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AEQ-SST Shape Shifter Pre Amp
FirstBassman
#1 Posted : 11/21/2008 5:03:10 PM
FirstBassman


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What exactly do the Shape and the Phase controls actually do?

Thanks.
tenstrum
#2 Posted : 8/3/2009 3:12:31 PM

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I would like to know this as well as I have just bought an EWB205WENT and it did not come with any documentation that stated what those 2 functions do.

It would be nice if someone from Ibanez would answer this question.
MaxOfMetal
#3 Posted : 8/3/2009 3:23:24 PM
MaxOfMetal


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Have you guys tried plugging in and playing with those controls? You'll notice the "Shape" control will "shape" the tone, while the "Phase" control is used to control feedback in live/plugged-in situations.
Current Ibanez "Heard":
91' UV7BK "Green Dot"
91' UV7PWH
tenstrum
#4 Posted : 8/4/2009 8:29:57 AM

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Obviously the Shape will "shape" the tone, but I want to know exactly how it "shapes" the tone.

I found this on the Fishman website about the Phase button:
"Phase • Use the Phase switch to improve bass response at low volume and
suppress feedback at high volume. If feedback occurs, push the Phase switch. If
feedback recurs when you change your location, press the switch again."

I'm assuming that it full fills that same functionality on this pickup as well.
tenstrum
#5 Posted : 8/5/2009 9:19:29 AM

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Bump.
Still waiting on an answer.
MaxOfMetal
#6 Posted : 8/5/2009 12:13:55 PM
MaxOfMetal


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There isn't much info on the web regarding the AEQ-SST (it is a basic proprietary pre-amp after all). The shape control functions a little differently on just about every acoustic I've played, and many don't have a "shape" control. I really recommend you plugging your guitar in and playing with the "Shape" control, it's the only way to truly judge it's function, at least it's necessity and use. If it's like any of the acoustics I've played before it controls the overall tone (think of a tone knob on a TS808 or DS1, an EQ filter of sorts). It will help to "Shape" the overall contour of the sound.

As for the phase, I ,and your own research has already answered that.
Current Ibanez "Heard":
91' UV7BK "Green Dot"
91' UV7PWH
tenstrum
#7 Posted : 8/5/2009 1:54:50 PM

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I'd like someone from Ibanez to way in.
I really want to know what frequencies it controls, cuts, or boosts.
fngrstyl
#8 Posted : 8/11/2009 9:08:11 AM
fngrstyl


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Usually shape or contour controls alter the midrange in some way beyond the normal boost or cut function, sometimes by selecting the midrange frequency itself, sometimes by limiting the amount of effect one slider has on the other, so that you can, for example, boost the bass while keeping the mids where you like 'em. I don't know which scheme the shape shifter uses, but those are the typical ones. Three bands of EQ isn't much, but, by including this feature, it expands what you can do with it. Phase, in acoustic speak, is an antifeedback feature. I'm not sure electronically how it is accomplished, but it is supposed to keep the electronic signal slightly out of sync with string/ guitar top vibration, so that what comes out of the speaker doesn't roesonate with the guitar and cause feedback.
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