Pro Audio Systems

• Technical Specifications

• Power 230-240 V a.c. mains (PDA200/2 <150 VA; PDA500/2 <225 VA; PDA1000/2 <300 VA). IEC 320 fused mains lead supplied)
• Inputs Line (3 pin XLR) - impedance: 6k8 + or – input to ground; Sensitivity: 200mV – 2.5V RMS balanced or unbalanced.
• Microphones (3 pin XLR) - impedance: 6k8 + or – input to ground; Sensitivity: 1 – 8 mV balanced
• Phantom power: 12V switchable (on/off)
• Outreach (Four-way Weidmuller connector BL5. 08/4) - impedance: >10k; Sensitivity: 500mV - 6V RMS balanced
• Outreach Power: 16 – 21 V d.c. is available via the amplifier’s Outreach Socket.
• Output type Current mode
• Loop connector Four way binding posts
• Recommended loop impedance: 0.5 – 1 Ohm @ 1KHz. Will drive higher impedance loops with reduced area of coverage.
• Loop drive current @ 1 Ohm: PDA200/2 – 6A; PDA500/2 – 9A; PDA1000/2 – 12A.
• Peak loop drive current PDA200/2 - 8 Amps @ 1 Ohm, 13Amps @ 0.5 Ohm;
• (Measured over 5mS integration time) PDA500/2 – 12 Amps @ 1 Ohm, 19 Amps @ 0.5 Ohm;
• PDA1000/2 – 14 Amps @ 1 Ohm, 24 Amps @ 0.5 Ohm
• Headphones: 3.5mm jack socket allows monitoring of the loop signal via >32 Ohm headphones.
• Maximum area coverage: For a 400mA/M field strength +/- 1dB.
• PDA200/2 @ 6A max short term current: Square room = 200m2; Rectangular room (2:1 aspect ratio) = 240m2
• PDA500/2 @ 9A max short term current: Square room = 500m2; Rectangular room (2:1 aspect ratio) = 600m2
• PDA1000/2 @ 12A max short term current: Square room = 900m2; Rectangular room (2:1 aspect ratio) = 1100m2
• Performance Frequency response: 20Hz – 14 KHz + - 3dB; Distortion: Less than 0.5 %; S to N ratio: Better than –65dB any input
• Compressor: Gives dynamically variable compression ratio from 1:1 (no compression) to 17:1
• Attack time: Approx. 10mS. Release time: Approx. 2.2S
• Metal Compensation: True 3dB /octave design counteracts frequency dependent absorption by metal in the proximity of the installation over a bandwidth of approximately 100Hz – 10KHz.
• Indicators Power on LED: Red
• Loop current: A five LED bar graph type meter is provided to allow monitoring of loop current output and assist in setting up the amplifier. This is provided by monitoring true output current rather than from a line level derived signal. This meter has PPM type characteristics i.e. fast attack and slow release. This allows easy reading of fast peaks. Accuracy - +-10%
• Compression: A two LED display is provided for indication of signal compression. The first LED shows the beginning of compression whilst the second indicates very high compression levels have been reached.
• Controls On/Off switch incorporated into IEC mains inlet.
• Four way piano key style DIP switch selects Phantom power for mic 1 & 2 XLR inputs and switches XLR input 1 between Line and Microphone settings. The fourth of the 4-in-line switch is not connected.
• Level controls for XLR 1 (Line/Mic switchable), XLR 2 (Mic) and Outreach.
• These can be used individually or any of them together, in which case they act as a three input mixer.
• Drive control: Sets the level of amplifier output current supplied by the amplifier.
• Metal compensation control. When fully anti-clockwise has no effect on the signal. When turned clockwise imparts a rising 3dB/octave characteristic to the frequency response of the amp to counteract the effect of metal in proximity to the loop.
• Cooling Requirements The PDA1000/2 and PDA500/2 have thermostatically controlled cooling fans, which are activated when the amplifier’s internal heatsink temperature reaches approx. 56oC. The PDA200/2 model does not require a cooling fan, as it does not generate as much heat as the larger models.
• Dimensions All models: Length – 380mm; Depth – 220mm; Height – 80mm
• Weight PDA200/2 – 3.74Kg, PDA500/2 – 3.46Kg; PDA1000/2 – 4.54Kg

• Features

• Ideal for theatres, cinemas, churches ,conference halls and other applications where top quality sound is a must
  
• Attractive free-standing design (optional wall and 19” rack-mounting kits available)
  
• Improved drive current capability provides up to 50% extra coverage over previous
  
• PDA Pro-Range models
  
• Pro-Range Max. square Max. 2:1 aspect, Amplifier room coverage ratio coverage
  
• PDA200/2 200m2 240m2
  
• PDA500/2 500m2 600m2
  
• PDA1000/2 900m2 1100m2
  
• Two XLR 3 pin input sockets – one balanced mic. and one switchable balanced mic./line
  
• Optional 11V phantom power available for electret or condenser microphones
  
• ‘Outreach’ input allows the connection of up to 10 additional mic. or line level inputs via a series of separately available single gang connector plates
  
• Adjustable level controls provided for all inputs - can be used individually or together as a three input mixer
  
• Adjustable drive control allows the loop current to be adjusted to suit a room’s individual characteristics
  
• Metal compensation control helps offset the frequency response problems associated with excessive metal in a building
  
• True output current meter
  
• Visible indication of the amplifier’s compressor action via two LEDs
  
• 3.5mm headphone socket allows true monitoring of the output signal
  
• Advanced audio signal processing with automatic gain control
  
• On-board cooling fan on PDA500/2 and PDA1000/2 promotes stable operating temperature and increased reliability
  
• All models designed to meet or exceed the requirements of BS7594 and EN60118-4 when correctly installed

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