Pro Audio Systems

• Technical Specifications

• Voltage 12V a.c. 1.5A max (via plug top power supply supplied)
• Power consumption <18VA
• POWER REQUIREMENTS
• MICROPHONE
• Connector type 2 x 3.5mm mono jack
• Input Impedance 2KΩ
• Sensitivity 2-5mV
• Phantom +8V
• LINE
• Connector type 2 x phono - allows the connection of one SCART to double phono lead (supplied) or similar
• Input impedance >4kΩ
• ALERT Closing a volt-free switch across this input generates a pulsed tone through the loop
• INPUTS
• Type Current mode
• Loop connector Releasable two pole friction connector
• Cable 1mm2 tri-rated cable (supplied)
• Loop coverage (square room) 50m2 max. (e.g. 7m x 7m)
• Loop coverage (rectangular room) Up to 100m2 when shortest side of loop is no greater than 5m (e.g. 5m x 20m)
• Loop drive current 3A peak; 1A average
• Loop impedance 0.2 to 2Ω @ 1kHz
• OUTPUT
• Bandwidth 100Hz to 8kHz
• Input stage dynamic range 33dB
• Distortion <0.5% THD
• The DL50 amplifier includes an amplitude compression stage that limits overload and has a dynamically variable ratio from 1:1 to10:1
• PERFORMANCE
• LED indicators Input signal (red)
• Loop strength meter (green to yellow to red)
• Power on (green)
• User controls Input signal level control
• Microphone priority control (turn clockwise or counter-clockwise for required emphasis).
• Mid-range cut and boost tone control (frequency = 1kHz; cut = -17dB; boost = +17dB)
• Loop signal (drive) control
• All user controls are adjustable using the small terminal screwdriver supplied and are
• recessed to avoid tampering.
• INDICATORS & CONTROLS
• DIMENSIONS & FINISH
• Width x Height x Depth 185 mm x 40 mm x 85 mm
• Weight 550g (amplifier only)
• Finish Satin black

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