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Post subject: Mustang III v2 feedback problem
Posted: Wed Jan 14, 2015 4:19 am
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Hi

Am a newbie so please be gentle.

Have bought one of these amps, (Mustang iii v2) and really pleased with its features, but come rehearsal time with my band, as soon as the Master level is turned up to about 4, most of the presets howl and squeal at me. It doesn't happen on some presets though and I find I have to rehearse with a sound I don't want.

It's a punk band so any sound I use (and I've downloaded a few from the fuse community) is going to have some distortion on it. A friend told me it was the gain stage that needing turning down, but of course that cleans up the sound, and when I tried it it still fed back.

Unfortunately, this isn't an issue I can easily resolve at home as it only happens when the amp is at a rehearsal level and turning it up that loud at home is going to get me evicted, so experimentation in my own time isn't going to be of much assistance.

So, I was wondering if anyone had this amp they could provide some sort of technical assistance so I could try it at next rehearsal?

As you can probably gather, my technical knowledge isn't that great so simplified advice would be much appreciated.

Thus far I have;

Turned down the gain
stood many many feet away from the amp
Tried using the volume control (which apparently sets all presets at the same output level)
mucked about with the tone controls and switched between pick ups on my guitar
Getting the bass player to turn down his bass so I can turn down my master volume (this works but then the drummer can't hear us)

all of the above to no avail. I did think about copying the settings for the one sound I'm using that doesn't feed back and tweaking it a bit to get what I want out of it, but as explained above I can only really test this out at rehearsal, so...

I wonder if the more technically minded might advise me on what settings within each preset to avoid using high levels of, without compromising the punk sound I want. I.E. is a reverb setting likely to exacerbate the problem? Ideally I want chorus, a good splash of it, and a very slight delay.

I am using a Squier Stratocaster, (sorry!) and no pedals apart from the two button footswitch that came with the amp.

Thanks for reading and any help greatly appreciated

Ubertino


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Post subject: Re: Mustang III v2 feedback problem
Posted: Wed Jan 14, 2015 10:55 am
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I have an MIII and an MIV, I can get a lot of volume out of them but how loud are you guys playing?

and what are you using for a guitar (brand/pickups etc) possible the pickups are micro-phonic?

perhaps just go with trial and error until you find the settings that fit your needs.

presets with High Gain, loads of volume and perhaps sub-par pickups (not sure about that yet) can all be factors.


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Post subject: Re: Mustang III v2 feedback problem
Posted: Wed Jan 14, 2015 4:37 pm
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Maybe a stupid question, but I'd just like to get one thing clear from the get-go.
Does it ever happen when you're playing through headphones, or is it "real" feedback, through the speaker and guitar?

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Post subject: Re: Mustang III v2 feedback problem
Posted: Thu Jan 15, 2015 2:46 am
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First, have you confirmed that the feedback is related only to the amp? I'm assuming you're using some kind of mic for the vocals. It's entirely possible that the feedback could be being produced by the crossfeed of your amp into the vocal mic and not directly from your guitar. If your rehearsal space is small or naturally echo-ey like a garage or basement with untreated walls or flooring, this is a good possibility. To confirm it's solely your guitar turn off all mic's and then turn up the guitar and play.

Since you're using a solid body guitar you should be fairly resistant to feedback from the guitar, but again that depends on a lot of factors such as rehearsal space, how you're positioned in relation to the amp, sensitivity of your pickups, etc. Bottom line is volume is volume regardless of gain. Gain affects the overdrive aspects of the tone but it's overall volume that causes feedback. Different presets have different volumes regardless of the master volume setting. It's based on the amp type and the volume setting within that preset.

But my main concern is the volume you're playing at. You said you get the feedback when you get your master voume up to around 4. That certainly has a LOT to do with your feedback problem. I play a Mustang IV and I have NEVER turned it up above 3 1/2. Our rhythm guitar player uses a Mustang III and normally keeps his amp at just a tad above 3. You're not playing at Madison Square Gardens...your PRACTICING. Part of being a musician and being in a band is everyone's discipline in managing volume in order to get a good stage mix so you can blend together and make MUSIC, not NOISE. One of the key advantages to an amp like the Mustang is that you can get the tone you need without the volume. A lot of young bands use volume as a substitute for poor technique and skills. You don't want to be one of those bands. I'd suggest you seriously look at getting your band volume under control first, not only for addressing this feedback issue, but also for becoming a band rather than a noise generator.

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Post subject: Re: Mustang III v2 feedback problem
Posted: Fri Jan 16, 2015 9:26 am
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Hi yeah, I'm playing with a korean squier strat. I've tried to get the band to play quieter but the drummer complains that he can't hear us, but I think at the moment that is a really good idea. Thanks for input huys, I'll let you know how the next rehearsal goes on the 25th


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Post subject: Re: Mustang III v2 feedback problem
Posted: Fri Jan 16, 2015 11:17 am
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Age old dilemma, you're at the mercy of how hard your drummer is playing.

if your drummer could try and bring back his attack, but if with the music your playing,, GOOD luck there.


the pickups are probably just not resistant to micro-phonic feed back. You might want to make sure you've got your noise gate set full on in presets you're using, or pick one up that's in a stomp box config.


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Post subject: Re: Mustang III v2 feedback problem
Posted: Fri Jan 16, 2015 9:27 pm
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I figure your guitar is a SSS config Strat?
The feedback issue is most likely your pups. You're rockin High Gain settings with Single Coils.
Get some buckers and you'll find the High Gain is no problem-o 8)

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Post subject: Re: Mustang III v2 feedback problem
Posted: Sat Jan 17, 2015 1:41 pm
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Strat-Slinger wrote:
I figure your guitar is a SSS config Strat?
The feedback issue is most likely your pups. You're rockin High Gain settings with Single Coils.
Get some buckers and you'll find the High Gain is no problem-o 8)


Ding ding ding!!! I think this is going to be the winner.

Single coil pickups are noisy, and can get feedbacky with tons of gain. This happens to me as well with my MIII. My Strat, Tele, and my p90 loaded guitars make all sorts of noise when the gain goes up (or a cranked up pedal is turned on), esp when using models such as the 90's metal and metal 2000. I play sitting right in front of the amp, so screeches and squeals are a real possibility... ( the #1 reason I quickly replaced the liquid solo preset as the default, Even though I loved it. The feedback upon turning the amp on was an ear killer and rather neighbor unfriendly.)

As others suggested, try the noise gate first. if that doesn't work, is there some combination of amp model and effect that would get you the tone you want without the noise?

I tend to switch to a humbucker loaded guitar for really gainy sounds, but that is a moot point if YOU WANT that single coil Strat tone. ( or if spending the loot on another guitar isn't a real option)


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Post subject: Re: Mustang III v2 feedback problem
Posted: Sat Jan 17, 2015 5:15 pm
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Location: In the Land of "Stratocaster"
pyroman wrote:
Strat-Slinger wrote:
I figure your guitar is a SSS config Strat?
The feedback issue is most likely your pups. You're rockin High Gain settings with Single Coils.
Get some buckers and you'll find the High Gain is no problem-o 8)


Ding ding ding!!! I think this is going to be the winner.

Single coil pickups are noisy, and can get feedbacky with tons of gain. This happens to me as well with my MIII. My Strat, Tele, and my p90 loaded guitars make all sorts of noise when the gain goes up (or a cranked up pedal is turned on), esp when using models such as the 90's metal and metal 2000. I play sitting right in front of the amp, so screeches and squeals are a real possibility... ( the #1 reason I quickly replaced the liquid solo preset as the default, Even though I loved it. The feedback upon turning the amp on was an ear killer and rather neighbor unfriendly.)

As others suggested, try the noise gate first. if that doesn't work, is there some combination of amp model and effect that would get you the tone you want without the noise?

I tend to switch to a humbucker loaded guitar for really gainy sounds, but that is a moot point if YOU WANT that single coil Strat tone. ( or if spending the loot on another guitar isn't a real option)


If you dig Single Coil sound and don't want to go with a full humbucker type of tone... You may want to upgrade the stock pups with either:
A) a set of Single Coils with Reverse Wound middle pickup... you can ride the quack tones... unfortunately, you're limited to positions 2 & 4 only for "Noiseless" with lots of gain.
B) go with a decent set of "Stacked" pups... like Fender "Hot Noiseless" pups... or something similar...

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