A sharper eye for a safer world.

Mixer Amplifier

Plena Loop Amplifier PLN‑1LA10

  • High power, current driven amplifier
  • Two microphone/line inputs, one priority input (100 V)
  • Selectable frequency range and tone controls
  • Limiter and automatic gain control (AGC)
  • Integrates in an EN 54‑16 and EN 60849 compliant system

Technical Specifications:

Electrical 
Mains power supply 
Voltage230/115 VAC, ±10%, 50/60 Hz
Inrush current7 A at 230 VAC / 14A at 115 VAC
Max power consumption500 VA
Performance 
Output current10A
Frequency response50 Hz to 10 kHz (+1/-3 dB at -10 dB
 ref. rated output)
Distortion<1% at rated output power, 1 kHz
Bass control-8/+8 dB at 100 Hz
Treble control-8/+8 dB at 10 kHz
Mic/line input2 x
Connector3-pin XLR, balanced mic/line level (switchable)
Sensitivity1 mV / 1 V (mic/line)
Impedance>1 kohm
Dynamic Range100 dB
S/N (flat at max volume)75 dB
Headroom25 dB
Phantom power supply16 V (switchable)
VOX functionalityInput 1 (switchable) mutes input 2
VOX sensitivity-10 dB ref nominal input
Priority input 
ConnectorScrew
Sensitivity100 V, transformer balanced
Impedance>100 kohm
S/N (flat at max volume)63 dB
Headroom25 dB
Pilot tone detection-20 dB, ref 100 V (10 V)
Pilot tone threshold-26 dB, ref 100 V (5 V)
Master input*1 x
Connector1/4" TS jack
Line output 
Connector3-pin XLR, balanced
Nominal level1 V
Impedance200 ohm
Loop output 
ConnectorScrew
Slave output(for master input of other PLN-1LA10)
Connector1/4"TS jack 0° to 90°
Fault Relay 
ConnectorScrew
Contacts100 V, 2 A (voltage free, SPDT)
Mechanical 
Dimensions (H x W x D) 94 x 430 x 320 mm, (19" wide, 2U high)
Weight Approx. 11.6 kg
Mounting Stand-alone, 19" rack
Color Charcoal
Environmental 
Operating temperature -10 ºC to +55 ºC (14 ºF to +131 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%
Acoustic noise level of fan <35 dB SPL at 1m, temperature controlled