Behringer europower ep1500 Manuale Utente

EUROPOWER EP1500/EP2500

2. CONTROL ELEMENTS

These are the Speakon

outputs (channels 1 and 2). When

running the unit in mono-bridged mode (see chapter 2.3.5),

please use the channel 1 output exclusively. For further

information on Speakon

connectors please refer to

chapter 4.1.
These are the output terminals (channels 1 and 2). When

running in mono, please make sure to use both middle

connectors to connect your loudspeaker.
BREAKER (automated fuse). After eliminating the cause

of faulty operation, simply depress the BREAKER and

power up the unit again. The BREAKER acts in place of

common discardable fuses.

Attention: Before engaging the BREAKER switch,

you should power down the unit (POWER switch

set to OFF)!

Power is supplied via an IEC connector. The matching

cable is provided with the unit.
SERIAL NUMBER of your EUROPOWER. Please take the

time and send us the completely filled out warranty card

within 14 days of the date of purchase. You may also

MODE SWITCHES functions (

2.3 Configuration switches (MODE SWITCHES)

Fig. 2.3: DIP-switches

2.3.1 Clip limiter

When the input signal connected to your amp is too high, you

end up with a distorted output signal. To prevent this, both

channels of your EUROPOWER feature a clip limiter that can be

engaged or disengaged selectively. The limiters automatically

recognize distortion and lower amplification until distortion is

reduced to a tolerable level. To preserve the dynamic

characteristics of the signal when low distortion levels are

occurring, the clip limiters function with moderate suppression.

Use switches 1 (ch. 1) and 10 (ch. 2) to activate the clip limiters.

When using broadband loudspeaker systems, the clip limiter

reduces high frequency distortions which occur when an

amplifier is overloaded. The drivers are thus protected from

being damaged.

2.3.2 Input filter

The LF (high-pass) filter removes frequencies below 30 and

50 Hz respectively. The reproduction of the signals bass portion

is thus optimized, since ultra-low, distracting frequencies are

eliminated, and more power is available for the reproduction of

the wanted segment of the signal. Engaging and disengaging the

filters is done by using the switches 3 (ch. 1) and 8 (ch. 2).

Switches 2 (ch. 1) and 9 (ch. 2) determine the cut-off frequency.

As long as the filter is disengaged, frequencies below 5 Hz are

cut to prevent damage.

You should set up the filters so they best suit the frequency

response of your speakers, since some speakers (e.g. bass

reflex speakers) are particularly sensitive to over-excursion

below the listed frequency range.

The 50 Hz filter should be engaged when using broadband

speakers because the filter provides a moderate amplification in

the 100-Hz range, resulting in a fuller sound. The 30 Hz filter is

ideally suited for subwoofer operation as well as for broadband

cabinets. The Off setting should be used only for special

applications (e.g. studio applications), in which recognizing and

subsequently removing infra-sound is important.

2.3.3 2-channel mode (stereo)

Both channels of your amp function independently from one

another in this operating mode, and each has its own input signal.

Two independent speakers are connected at the outputs. To

activate this operating mode, please set the MODE SWITCHES 4

and 5 to STEREO.

When running the unit in two-channel mode, the

switches for mono-bridged mode must be

disengaged (dip switches 6 and 7 in left position).

2.3.4 Parallel mode

Running in parallel mode enables you to feed a signal via one

of the inputs into both outputs. Each channel drives its own

loudspeaker with independent amplification, filter and limit

characteristics. To link the inputs, set the MODE SWITCHES 4

and 5 to PARALLEL INPUTS.

Mono-bridged mode switches must be dis-

engaged when running in parallel mode.

With inputs set to parallel, you can use the remaining input

connectors to feed the signal into additional amplifiers. This

means that the channel 2 inputs function as outputs.

The parallel mode is well-suited for applications in which driving

two speakers with the same signal but with separate amplification,

filter and limiter settings is desired.

2.3.5 Mono-bridged mode

This operating mode enables you to add up the respective

voltage of both channels and use it to drive a single loudspeaker.

The voltage is therefore doubled, the peak power is quadrupled,

and program power is roughly three times as high as that of the

individual channels. The input, output, gain, filter and limiter

controls belonging to channel 1 are used when running in mono-

bridged mode. The controls belonging to channel 2 are not used.

To prevent signal cancellation due to internal phase inversion,

the GAIN control belonging to channel 2 must be turned to its left-

most position.

Use this operating mode to route the power from both channels

to a single 8-Ohm or 4-Ohm load. To do so, set up the switches

6 and 7 to BRIDGE MODE ON. To use the binding posts as your

output, you MUST use the two middle posts only.

The mono-bridged mode puts added demands on

amplifier and speakers. Excessive distortion may

occasionally completely mute the amps outputs

as well as cause permanent damage to the

speakers. Please assure that your speakers

(minimal impedance 4 Ohms) as well as the cables

used can handle the extra power generated in this

mode.