1. INTRODUCTION The MS424 is a 4 channel 1 into 4 Unity Gain Active Microphone Splitter in a compact 1U self powered case. The MS424 is designed for applications where multiple feeds are required from one set of microphones without the signal degradation experienced with most passive splitting solutions.
483 (19") W, 208 (8.2") D, 44 (1.75")H Dimensions: Unit: 4kg Shipping: 4.8kg Weight: Operating: 0°C to 50°C Temperature Range: Storage: -30°C to 75°C 0dBu = 0.775Vrms Owing to our continued development programme modifications may be made to existing products, features or specification without notice. MS424...
3. INSTALLATION 3.1 INSPECTION AND UNPACKING The MS424 has been carefully packed at our factory in a carton designed to withstand handling in transit. Should the unit appear to have been damaged in transit, notify your dealer immediately and do not discard any of the packing.
A protective earth connection, made by way of the earth conductor in the power cord, is essential for safe operation. 3.5 EXTERNAL CONNECTIONS The Inputs on the Model MS424 are female XLR type connectors. These are wired as follows - XLR-F...
1 for unbalanced operation. 3.6 SIGNAL LEVELS The input to output voltage gain on the MS424 is 0dB. Maximum input signal level will depend on the setting of the Pad switch. 0dB (down) position is for microphone levels and maximum input level is 0dBu.
4. WARRANTY Your MS424 has been manufactured to a high standard using quality components. If correctly installed and operated the unit should give years of problem free operation. However in the event of a defect in material or workmanship causing failure of...
This power can be internally or externally supplied. Pad switch Inserts a 20dB pad into the signal path. To be used when Line level signals are inputted to the MS424. OUTPUT 3 connector Transformer balanced and isolated output. OUTPUT 4 connector Transformer balanced and isolated output.
Transformer balanced and isolated output. 6. OPTIONS 6.1 CONFIGURATION Each channel of the MS424 consists an input stage and an output stage. These are connected internally by jumper links which allow the MS424 to be configured for the following options -...
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The channel Input is disabled and it's output connected to the internal bus. The output stage now outputs signal from the internal bus. Input stage Output stage Channel +48V jumpers Channel +48V jumpers 8/12 Channel +48V jumpers 12/16 Channel +48V jumpers MS424...
Output stage Block diagram of a MS424 channel showing LINK switch for Output 1. The two bus jumpers allow the MS424 to be configured for 2 x 8, 1 x 12 (with 1 x 4) and 1 x 16 outputs.
TRANSFORMER BALANCED INPUTS Transformer balanced inputs can be fitted to provide galvanic isolation between inputs and outputs. Although normally a factory build option, transformers can be retro fitted by an Audient service centre. MS424...
The active design of the MS424 ensures that there is not loading or signal loss and as each output is independent a fault on one will not affect the others.