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WPI-450

The WPI – 450 loop amplifier is designed for church facilities or conference rooms with an area of up to 800 m². It transmits an acoustic signal through a special loop made of a wire (wire) with a cross-section of 1 – 2.5 mm². The signal is received from the loop via a wireless OPI receiver connected to headphones or to hearing aids of the hard of hearing. Any number of OPI wireless receivers can be used in one system.

Technical data WPI – 450 OPI
Audio inputs (XLR) 2 x mic., 1 x mic./line
Maximum loop area 450 m² – 800 m²
Loop impedance 0.5Ω – 3Ω
Loop current [RMS] 4 A
Phantom Power 12V
Sensitivity of inputs – 50 dB mic., – 10 dB line
Frequency response 40 – 20 000 Hz 18 – 20 000 Hz
Nonlinear distortions THD + N < 0,25% < 0,25%
Maximum power consumption 300 VA
Power supply 230V~, 50 Hz 2 x 1.5V (AA)
Dimensions width/height/depth (mm) 443x50x205 62x21x100
Weight (kg) 4,1 0,08
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