Behringer lx1-x User Manual

X V-AMP LX1-X User Manual

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.

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.

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.

The input of your BEHRINGER X V-AMP is a mono 1/4" TS connector. The line 

out/headphone output comes as 1/4" TRS stereo connector. The line output works 

with both balanced and unbalanced connections.

Fig. 8.1: 1/4" TS connector

For connection of balanced and unbalanced plugs,

ring and sleeve have to be bridged at the stereo plug.

cold (-ve)
tip

Fig. 8.2: 1/4" TRS connector

right signal
tip

Fig. 8.3: Headphones connector