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Any official response on Pod Go Impedance issue?


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While researching Pod Go issues before the purchase, I discovered multiple reports on difference in sound with same presets compared to Helix. Apparently this is known issue, and many solve it with placing additional pedals before guitar input.

 

Here is the main thread:

 

pod-go-impedance-problem

 

 

Here is the video highlighting the difference in sounds:

 

Just wondering, is there any official response to this issue? Is it confirmed/negated by line6 anyhow, anywhere?

 

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The official response is no response. There's been nothing official here, and the two Line 6 contributors active on The Gear Page have refused to comment.

 

 

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Re the video:

 

Helix has a variable input impedance selector. Pod Go has a fixed impedance of 1M Ohm.  If he had Helix set to 'Auto' I'd be interested in a comparison using the other impedance setting in Helix.

 

For those less familiar, placing a buffered unit in front of Pod Go will deliver the same highs.  A buffered unit might be eg any Boss stomp pedal - the pedal has to be powered but not stomped 'on' to benefit from the buffer. The other buffered device could be something like the Line 6 G10 Relay wireless system that is a buffered device.  I use the G10 Relay, so do not have this issue, and is why similarly the Pod Go Wireless doesn't have this issue ie it's an issue ONLY when using cables.  

 

However, it is also very much down to the make, length & type of guitar cable you are using because different cables have different impedance, that can make a big difference to your tone.  I tested my Pod Go with a good quality Vox coiled cable and my Piranha cables and the tonal difference with both as compared to via the G10T or placing my Boss CS3 pedal in front of Pod Go, was negligible and nothing like the variation in this video, which is quite extreme.  

 

Now, whilst there has been a lot of posts on forums/boards/youtube vids on this issue, you need to appreciate that putting a buffered unit in front of ANY MFX unit will brighten tone and not until you hear the difference do you think anything is 'wrong'.  now, although Helix offers an impedance selector, a 1M Ohm input impedance is standard in mid-range MFX.  Even the brand new Boss GX100 is 1M Ohm, whereas it's big brother the GT1000 is 2M Ohm.  So this is not a 'fault' with Pod Go, but an additional option in Helix that is 3 x the price.  

 

I have a Vox Tonelab SE, LE and ST - and the same tone brightening occurs when using a buffered device in front of these.  I also have a BBE Sonic Stomp Maximiser, and this makes tone sound brighter/clearer too.  The same issue applies when using a guitar amp if you plug direct into an amp and then compare with a buffered device in front of it.  

So, whilst there is a tonal difference, it's because of the more sophisticated impedance options in Helix, rather than an issue with Pod Go Impedance.  And here's a further thought.  Many of the more expensive wireless devices allow you to change the settings to replicate guitar cable impedance.  Why?  Because a lot of players don't like the brighter tone, and want it to sound similar to their cabled sound.  

 

This whole thing has just got a bit out of proportion.  But whilst it's possible Line 6 might be able to do something in v1.40 firmware, I suspect only a physical mod would 'solve' the issue for those seriously troubled by it - but you never know. 

 

However, having said all this I still would have hoped that Line 6 would have said something to at least confirm Pod Go impedance definitely is 1M Ohm. The fact they haven't even done so does potentially raise a big question mark and could give some credence to (reportedly) 'techs' who say they have tested Pod Go and found the input impedance to be only a third to a half of 1M Ohm.  If that is proved to be the case then it might suggest Line 6 may have cut corners to save a few pennies.  The problem is that if Line 6 refuses to comment, customers and potential customers are left to speculate, and that's not a good thing. 

 

So Line 6, if you are looking in - please confirm what the Pod Go input impedance is.  

 

 

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Update: It appears from a recent post on one of the FB pages that this is a hardware issue.  "...I'm sorry friends, but the problem is confirmed hardware and here in Italy there are already those who have had the modification under warranty at the authorized Line6 service"

 

I purchased my Pod Go from Yamaha Music London in June 2020 so it is still within its 2 yrs warranty.  I've today written to them and as Yamaha own Line 6 I have requested an explanation as to why Line 6 has not openly come out to its customers on this, and have requested that my Pod Go be 'repaired/upgraded' by Line 6. 

 

I'll keep you all posted.  

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On 5/18/2022 at 9:41 AM, Spindal72 said:

@voxman55 Thanks! Could you suggest guitar cable that might rectify the impedance issue? Thank you =)

 

i'm afraid not, because all guitar cables will impact on tone to varying degrees.  Easiest 'fix' is to place a buffered pedal (any Boss pedal really) in front of it - it has to be powered (mains or battery) but doesn't have to be clicked on - so if you have eg a compressor you don't have to have the compressor engaged.  Alternatively, wireless units like the Line 6 G10 Relay are buffered (this is what I use).  BTW, if you have Pod Go Wireless and use the G10TII you'll be buffered already.

 

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On 5/17/2022 at 9:05 PM, voxman55 said:

Update: It appears from a recent post on one of the FB pages that this is a hardware issue.  "...I'm sorry friends, but the problem is confirmed hardware and here in Italy there are already those who have had the modification under warranty at the authorized Line6 service"

 

I purchased my Pod Go from Yamaha Music London in June 2020 so it is still within its 2 yrs warranty.  I've today written to them and as Yamaha own Line 6 I have requested an explanation as to why Line 6 has not openly come out to its customers on this, and have requested that my Pod Go be 'repaired/upgraded' by Line 6. 

 

I'll keep you all posted.  

Can you say what facebook page this was posted, please? Thanks in advance.

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On 5/17/2022 at 3:10 PM, voxman55 said:

Re the video:

 

Helix has a variable input impedance selector. Pod Go has a fixed impedance of 1M Ohm.  If he had Helix set to 'Auto' I'd be interested in a comparison using the other impedance setting in Helix.

 

For those less familiar, placing a buffered unit in front of Pod Go will deliver the same highs.  A buffered unit might be eg any Boss stomp pedal - the pedal has to be powered but not stomped 'on' to benefit from the buffer. The other buffered device could be something like the Line 6 G10 Relay wireless system that is a buffered device.  I use the G10 Relay, so do not have this issue, and is why similarly the Pod Go Wireless doesn't have this issue ie it's an issue ONLY when using cables.  

 

However, it is also very much down to the make, length & type of guitar cable you are using because different cables have different impedance, that can make a big difference to your tone.  I tested my Pod Go with a good quality Vox coiled cable and my Piranha cables and the tonal difference with both as compared to via the G10T or placing my Boss CS3 pedal in front of Pod Go, was negligible and nothing like the variation in this video, which is quite extreme.  

 

Now, whilst there has been a lot of posts on forums/boards/youtube vids on this issue, you need to appreciate that putting a buffered unit in front of ANY MFX unit will brighten tone and not until you hear the difference do you think anything is 'wrong'.  now, although Helix offers an impedance selector, a 1M Ohm input impedance is standard in mid-range MFX.  Even the brand new Boss GX100 is 1M Ohm, whereas it's big brother the GT1000 is 2M Ohm.  So this is not a 'fault' with Pod Go, but an additional option in Helix that is 3 x the price.  

 

I have a Vox Tonelab SE, LE and ST - and the same tone brightening occurs when using a buffered device in front of these.  I also have a BBE Sonic Stomp Maximiser, and this makes tone sound brighter/clearer too.  The same issue applies when using a guitar amp if you plug direct into an amp and then compare with a buffered device in front of it.  

So, whilst there is a tonal difference, it's because of the more sophisticated impedance options in Helix, rather than an issue with Pod Go Impedance.  And here's a further thought.  Many of the more expensive wireless devices allow you to change the settings to replicate guitar cable impedance.  Why?  Because a lot of players don't like the brighter tone, and want it to sound similar to their cabled sound.  

 

This whole thing has just got a bit out of proportion.  But whilst it's possible Line 6 might be able to do something in v1.40 firmware, I suspect only a physical mod would 'solve' the issue for those seriously troubled by it - but you never know. 

 

However, having said all this I still would have hoped that Line 6 would have said something to at least confirm Pod Go impedance definitely is 1M Ohm. The fact they haven't even done so does potentially raise a big question mark and could give some credence to (reportedly) 'techs' who say they have tested Pod Go and found the input impedance to be only a third to a half of 1M Ohm.  If that is proved to be the case then it might suggest Line 6 may have cut corners to save a few pennies.  The problem is that if Line 6 refuses to comment, customers and potential customers are left to speculate, and that's not a good thing. 

 

So Line 6, if you are looking in - please confirm what the Pod Go input impedance is.  

 

 

No, the Pod Go's input impedance has been measured independently by a couple of people (at least) including me. It is around 250K Ohms. This is far lower than the 1M Ohm stated by Line 6.

 

There is no need to drag the Helix into the debate - that is a red herring. One can simply turn off all the blocks on the Go and compare playing directly through the Pod Go verses playing with a buffer buffer pedal in front. The difference is striking.

 

Someone on the facebook Pod Go group posted a snippet of the Go's schematic clearly showing a 1nF capacitor shunting the input to ground, and a picture showing the location of the offending cap (C126 if memory serves). The post was removed within hours - Line 6 probably threatened legal action.

 

That cap would definitely cause the low input impedance. And no amount of firmware changes can remove that cap.

 

I suspect that if Line six does anything at all to address this, they'll simply add a generic high end boost in the signal path in an attempt to mask the problem.

 

But so far, Line 6 is ignoring the problem. They have not addressed it here even though it was brought to light in February. There's a thread on The Gear Page discussing this issue and the Line 6 employees who regularly participate on TGP have not commented despite being directly asked.

 

 

 

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On 5/18/2022 at 10:40 AM, poodad said:

Someone on the facebook Pod Go group posted a snippet of the Go's schematic clearly showing a 1nF capacitor shunting the input to ground, and a picture showing the location of the offending cap (C126 if memory serves). The post was removed within hours - Line 6 probably threatened legal action.

 

Wow........  How dare they post a schematic..............   Must threaten legal action!

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On 5/18/2022 at 3:05 AM, voxman55 said:

Update: It appears from a recent post on one of the FB pages that this is a hardware issue.  "...I'm sorry friends, but the problem is confirmed hardware and here in Italy there are already those who have had the modification under warranty at the authorized Line6 service"

 

I purchased my Pod Go from Yamaha Music London in June 2020 so it is still within its 2 yrs warranty.  I've today written to them and as Yamaha own Line 6 I have requested an explanation as to why Line 6 has not openly come out to its customers on this, and have requested that my Pod Go be 'repaired/upgraded' by Line 6. 

 

I'll keep you all posted.  

But what's the supposed warranty length?

I think EU is 1 year warranty

I purchased my PodGo in February so I'm out of warranty, even if, technically, it's a product fault and not anything damaged

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On 5/21/2022 at 10:53 AM, OmegaSlayer said:

But what's the supposed warranty length?

I think EU is 1 year warranty

I purchased my PodGo in February so I'm out of warranty, even if, technically, it's a product fault and not anything damaged

Standard warranty is 12 mths but some retailers offer longer - Yamaha gives 2 yrs as standard. As this appears to be a design issue, the manufacturers warranty is not relevant and Line 6 should repair your Pod Go regardless. Contact Line 6 support.

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Filed a ticket on Sunday

Got an OK from Line6 Monday, late afternoon

Contacted the local repair service immediately

Got a reply this morning (Tuesday)

Brought the device in in the afternoon, walked away with the problem solved, 7 minutes later

 

...wish I could say more...

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Techs are under non disclosure agreement

I suggest that IF someone gets to know the issue, they keep for themselves because they put at risk the exclusivity service of the techs

Capisc'...

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7 minutes sounds like they've either got extremely fast techs on hand (à la F1 tire change fast), or they had either a new Pod Go or a Pod Go refurb ready for an exchange...  Which may mean that they fixed the issue in the newer production units.  But yeah, pure speculation at this point...

 

It would be interesting to know what is going on though.  Maybe L6 is not answering for legal (liability) reasons ...  Which kinda sucks for us users.  If they screwed up something in the Pod Gos, why try to keep it a secret from the users?  The right thing to do would be to own up and offering a resolution.

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On 5/24/2022 at 8:04 PM, usedbyanr said:

Does anyone have any idea what the techs are doing to the hardware to fix the issue?

My best understanding is that they are removing a single capacitor that appears to be the culprit. 

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On 5/25/2022 at 12:30 AM, OmegaSlayer said:

Techs are under non disclosure agreement

I suggest that IF someone gets to know the issue, they keep for themselves because they put at risk the exclusivity service of the techs

Capisc'...

But you aren't under non disclosure. Tell us what was involved from your point of view.

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On 5/25/2022 at 7:30 AM, OmegaSlayer said:

Techs are under non disclosure agreement

I suggest that IF someone gets to know the issue, they keep for themselves because they put at risk the exclusivity service of the techs

Capisc'...

 

On the contrary, I think this should be made as public as possible. Line 6 should be upfront with its customers and shouldn't have anything to hide. 

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On 5/26/2022 at 12:11 AM, poodad said:

But you aren't under non disclosure. Tell us what was involved from your point of view.

As the process derives from the ticket I filed here on support, Line6 knows who my tech is

I hadn't realized until I went to the lab (which lately changed address and name) but I have known him for 29 years, and I don't want to put him in troubles

 

My unit hasn't been replaced, it had the same scratches and it wasn't restored to default, my presets are all there

 

I repeat myself, 7 minutes clocked, I phoned my girlfriend when I left the lab, then after 7 minutes I got his call to go take the device back

That's how I know it has been 7 minutes, from the phone calls tab

7 minutes for me is: unscrew the device > unsolder part > solder back the part > reassemble the device > try the device

 

The problem is not "impedance" as a whole...but part of it

 

And yes, L6 should come forward with the acknowledgment of the problem as it seems so very easyto solve

 

@voxman55

"Line 6 should be upfront with its customers and shouldn't have anything to hide. "

 

"Circuitboard copyrights" was the reply I was given

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Circuit board copyright? What utter bunkum. No one's asking Line 6 to divulge it's circuit board diagrams. All they need to do is acknowledge the issue and give a simplistic overview e.g. we remove a capacitor and do a minor adjustment to the wiring.  Hardly giving away trade secrets!!!  

 

 

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Hello everyone! I want to tell you my experience guys/girls. I hope this is helpful to someone.

I bought the Pod Go in February 2020 if I'm not mistaken. I have been with this unit for a long time, playing and tuning almost every day.

After all this time, I always felt like something was missing, but what do I know, right? so keep tweaking my presets and playing around. Ever since I bought a Stratocaster... when I bought it, second hand, I played it for about half an hour with an old amp and it sounded amazing! But when I got back home and plugged in Pod Go... WTF. that guitar was lifeless!

So I was out of ideas until I saw this impedance issue on the forums, and after a while I decided to try the famous BOSS buffered pedal. FINALLY today! A BOSS CS3 OFF does the job. No need to turn it on. The stratum is alive again. the difference is huge i can tell. I don't mind having another pedal, it's not ideal, but hey, this sounds amazing now.

 

In summary, I can confirm that the impedance problem is real, and that a boss pedal turned off enhances the sound much more.

 

good luck!

 

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Wow.  Hearing the video up top, I hardly noticed a difference.   But when trying A/B tests with and without a Boss DSD-2 pedal in front (off), the Pod Go does like Frampton in '75:

It comes alive! 

 

It responds more to my playing feel, especially with edge of breakup tones like those of the Line 6 Litigator amp.

 

Thanks all.

 

tg

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