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Post subject: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 5:58 am
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I've bought the Mustang I amp last Thursday and have been testing for defects.

I noticed that when I do quick changes[finger a chord+strum once, change chord fast and finger that chord, repeat] from D to Em chord, there is sometimes a pulse tone made. I tried changing all amp settings with and without effects and still the tone is made. The pulse/tone goes away when I touch the upper thinner strings. If I don't touch it the tone persists with the chord ringing out. It is not that noticeable and I only detected it just yesterday. Was wondering if anyone else have the same pulse/tone problem.

Another problem is that for the preset setting below, I get a low of snow/static. It is really noticeable. Other presets don't have that problem so I hooked the amp to Fuse and found that if I remove the Distortion pedal, the snow goes away slightly. Does anyone else also have this kind of problem?
https://fuse.fender.com/mustang/preset. ... er-revival

Thank you for your time. I'm just worried about my new amp's life.


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Post subject: Re: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 6:43 am
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I'm not sure what you mean by "pulse tone". Do you hear it without distortion/high gain?

As for static, you say it's on a specific preset, so it's likely just a noisy preset. Some amp models are noisier, and this can be amplified further by the effects and other settings. You can try tweaking the noise gate to see if it helps.


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Post subject: Re: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 6:45 am
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Joined: Sun Jun 17, 2012 11:37 am
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Quote:
have been testing for defects

It's well known that looking for defects will make more non-defect things appear to be problems :) Not saying your amp doesn't have a defect, but rather than looking for them, why not wait until you just notice something intolerable? (Not preaching, voice of personal experience)

Quote:
sometimes a pulse tone

Sounds like a beat-frequency effect or other frequency modulation. Do you notice the same thing (albeit quieter) from the guitar directly when it's unplugged from the amp? Or if it's introduced by the amp, could be one of the amp's effects interacting with the frequencies of the notes being played. Hence damping one (or more) of the guitar strings stops the effect.

NB If you don't know what beat-frequencies are: play the 5th fret of (say) the A string with the open D string - should both be at the same pitch (if your guitar's in tune). Now bend the A string slightly to fractionally increase its frequency (or slightly detune either of the strings). You'll hear a 'pulsing' sound. The speed/frequency of the pulse is the same as the difference in frequency between the two notes. Is what you hear if you do that, the effect you're describing as a "pulse tone" ?

Quote:
I get a lot of snow/static

One of the ironies of an accurate modelling amp is that it attempts to reproduce the sound of the amp being modelled, warts and all. So yes, some of the presets, amp models and effects do include noise, sometimes quite a lot. (Personally I think this is undesirable. The noise was never meant to be there in the original amp; it was an unavoidable side-effect of the limitations of amplifier technology in years gone by. It would be nice if modelling amps had two modes: "authentic with noise" and "noise suppressed.") I suspect the distortion effect combined with the inherent noise in the model is too much for what you want to achieve. All I can suggest is that you play with all the settings to find a mix that gives you the tone you want with minimal noise.

If you don't have the pulse/tone and snow/static all the time, then (my opinion) it's very unlikely to be a problem with the (analog) parts of the amp itself - ie not an amp fault.


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Post subject: Re: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 7:37 am
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Thanks mpr and thanks a whole bunch to Scott for that informative post. May I PM you Scott if I have guitar questions in the future? I'm fairly new to electric :p

I bought the Roland Cube before this amp and it farts so much on the low thickest strings that I was scared of those bad limitations sounds. Hence, my critical inspections of my new mustang.

Anyways, for the pulsing, I tried it again with Scott's info take into account. The pulse only seldom happens when I rush to finger the Em chord and strum all 6 strings. The pulse only sounds when I press down on the 2nd fret of 4th and 5th strings[A and D fat strings], and press it down for a little "while" very slight unintentionally bending the 4th+5th strings towards my face. The pulse is made then and only in that condition so I guess it has to do with frequency overload of frequency mix ups. The pulse is like the beep sound you hear when a big truck backs up. The truck goes boop ... boop ... boop. But instead of simulatneous boops, it goes boooooooop along with the sound of a ringing Em chord.

As for the static/snow, I guess I can live with the limitation. I only mostly play on cleans and that static is only ever evident in that preset that I linked and one other preset that I forgot the name of.


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Post subject: Re: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 5:48 pm
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Honestly, it sounds like it's your playing style or guitar. Are all your strings in tune? sometimes an out of tune note can just scream out at you. Maybe try to hit the chord with no string bends.


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Post subject: Re: My Mustang I problems are common in all Mustang I?
Posted: Tue Jul 24, 2012 6:38 pm
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As to the noisy preset, definitely go into fuse and hit the button on the left side for Advanced Amp and try different settings of the Noise Gate. Personally, I can't stand that buzzing so I will live with some pretty high noise gate settings to get rid of it (or almost rid of it). Worth a try if it bothers you...


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