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Post subject: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 3:14 pm
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So they delivered the amp an hour and a half ago.......I already called GC as mine was made on 12-28-2010 and the "fizz" problem is very noticeable. The manager of GC will call me as soon as the new amps come in. I told him I wanted one after Feb 2011 and that others here had mentioned that Fender is not saying anything about the problem, and just trying to get rid of old stock......For an amp that is so HOT and NEW, that the storage facility still has ones this old is really surprising to me. I really like the amp a lot, and want a newer manufactured one so I will be happy, or I have 30 days to just return it for a full refund.

As an electrician of 31 years, I know that the outlet that the amp is plugged into is on its own circuit and therefore no interference, and the panel is balanced.
I have not done a firmware upgrade, as the usb cord they give you is way to short to reach my computer, unless I move the amp from its stand. I will just have to use a PC laptop and upgrade, but I believe I read here that others said that did not make the problem go away.....but I have to at least try. I will get a long usb cord so I can hook it up to my mini mac, which I prefer to use for recordings.

I hope and pray the ones that GC get in are not old ones as well, or I will be forced to do a return and buy one down the road, when the old stock is gone. I wont get the 50
dollars off that I got on this model, but the fizz is not worth the 50 bucks.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 3:38 pm
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Actually, if you read the various threads about the fizz, date of manufacture seems to have nothing to do with it. There are quite recent amps that fizz, and some originals from 2010 that don't. It seems to be fairly random. All you can do is keep returning them until either you get a non-fizzer, or the return period runs out. And even then, many of them--mine included--begin to fizz months down the road.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 3:46 pm
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Well that news does not make me very happy. I just read where some think its a virus?
one thing I did not like is one of the main threads that discussed this problem has been closed and no more can be said on the matter..... Not a good thing.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 5:31 pm
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ctguy1955 wrote:
I just read where some think its a virus?


This sounds utter nonsense - if this was software related, Fender would have fixed it. i'm not even sure if its possible for a DSP amp to be infected by a virus. I've certainly never heard of this!

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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 6:16 pm
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ctguy1955 wrote:
Well that news does not make me very happy. I just read where some think its a virus?
one thing I did not like is one of the main threads that discussed this problem has been closed and no more can be said on the matter..... Not a good thing.


a. It's not a virus, that's simply not possible. There is no way your mustang connects to the internet in a way that it could be infected with a virus.

b. I'm not aware of any thread that has been closed. There are plenty of open threads on fizz.

c. Fender told me in person and on the phone that they consider fizz an acceptable artifact of the Mustang III/IV/V amps and will not warranty them against the problem. If fizz is an issue, you might want to consider your alternatives, or see if you can get a commitment in writing either from Fender or from your dealer that they will take care of fizz if it occurs after the vendor's normal return window. Many people report onset of fizz after the return window is over, and my experience is that fender will not replace your fizzing sample for a non-fizzing one, since they consider it an acceptable artifact.

d. My offer still stands for Fender to correct any possible misinterpretation I might have for their position.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 8:19 pm
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brucefulton wrote:

a. It's not a virus, that's simply not possible. There is no way your mustang connects to the internet in a way that it could be infected with a virus.

b. I'm not aware of any thread that has been closed. There are plenty of open threads on fizz.

c. Fender told me in person and on the phone that they consider fizz an acceptable artifact of the Mustang III/IV/V amps and will not warranty them against the problem. If fizz is an issue, you might want to consider your alternatives, or see if you can get a commitment in writing either from Fender or from your dealer that they will take care of fizz if it occurs after the vendor's normal return window. Many people report onset of fizz after the return window is over, and my experience is that fender will not replace your fizzing sample for a non-fizzing one, since they consider it an acceptable artifact.

d. My offer still stands for Fender to correct any possible misinterpretation I might have for their position.


@brucefulton

a. It's just software and therefore it could be prone to infection in all the usual ways ... such as an infected download from Fender ... which is of course highly unlikely. However ... users should wash their downloads through a scanner.

b. There have been many fizz related threads that were closed by Fender ... this happened a few months ago when some posters decided to abuse their posting privileges and got a little profane and out of hand.

KenB


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Mon Dec 19, 2011 9:53 pm
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I was away for a few hours, but when I came back, I started playing with the amp again.
If I hook up a mp3 player to it, it sounds fantastic...Just wish you could change the bass and treble and other features. So My Wife wanted to hear the amp. Right out of the gate I was able to play the "fizz" sound for her. Then while I was playing, she used the 4 button
stomp to change the different amps and there were a LOT that had no problems at all. I feel that the fizz is only on just a few settings. I read where if I turn off my noise gate, that it will help with the fizz. Tomorrow I will try to plug it into different outlets in the house and different area's and see how that goes. I REALLY like most everything about this amp and I would really like to keep it.

I will report back on what happens when ive spent more time with it. The TV is off, but the amp is sitting right under a 55" tv, so moving it around and also trying a different guitar, as my MIM strat is a HSH, with many parts changed on the inside ( blenders and push pulls) so I will also test it on my stock American Standard as well. I have to others but they are folk/electric, but I can always give them a try as well.

Thank you to everyone here for the help and really great comments. I mentioned the virus as I had read it on other threads here, and the speculation about what the problem is is just disturbing. I will keep you updated as to my progress.
Mike


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Dec 20, 2011 1:57 am
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A virus on an amplifier? It is almost impossible.

Virus are not "cross platform" a windows virus cannot affect a device like an amplifier unless the device itself does not run windows under the same environment (read intel pc virus cannot infect a windows phone with an arm processor).

A virus that infect a Mustang amp must be a virus developed expressly for the Mustang itself that can also travel across PC. Not so easy to do... the main difficult would be that the virus developer (a human being) should have the same tools that fender has to develope mustang firmware. This limit almost only to the fender developers themself!

Also we should consider that not every amplifier that "fizz" has been connected to a pc.

Maybe there is an interaction problem between some features/setting , and the reason that the problem pop up month after the purchase is that the user has changed some setting occuring in the problem. Maybe it can be dealt the same way: changeing the setting or alternatively exclude the varius effect in the "affected" patch.

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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Dec 20, 2011 2:18 am
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"Maybe there is an interaction problem between some features/setting , and the reason that the problem pop up month after the purchase is that the user has changed some setting occurring in the problem. Maybe it can be dealt the same way: changing the setting or alternatively exclude the various effect in the "affected" patch."


Because its not every time I play, and only occurs on certain presets, Ive read where
the gain may be set too high on those presets, and also that I can use the computer hookup to turn off the noise gate. There is hope for me yet, as I do really love the sound of this amp and I would really like to keep it.

Thanks for the virus info, and all of your help.

Mike


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Post subject: Re: Mark IV with a bad "Fizz" problem. (solved)
Posted: Tue Dec 20, 2011 2:29 pm
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I am very very happy to report that my "fizz" problem is now gone !!!! I plugged it into a different outlet and only got a little, but then I was able to reach the computer with the usb cord and I did a firmware upgrade and turned off the "Noise Gate" on the ones that were giving me the trouble and I turned the gain down. I then plugged the amp into a third and final outlet and I tested the whole thing on every preset and there is no more "Fizz" anymore !!! YEA, I got a keeper !!!!

One problem I had was with the downloading back tracks, I would say gender and then choose ballads and the two that came up, I would ask to download "Power Balled" and when I clicked the button to download, it would just go back to the start with ALL of the
different choices. Oh well, I will read up on that on a different thread. I am just so happy that it works well. Its funny how I can put the guitar down and then if I click on the 00 through 99, I get so many different loudness's and some cause really bad feedback...guess I will have to tone those down and then save em.

So Im sorry if I cant say if it was the outlet or the firmware, but the problem is gone and Im happy, so thank you all for your help.

Mike


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Dec 20, 2011 3:24 pm
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Truly a Christmas miracle.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Dec 20, 2011 3:36 pm
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Sounds more like a case of electrical interference than fizz artefact- my MI plays up when its near a AC/DC transformer or connected to the laptop by usb, or a whole host of other spurious e-noise sources.

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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Dec 20, 2011 11:16 pm
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cormorant wrote:
Truly a Christmas miracle.



My MIV is my Christmas Present to myself, and I am just so happy that its ok now.
Once you have an amp that you know all the parts are working, you just dont want
to have to return it and get another that may have other problems. Now that my Fizz is gone, I am very thankful and now look forward to learning more about the the software and changing the noise gate and lowering the gain on most presets and then saving them.

My only problem now is the stand I bought for the amp, the back of the amp is hollow,
and the amp wants to lean back and does not rest on the upward arms of the stand.
I used two pieces of wood to help, but its just a shame that the arms are not longer as the stand is strong and nice. I paid 50 bucks at GC.


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Fri Dec 23, 2011 11:35 am
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So after doing the firmware upgrade and using the HSH guitar, everything seemed fine.
I decided to try out my american strat and the bad stuff is still there.

I was really happy thinking I had solved the problem, but I have not played the amp in a few days now as I am so discusted. Guess I will have to return the amp for another one but the guy from GC has not called me back yet sense Monday to say that a new shipment has come in. Crappy Luck !!!


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Post subject: Re: Mark IV with a bad "Fizz" problem.
Posted: Tue Jan 03, 2012 9:54 am
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Hey CT,

So you're noticing artifacts with your Strat but not with the HSH configured guitar?

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