Safety And Environment - AKG DFM4x4 Mode D'emploi

1. Spill no liquids on the equipment and do not drop any objects through the ventilation slots in the equipment.
2. The equipment may be used in dry rooms only.
3. The equipment may be opened, serviced, and repaired by authorized personnel only. The equipment contains no
user-serviceable parts.
4. Before connecting the equipment to power, check that the AC mains voltage stated on the supplied AC adapter
is identical to the AC mains voltage available where you will use the equipment.
5. Operate the equipment with the supplied 20-V AC adapter. Using adapters with a DC output and/or a different
output voltage may cause serious damage to the unit.
6. If any solid object or liquid penetrates into the equipment, shut down the sound system immediately. Disconnect
the AC adapter from the power outlet immediately and have the equipment checked by AKG service personnel.
7. If you will not use the equipment for a long period of time, disconnect the AC adapter from the power outlet.
Please note that the equipment will not be fully isolated from power when you set the power switch to OFF.
8. Do not place the equipment near heat sources such as radiators, heating ducts, or amplifiers, etc. and do not
expose it to direct sunlight, excessive dust, moisture, rain, mechanical vibrations, or shock.
9. To avoid hum or interference, route all audio lines, particularly those connected to the microphone inputs, away
from power lines of any type. If you use cable ducts, be sure to use separate ducts for the audio lines.
10. Clean the equipment with a moistened (not wet) cloth only. Be sure to disconnect the AC adapter from the power
outlet before cleaning the equipment! Never use caustic or scouring cleaners or cleaning agents containing alco-
hol or solvents since these may damage the enamel and plastic parts.
11. Use the equipment for the applications described in this manual only. AKG cannot accept any liability for
damages resulting from improper handling or misuse.
1. The AC adapter will draw a small amount of current even when the equipment is switched off. To save energy,
disconnect the AC adapter from the power outlet if you will leave the equipment unused for a long period of time.
2. When scrapping the equipment, separate the case, circuit boards, and cables, and dispose of all components in
accordance with local waste disposal rules.
The DFM4x4 offers some of the most versatile multichannel signal processing available. With 4 channels of audio
signal processing plus Automatic Digital Feedback Elimination (ADFE) on each channel, the DFM4x4 is a compact
solution for a wide variety of sound system applications. With 13 Programmable Inputs and 8 Programmable Outputs
configurable into 8 non-volatile pre-set memory positions the DFM4x4 assures you complete flexibility.
For more details refer to the DFM4x4 Owner's Manual. If you are still haunted by unanswered questions, call the AKG
product specialist for SR products, Mr. J. Bakker at 43 1 866 54 1395 or email to bakkerj@akg.com
1 x DFM4x4
1 x AC adapter
1 x CD-ROM with "LecNet for AKG" software
1 x RS-232 cable
1 x LecNet expansion cable
Connect your signal sources to the INPUTS on the DFM4x4 rear
panel.
The DFM4x4 is equipped with 4 balanced inputs but does accept
unbalanced signals.
Connect the rear panel OUTPUTS to the desired inputs.
The DFM4x4's OUTPUTS are balanced.
In order to use an output in the unbalanced line level mode, take the signal from the "+" OUTPUT connection and
the OUTPUT ground.
Important: Leave the "-" output floating.
Connect your computer to the DFM4x4 with the supplied RS-232 cable.
1. Connect the cable on the supplied AC adapter to the PWR IN jack on the DRM4x4 rear panel.
2. Connect the AC adapter to a convenient power outlet.

1 Safety and Environment

2 Description
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1.1 Safety
1.2 Environment
2.1 Introduction
2.2 Packing List
3 Interfacing
3.1 Audio Inputs
Fig. 1: Connecting un-
balanced (left) and balanced
(right) signal sources.
3.2 Audio Outputs
3.3 Connecting to the
Computer
3.4 Connecting to
Power
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