Axxent AX-4120TS-D Посібник оператора - Сторінка 3

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REAR OF THE AMPLIFIER

1: On the far left you can see the large, sturdy mains

switch at the top. This is a rocker switch - in the upper

position on and the lower position off.

2: Below the mains switch is the mains input socket

according to the international IEC standard. Delibe-

rately, no permanently connected mains cable was

used here, so that the mains cable can be easily re

moved in case of a possible malfunction of the ampli-

fier. The mains cable is included with the amplifier.

The mains input socket also includes a fuse holder.

If the amplifier malfunctions, i.e. if you have switched

on the amplifier and the green „Power" LEDs do not

light up, the mains fuse may be defective. Please call

the technician and, if possible, do not replace it your-

self. Just in case: The mains fuse is 6.3 A (8 A for the

AX4240TS-D), slow-blow and has the dimensions

5x20 mm.

3: Digital Dante/AES67 input: To the right of the switch

and the mains input socket you will see an RJ45

socket. This is the input socket for a digital Dante/

AES67 signal. This digital input is fully compatible with

the usual Dante audio standard. In case of a digital

malfunction, there is a recessed reset button above the

RJ45 socket. This resets the set digital parameters

to the default settings. To the right of the RJ45 socket

are the digital/analogue selector switches. Here you

can select for each of the four amplifier channels

whether you want to use the digital or the analogue

input. Below the selector switch you will see a push-

button switch for selecting the digital input level. The

default setting is 0 dBu. In the depressed position

-9 dBu (see page 4)

axxent e.K. · Technologiezentrum Herzbachtal · Zum Wartturm 15 · 63571 Gelnhausen

fon: +49-6051-9165584 · fax: 9165585 · [email protected] · www.axxent.de

Operator's Manual AX-4120TS-D/AX-4240TS-D

(AX-4120TS-D AND AX-4240TS-D IDENTICAL)

Professional 4-channel power amplifiers

4: Analogue input sockets of the amplifier: The analogue

input sockets of the amplifier are designed as 3-pole

XLR sockets. These can be found on the lower side,

Input 4, Input 3, Input 2, Input 1. These inputs are

electronically balanced and have an input impedance

of 20 kOhm. Any standard microphone cable, desi-

gned according to international standards, can easily

be used here for connection to mixing consoles or

audio distribution units.

5: Between the connection Input 4, Input 3, and Input 2,

Input 1, there is a recessed pressure switch each.

These serve to activate the bridge mode of the respec-

tive input pair if required.

6: Output sockets of the amplifier: You see two 10-

pole, green terminal blocks. These are assigned with

the constant voltage outputs 70 and100 V as well as

with the low-impedance connections. In European

countries, 100 V operation is common. For constant

voltage operation itself, axxent has a manual „Basics

of 100 V loudspeaker systems". The connections are

designed as screw-terminal connections. As the screw

terminals are quite tight for safety, please use a small

tool (screwdriver or similar) to pull them out. Then you

can simply attach your stripped connection cables to

the terminals with a small slotted screwdriver.

7: Fan operation: The AX-4120TS-D/4240TS-D amplifiers

use a two-stage fan for rear-to-front airflow. The speed

of the fan is controlled by the temperature of the

internal transistor heat sinks. During high-performance

operation, the fan switches to level 2.