UDE AX-459 Manual Del Usuario página 33

AX-459
Description
The AX-459 amplifier
functions of the apparatus. This particularity, along with the universal signal input system, which can be
configured by the engineer installing the system, make for a reliable, versatile and easy-to use device.
Its mechanical and electronic design are based on the criteria of functionality, toughness and reliability
required in any professional sound application. Its standard sizes (standard 19", 3 U) allow it to be linked to
other elements in the
compact unit with reasonable space-saving. Its surround housing is protected by a special anticorrosive
treatment.
The most innovative features of this unit are:
- Controlled power-up
The system limits the power peak absorbed from AC mains which takes place when the amplifier is
powered up. In this way it prevents damage and other trouble, such as the activation of automatic
protection switches or the blowing of fuses in the electrical panel, which are typical in other high-power
units.
- Automatic and manual adjustment of load impedance.
The installing engineer may access the load impedance menu and make the adjustments automatically or
else select the right value manually in each case: 4 , 8 , 70 V line (11 ) or 100 V line (22 ).
- Microphone volume control, auxiliary, treble and bass via the keyboard, and which may be
memorised.
This function is highly useful, since it makes it possible to record in the non-volatile memory any
adjustments made for different utilisation conditions, thereby optimising the public address system in
applications in fluctuating acoustic conditions. This is mainly due to variations in the size of the audience,
different speakers, background noise in the area, etc.
This function allows the user to select the adjustments later, simply by pressing a button on the keyboard.
Volume can be increased slowly or reduced quickly.
Similarly, the ajustment of microphone volume, treble and bass is totally independent of auxiliary volume,
treble and bass adjustment, which means that on switching from one input to another, either by keyboard
or remote control, the corresponding settings will be maintained.
- Protection from keyboard tampering
The installing engineer may program a password to access the installer menu to prevent unwanted
adjustments.
- Forced horizontal air flow system controlled by thermostat at 65 C
This makes it possible to mount the
space optimization.
- Display the different statuses of the unit
Luminous display for adjustments, programming, microphone volume level, auxiliary volume level, treble,
bass and messages.
- Operating mode
The AX-459
Mode 1(standard).
amplifier at will.
Mode 2 (programmed).
bass of the amplifier set in the installation process.
In this mode the user can select each one of the 8 programmes that are preadjusted in the installation
process.
includes inside a microprocessor that digitally controls and supervises the main
UDE range or others, such as music sources, etc.... making up a homogeneous
amplifier can operate in two different modes, as per option.
The user can modify the microphone volume, auxiliary volume, bass and treble of the
The user cannot modify the microphone volume, auxiliary volume, treble and
AX-459 amplifier on a rack using accessory WX-3 , with maximum
610.105A
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