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User Manual for Lectrosonics DM84 - 8 Input 4 Output Digital Matrix Processor Click to enlarge the picture
Contents of the user manual for the Lectrosonics DM84 - 8 Input 4
- Product category: Install Sound Mixers Lectrosonics
- Brand: Lectrosonics
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Lectrosonics Install Sound Mixers
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User manual for the Lectrosonics DM84 - 8 Input 4 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Lectrosonics product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Lectrosonics user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Lectrosonics product will considerably shorten its lifespan!
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Product description The DM84 from Lectrosonics is an eight-input, four output matrix mixer, with extensive DSP both on input and output, and includes automatic feedback suppression, an automatic mixing algorithm and remote control capabilities. The unit is suitable for sound reinforcement applications, recording in boardrooms, courtrooms, worship centers, distance learning systems and hotels, and can function stand-alone, or as part of a larger LecNet2 system. DSP includes multiple filters, ADFE (automatic digital feedback eliminators), compressors, limiters and delay on every channel to facilitate signal processing for every possible situation. Processing at the inputs is able to compensate for microphone placement and signal variations, while each output has individual filters and a proprietary, adaptive time constant compressor/limiter to safely feed recorders or power amplifiers. The mixer matrix allows inputs to behave differently at each output. For example, a microphone input can be part of NOM (Number of Open Microphones) attenuation process, while operating as a direct signal for recording at a different output. Software is included with the DM84 and is used primarily for setup, with the configuration saved on file and into the unit's memory for actual operation. Once configured, the DM84 runs without a host computer. Extensive control capability is available with an intuitive command structure to allow control with USB or RS-232 connections or touch-panel control systems. Remote control, monitoring and setup can also be done via Ethernet connections. Up to 128 macros can be stored in internal memory. - Eight-in/four-out digital matrix processor in a stackable configuration
- Programmable front panel level controls with activity LEDs
- Six filters, six feedback eliminators (ADFE), compressor and delay on each input
- Nine filters, delay and compressor/limiter on each output
- USB and RS-232 interfaces for setup and comprehensive remote control
- Balanced, floating differential inputs and outputs
- Digital I/O ports for "daisy chaining" and to connect other LecNet 2 devices
- Proportional gain auto mixing algorithm with AutoSkew
- 128 global macros, each with up to 64 commands, and 115 characters per command
In the Box Lectrosonics DM84 - 8 Input / 4 Output Digital Matrix Processor AC Power Cable 2 x 12" CAT-5e Cables with RJ45 Connectors 2 x DB9 to TRS (Stereo Mini) Cable USB Cable 6 x 5-Pin De-Pluggable Connectors Lectrosonics Screwdriver Software CD-ROM One (1) Year Warranty Table of Contents
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Technical parametersLectrosonics DM84 Specs | Frequency Response | 20Hz to 20kHz | | Dynamic Range | Input: 96dB @ -50dBu input level; 102dB at all other levels (unweighted 20Hz to 20kHz)
Output: 105dB (unweighted 20Hz to 20kHz) | | Inputs | 5-pin Phoenix | | Outputs | 5-pin Phoenix | | Other Connectors | 4 x RJ-45 Expansion
1 x DB-25 Logic I/O
1 x USB
1 x 1/8" TRS Stereo Mini Serial | | Input Impedance | 2.5kΩ | | Output Impedance | 450Ω differential programmable outputs at line level
5Ω differential programmable outputs at microphone level | | Maximum Input Level | 20dBu | | Maximum Output Level | +20dBu | | Sample Rate | 48KHz | | Phantom Power | +15VDC, programmable | | Crosstalk | Line Level -103 dB
Mic Level -101 dB | | THD + N | 0.02%, nominal input level | | Dimensions (WxDxH) | 19" 1U Rackmount | | Weight | 3.6 lbs (1.6kg) | | Specialties | Up to three units can be stacked to create a 24x 24 mixing matrix | | | | Package Weight | 9.25 lb | | Box Dimensions (LxWxH) | 24.4 x 14.4 x 6.7" |
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