

Жыл бұрын

@@FryetteAmps thanks for the reply. I've run into a problem, though, as is my wont. I took the leads going into the "send" and "return" of my amp head and put them into the PS100, and it squealed most terribly. Is the issue the 4CM? Is there another way of taking the post FX set up of the 4CM and sending them to the PS? Thanks again for any advice.

@FryetteAmps

Жыл бұрын

@@dominicgibson9529 The video above explains that. Also, below the vid in the description there is a link to a diagram of a 4CM rig using an iso transformer.

@dominicgibson9529

Жыл бұрын

@@FryetteAmps Thanks again...I apologize for what must be obvious questions to you. I have used all manner of guitar gear over the 30 years or so I've been exploring sound. I built a huge pedalboard a couple years back, for the hell of it utilizing an ENGL Special Edition head, and its 2 series FX loops. One loop was for all manner of pedals and MIDI gear controlled by a BOSS ES8, and the second loop used just the return and had a Fractal FM3 in it. All of these things worked brilliantly. I've never experienced grounding issues before with any gear I have used, so this really is a whole new experience for me. On top of this my PS100 has an issue with one of its chips, which I'm in contact with Dave for...apparently it's a known issue, and I was wondering if this was another symptom of the dodgy chip. Guess I have to get an ISO box. Many thanks, again👍

Could the iso be patched in either the send or return line of the PS2 fx loop instead of in front of the amp?

@FryetteAmps

Жыл бұрын

Yes, but that may not eliminate a ground loop issue. Follow the links in the description section below the video to see the flow charts. They show where ground loops typically occur.

@harleysymington5106

Жыл бұрын

@@FryetteAmps Thanks for the great info!

At 9:24 you say you can’t provide the same hum elimination and solve this problem and force your customers to have to then go purchase an additional dongle box, to fall off the top of my amp or PWR Station that costs $14 at Amazon. This translates to about an additional $0.39 worth of additional cost to manufacture it this way with the isolation everyone’s going to need in this very REAL world example you demonstrated. Are you kidding me? What a laugh! I was going to buy your product, but now you’ve basically revealed your big middle finger Fryette flipped to me instead of solving this chump problem in the 1st place! Thanks.

Thanks, having this exact problem. Never would have thought of the pedals touching one another being a problem. Btw, that transformer in front of the amp seems to add a lot of noise itself... ?

@FryetteAmps

3 жыл бұрын

It's not the iso trans adding extra noise. That's iPhone compression picking up room noise.

@CP-mt1st

3 жыл бұрын

@@FryetteAmps ahh okay makes sense. Thanks

thanks cause mine works great till i plug my pedal board in and it squeals like a pig...which sucks cause i took my whole pedal board apart and realized it wasnt my pedals but the power station ps-100 which i just received was on back order ...i use ciosk isolated power bricks .. i didnt think about hitting the ground loop button i will try that when i get home and give n update...using a Marshall non master 50watt head and Marshall cab

@FryetteAmps

2 жыл бұрын

Ciosk and One Spot power supplies are often the source of this problem.

@NoCoverCharge

2 жыл бұрын

@@FryetteAmps really ? That sucks cause I run about 12 pedals on my board and I can’t use 12 individual power supplies that would suck… so i probably won’t use the Marshall with my pedals …just play it straight up ..

@FryetteAmps

2 жыл бұрын

@@NoCoverCharge You don't need 12 supplies. Just 1 good one with true isolated outlets with low digital supply noise. Voodoo Lab, Strymon are good examples.

I bougjt the same exact hum eliminator as in the video. The squealing vanished but my guitar signal is very very low. I cant get any gain off the high input of a jcm800. @fryetteamps any idea?

@FryetteAmps

3 ай бұрын

Please see the following link, also accessible by clicking on the "more" tab below the video. If you normally use any pedals between the guitar and amp input, put the isolator after the pedal. fryette.com/content/GroundLoopFlowChart_PS2_Detail.pdf

@NicolasLaplante

3 ай бұрын

@@FryetteAmpsthat's exactly what I did. However, the pedal (Wampler Terrraform) has 2 built-in routes. One pre route, which comes from guitar and to amp, and one post route, which is inserted in the fryette FX loop. So, same pedal, both in front of amp and in FX loop via 2 internal routes. That's when I get the squeal.

@FryetteAmps

3 ай бұрын

@@NicolasLaplante That won't work as you now know because the dual pedal is still a single ground path. That means the pedal is defeating your attempt to isolate the input.

@NicolasLaplante

3 ай бұрын

Ok so that means that the dual route on the pedal can't be used with the fryette fx loop. I'll use it only in pre amplifier mode then. Thanks alot for the support!