Behringer B2030A Manuale Utente

TRUTH B2031A/B2030A User Manual

Fig. 2.6: 

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Rear panel control elements

The following control elements are found only on the B2031A:

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POWER MODE: This switch allows you to toggle between “ON”, “OFF” and 

“AUTO” power-up modes (see chapter 3.1).

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MUTE LOW: Disables the woofer for servicing and maintenance.

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MUTE HIGH: Disables the tweeter for servicing and maintenance.

Use the enclosed power cord to connect the TRUTH to the mains. To avoid ground 

loops, both speakers and the mixing console should be fed from the same outlet. 

For your convenience, the B2031A features an automatic power-up system which 

activates the TRUTH as soon as a signal is present on its input, and deactivates 

the speaker after signal pauses of more than five minutes (only B2031A).
Function: The switch for the automatic power-up system 

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 has three positions. 

When set to OFF, the speaker is completely switched off and cannot be activated 

with the POWER switch 

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. Position AUTO allows the automatic operation as 

mentioned above. In position ON, the B2031 is activated all the time and can be 

switched off only with switch 

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.

Now connect both speakers to your console by means of commercial XLR or 

TRS cables. Since the TRUTH is an active speaker system, instead of conventional 

speaker cables you will need normal TRS or XLR cables.
Connect the TRUTH to the control room outputs of your console, so as to be able 

to control the monitoring volume independently of the main mix level. If your 

console does not have such outputs, you can also use the main mix outputs. 

However, in this case the speaker volume cannot be set independently of the 

main mix level, i.e. you must adjust the monitoring volume on the TRUTH. 

Please consult the operating instructions accompanying your console to find 

out whether it has balanced or unbalanced outputs. Connect these outputs to 

the TRS or XLR 

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 input. If possible use the balanced connectors, so as to avoid 

interference and hum. It won’t help, however, to connect unbalanced outputs 

with balanced inputs. The benefits mentioned above will apply only when both 

inputs and outputs are of the balanced type.

Once the TRUTH has been connected as described above, you can activate the 

speaker with the POWER switch.

When the TRUTH has been connected properly and switched on, you can now 

turn up the console output that feeds the B2030A/B2031A. Provided you have a 

signal source connected, you now hear the audio material as it is played back by 

the TRUTH. The INPUT TRIM control 

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 on the rear panel is set to 0 dB ex-factory, 

i.e. unity gain, which is okay when you feed the TRUTH from a pro-level console. 

In this case, the TRUTH automatically operates at maximum level, provided that 

your console has been set up correctly and its output is set to 0 dB.
The LIMIT LED 

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 helps you control the level. It lights up as soon as overloading 

causes one of the internal protections to respond. The TRUTH doesn’t 

get damaged when the LIMIT LED lights up with occasional signal peaks. 

However, please make sure that it won’t light up all the time, because sooner or 

later this will activate the thermal protection system and temporarily mute the 

built-in amplifiers, to warn you that you are driving the TRUTH too hard. If so, 

you can reduce levels either on your console or using the INPUT TRIM control 

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. 

If the outputs on your console don’t provide studio-level signals, you can turn up 

the INPUT TRIM control. If you connect the TRUTH to the preamp output of your 

stereo system, it may also be necessary to raise the level on the TRUTH itself. 

To build up a rudimentary stereo system, you can directly connect the outputs of 

a CD player to the TRUTH’s inputs, and use the CD player to adjust the volume.

Since the sound of a speaker depends to a great extent on its surroundings, 

placing your TRUTH correctly is very important. Please try to follow these 

suggestions through. Your efforts will be rewarded with better sound and 

higher resolution.
Both speakers are built identically. There is no need to concern yourself with 

which speaker should be placed left and which speaker should be placed right. 

Place the TRUTH on a flat and stable surface, if possible use a dedicated speaker 

stand. In this way, the speaker is acoustically decoupled and won’t induce 

vibrations in nearby objects, which would affect the bass response. If you cannot 

use a stand, put the TRUTH on spikes or damping foam material. Another aspect 

is the distance between speaker and wall: keep the speaker away from the wall, 

as this would emphasize the bass response, particularly in corners, where two 

walls form an angle.
The BEHRINGER TRUTH B2030A/B2031A are so-called near-field monitors, 

which means that the impact of the room acoustics on the sound will be reduced 

considerably owing to the short distance between speaker and listener.

Fig. 3.1: Incorrect speaker setup

This illustration shows how you shouldn’t do it: you can clearly see that a portion 

of the sound bounces back from the walls before it reaches the listener’s ears. 

Thus, direct and reflected sound waves overlap which results in a coloration 

of the sound.