X v-amp, Tuner, 2 reverb – Behringer X V-AMP User Manual

Page 11: 1 tuning your guitar, 2 setting reference pitch “a

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11

X V-AMP

AUTO WAH: The American funk in the ’70s proved that auto

wah had many possible applications. Instead of regulating the

filter frequency with your foot, our effect does this automatically,

depending on the signal level. In doing so, our effect is similar to

the EHX MuTron III in the up position.

The second parameter determines how quickly the filter is

shifted; the third parameter selects the effects block (1 - 4).

P-FUNK’N: This is our attempt at replicating the legendary

MuTron III, and we succeeded! The most famous user of this

effect is probably Bootsy Collins. The MuTron III had an up/down

switch. Here, the effect resembles the MuTron in the down

position.

The second parameter determines how quickly the filter is

shifted, while the third parameter determines the effects block

(1 - 4).

6.1.3 Special effects

WAH WAH: The legendary Wah Wah effect owes its fame

mainly to Jimi Hendrix. Describing it is certainly more difficult than

simply listening to Hendrix using it on Voodoo Chile.

+

Wah Wah is not available when auto wah, P-Funk’n

or pitch bend are being used.

COMPRESSOR: Our simulation is based on the well-known

MXR Dyna Comp. A compressor limits the dynamic range of a

signal, in that the signal level is reduced as soon as a pre-

determined threshold is exceeded. A compressor lets you

achieve noticeable and creative sound effects. How strongly

the compressor kicks in is controlled using ADJUST, allowing

you to achieve apparent sustain). When ADJUST is turned all the

way to the left, the compressor function is deactivated.

The second parameter (attack) controls the amount of time

that the compressor needs to react, once the threshold has

been exceeded. If you set up a short attack time, the compressor

will react very fast.

NOISE GATE: Noise gates are used to remove or reduce

noise or other interference. Guitar signals in particular are very

sensitive to interference. Not only do guitarists often use high-

gain settings but guitar pick-ups can amplify unwanted inter-

ference. This can be painfully apparent during breaks in the

music. And how does a noise gate work? It simply mutes the

signal during breaks, eliminating any interference at the same

time.

The ADJUST control determines, when the noise gate starts

processing. This control lets you decide if you want to suppress

background noise more or less pronouncedly. When ADJUST is

turned all the way to the left, the noise gate function is deactivated.

The second parameter (release) determines the time that the

noise gate remains open after it had fallen below the threshold.

If you set up a short release time, this means that the noise gate

will suppress the signal very soon after it detects noise.

6.2 Reverb

The reverb is still one of the most important effects in a mix or

at a live event. BEHRINGER offers you four different reverb

programs, so that you can always find the kind of reverb that fits

your excact situation:

Ambience: short room simulation without reverb tail.
Cathedral: a long, rich reverb, like in a cathedral.
Spring: typical sound of a classic spring reverb.
Reverb: universal, warm reverb simulating a concert hall.
ADJUST controls the reverb intensity, while the second

parameter determines decay.

A/DAä, Bossä, DyTronicsä, Electro Harmonixä (EHX), MXRä, Digitechä, Voxä as well the

names of musicians and bands are registered trademarks of their respective owners and are in

no way associated with BEHRINGER. The brand names appearing here are mentioned solely to

describe the character of sounds and effects created in the X V-AMP.

7. TUNER

The integrated tuner is activated/deactivated by simultaneously

pressing both footswitches. In doing so, the X V-AMP is switched

into bypass mode. Use ADJUST to modify bypass volume.

7.1 Tuning your guitar

The chromatic tuner automatically recognizes the frequencies

of all the standard guitar notes. For the a string this means a

frequency of 110 Hz. When you plug your guitar into the

X V-AMP and play an open string, the tuner will recognize and

display the note. Since the tuner uses an auto-chromatic scale,

it can also recognize semi-tones, which are shown with a “b” in

the display.

It may happen, however, that a note is displayed as “A” but is

actually slightly out of tune. This is shown by at least one of the

four LEDs at the foot of the display lighting up. In certain cases

even two of the LEDs may light up, which indicates that the pitch

of the note played lies between the pitches represented by the

two LEDs. When the circular tuner LED in the middle lights up,

this means the note played is in tune.

7.2 Setting reference pitch “A”

To give you maximum freedom for tuning your guitar, you can

change the preset reference pitch “A”. For clarity’s sake, let’s

look at this in more detail.

The so-called concert pitch “A” has been raised steadily over

time. For example, the tuning forks used by Bach, Händel or

Mozart were 415, 420 or 421 Hz (oscillations per second). Today’s

orchestras tune to “A” at 444 Hz, and the Berlin Philharmonic

Orchestra lead the field with their own concert pitch “A” at

447 Hz.

The reference “A” on your X V-AMP has been factory-

programmed at 440 Hz. If you are going to play with a big orchestra

tuning their instruments to a reference pitch of 444 Hz, you will

need a function that allows you to change your reference pitch.

To activate this function, switch on the tuner by pressing both

footswitches simultaneously. Then, keep TAP pressed down to

start calibrating the tuner. The display will show “40”, which

means 440 Hz. Use ADJUST to raise or lower the reference

pitch by up to 15 Hz. The display always shows the last two

digits as the first digit is always 4. To quit, simply release TAP.

Any changes will be stored automatically. The tones for the

other strings on your guitar will automatically be adjusted to the

new reference pitch.

7. TUNER

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