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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Tue Feb 21, 2012 6:44 am
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RCB-CA-USA wrote:
bobio wrote:
Curious, does the Fizz only occur for you when your amp is plugged into the computer running Fuse? I rarely connect my Mustang III to the computer and these days only use Fuse to update the firmware on the amp. I generally make adjustments to my presets right on the amp. I am one of the ones with a Mustang III that definitely does NOT Fizz. Just curious if you have ever checked if your amp fizzes when it is NOT connected to the computer and Fuse.


I use the v head for practice and recording via a TASCAM US-144 MK II, Asus 6-core PC, powered Alesis monitors, and Sony headphones without a cab! I don't monitor the head from the Mustang USB, it's monitored via the 1/8" out so I can run a Zoom into the power amp and get both the Mustang DSP and the Zoom DSP simultaneously. So, the head is always hooked up to the computer one way or another. Tonight, I'll pull cables again to see which ones are noisy. The last time I did this, there was a different type of noise on each cable and a ground loop was identified and isolated to the v-head. If any noises crop up tonight, I'll hunt them down and post up! Last night, it was all playing, no noisiness, as it has been since the update and the hum de-bugger. The update, some how or another, and the hum de-bugger have simmered everything down dramatically -- the 2.5 update having a very noticeable effect first. Since the Advanced Amp button position changes with the 2.5 update and the fizz diminishes dramatically with a loss of lows and gain, the placement of the module may be the fizz culprit, the placement causing some sort of micro-chip ground loop, or one module amplifies the other modules noise in a bad way, fizz. Since the update was for the Champ tube amp, this would make sense. I'll betcha when they were testing the update for the champ, there was nasty fizz until they changed the sequence of the Advanced Amp module!


Hey Guys,

FUSE 2.5.1 provides Super Champ X2 support and that is the only change. If you don't have an X2, don't update to 2.5. Stick with 2.4.1 for now. I apologize for the confusion.

_________________
Loren Howard
Technology Support Lab
Fender Musical Instruments Corp.
TSL@Fender.com
480-596-7195

viewtopic.php?f=26&t=67723


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Wed Feb 22, 2012 5:56 am
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:cry:

Hello all

Got today my new mustang IV .
Love the sound of this beast......BUT NOT THE FIZZZZZZZ
I think it sucks :evil:

as a long time vox user i toth lets go for somting else (the fender mustang)

fender should be ashamed!!!! , after all allot of people have the same problem!!

date of mf 10- 2011.

I am now a blackstar tube lover!!


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Wed Feb 29, 2012 8:34 am
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Okay, So I got my MIII set up last night, all plugged in and updated. I went through all the presets and was very happy with all that I heard.

I tried oh so very hard to hear what everyone says is FIZZ. I'm not hearing it. What I do hear when not holding the strings muted is 60 cycle hum that is on all three of my amps, likely caused by my home's electrical.

I experimented with doing a ground lift, hum got worse. So the amp is really well grounded. I'm sure, just like with my keyboards, some noise is coming from the LCD backlight (is it fluorescent or LED? LED would make less noise). This may be why many are not hearing it on the I & II, NO LCD.

I also tested side by side with my Super Champ XD (2008 model) and the cycle hum was actually louder on it than the new MIII! Same guitar, same cord, same AC Plug, etc.

One of the ways that I was able to tame this in the past with my Fender Super Sonic (lots o tube noise there~!) was to have an MXR noise gate at the end of my overdrive/dist/fuzz pedals but before mod and time effects on my pedalboard. I did go and turn up the noise gate to low on several "clean" presets and it appeared to eliminate the 60 cycle hum while not playing but you could hear a bit of it when playing one note and letting it decay. How often do I do that while playing or recording? Almost never. The rest I can take care of with software and on stage I beg one audience member to come to me and mention it for a sock in the teeth! :)

But when playing and playing loud on clean amp sounds....this thing sounds gorgeous! I hope mine doesn't "develop" fizz, but as of right now my Mustang III purchased 2/24 from Musicians Friend HAS NO FIZZ, ALIASED DECAY OR DIGITAL ARTIFACTS. Did fender fix? I don't know. But I'm not hearing what others are calling the above noise.

It's a trade off. I'd rather have MIII with switches replacing a very extensive and heavy pedalboard, lower cost, headphone capability for late night practice and FUSE!!!!

Although, I plan to buy a Hum Eliminator soon, as I need one for my recording and keyboards too.

I hope this helps someone out there make the decision to give it a chance!


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Wed Feb 29, 2012 12:59 pm
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What's the manufacture date of your amp?


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Thu Mar 01, 2012 2:36 am
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I wonder if the Fizz will be history before this thread reaches 1,000 posts?


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Fri Mar 02, 2012 9:40 am
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ok so reading thru this what Im wondering is this....Is the "fizz" only noticable when recording or does it "fizz" during normal playing as well? Im lookin at getting one of these as a bedroom amp


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Fri Mar 02, 2012 10:24 am
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I have the amp now for 2 weeks and have not noticed the Fizz (yet) under ideal conditions...

I can produce some fizz 1. when I have the volume put all the way up on my Les Paul (it has the Burstbucker Pro which are very hot)... If I turn it down to about 7... All audio anomalies go away.. It also depends on the settings on the amp... some profiles are worse then others.. but generally if I turn down the guitar all profiles do not produce a fizz..

I have ALSO noticed fizz depending on the cable - My first cable was a 20 footer that was old and falling apart... forget it... I hear things come out of that amp I have never heard before from an amp - all sorts of weird computer like sounds... I changed to a NEW cheapo cable and the major anomalies went away BUT when I kicked the cord, moved around, etc. I would also get those weird anomalies (sounded like Fizz to me among other things) - I tried out my 5 footer (less resistance and better shielding)- and those issues went away completely.. though the cheapo cord was fine as long as you weren't kicking it or moving around.

THEN... I found that I had some buzzing at the frets which was causing anomalies... that was an easy fix..

The net net is... depending on the profile and other settings AND other factors you may get the fizz... I suspect (being a computer engineer) there is far more input sensitivity with these solid state amps than in the past - far more then the older tube style amps. Couple that with a DSP that interprets a Sine Wave to reproduce a sound... All sorts of issues could pop up in a less then ideal environment...

Of course, we can not rule out a faulty DSP which could easily introduce audio abrasions at the upper or lower frequency ranges... (you can think if it like getting Video corruption when your GPU is starting to go bad - video works BUT you get corrupted images or pixels only under certain conditions intermittently..)... I suspect for those that get it under ideal conditions this is most certainly the case -

Im wondering for those of you who get the Fizz in the ideal condition - Does it happen when you first turn on the amp? Does it happen when room temperature is extremely hot or extremely cold?

Anyway... so far Im very happy with my purchase - you can beat the sound that come out of this thing for the price...


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Fri Mar 02, 2012 12:44 pm
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stanglx wrote:
Im wondering for those of you who get the Fizz in the ideal condition - Does it happen when you first turn on the amp? Does it happen when room temperature is extremely hot or extremely cold?


If you have the fizz, it is there all the time. You don't have to do anything special to the amp. The "ideal condition" is when the amp is plugged in and turned on. Amp on, fizz on. On any clean amp setting, any time you play a low note it is accompanied by the fizz. The longer you hold that note, the louder the fizz gets until it sounds like there's a sitar playing the same note with you. It's just part of the amp. If you don't play those low clean notes, you won't mind it nor will you even really notice it. If you do, it will drive you bonkers.

It can show up at any time, from right out of the box, to several months down the road.


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Fri Mar 02, 2012 1:01 pm
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well in that case the Krank Rev Jr is lookin alot better to me. Ill just keep my pedals and stay old school. LMAO


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Fri Mar 02, 2012 9:25 pm
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Listen to this and judge for yourself:
http://soundcloud.com/user4316001/musta ... range-fizz

This is what mine sounded like live during living room playing.

loversmoon wrote:
ok so reading thru this what Im wondering is this....Is the "fizz" only noticable when recording or does it "fizz" during normal playing as well? Im lookin at getting one of these as a bedroom amp


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Sat Mar 03, 2012 8:41 pm
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bborzell wrote:
I wonder if the Fizz will be history before this thread reaches 1,000 posts?
No.

Or is it?


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Sun Mar 04, 2012 9:47 am
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brucefulton wrote:
Listen to this and judge for yourself:
http://soundcloud.com/user4316001/musta ... range-fizz

This is what mine sounded like live during living room playing.


Which preset do you use for this sample? And how close did you hold your guitar to potential magnetic and electrical field sources, like TV or the speaker of the Mustang III itself?


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Sun Mar 04, 2012 3:56 pm
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Took a while but my M III has developed the fizz.Every once in a while I will get a drop in volume and at times the gain on the high gain settings will drop to a very mild crunch and come back in.Amps ok for home practice but it is in no way a reliable gigging amp IMHO.


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Sun Mar 04, 2012 5:20 pm
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ruiafonso wrote:
brucefulton wrote:
Listen to this and judge for yourself:
http://soundcloud.com/user4316001/musta ... range-fizz

This is what mine sounded like live during living room playing.


Which preset do you use for this sample? And how close did you hold your guitar to potential magnetic and electrical field sources, like TV or the speaker of the Mustang III itself?


@ruiafonso

In the clip you hear fizz ... that sound is in no way related to noise picked up from such things as monitors, computers, magnetic/electrical fields etc.

Noise sounds completely different than fizz.

KenB


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Post subject: Re: Mustang III - Digital Aliasing (Strange Fizz Sound)
Posted: Sun Mar 04, 2012 5:53 pm
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Fender acknowledges that this is a fundamental artifact of the MIII-V amps, not caused by external or line interference. And, they have disclaimed warranty service for fizz-related issues.

ruiafonso wrote:
brucefulton wrote:
Listen to this and judge for yourself:
http://soundcloud.com/user4316001/musta ... range-fizz

This is what mine sounded like live during living room playing.


Which preset do you use for this sample? And how close did you hold your guitar to potential magnetic and electrical field sources, like TV or the speaker of the Mustang III itself?


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