The WPI – 1000 loop amplifier is designed for church facilities, conference rooms or TV rooms with an area of up to 1,300 m². It is used to transmit an acoustic signal through a special loop made with a wire. 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 | OPI | |
|---|---|---|
| Audio inputs (XLR) | 1 x mic. XLR, 1 x mic./line, 1 x mic./line Jack | – |
| Maximum loop area | 350 m² – 1300 m² | – |
| Loop impedance | 0.5Ω – 3Ω | – |
| Loop current [RMS] | 9,2 A | – |
| Phantom Power | 15V | – |
| Sensitivity of inputs | – 50 dB mic., – 10 dB line | – |
| Frequency response | 80hz – 7kHz / 1,5dB | 18 – 20 000 Hz |
| Nonlinear distortions THD + N | < 0,2% | < 0,25% |
| Maximum power consumption | 300 VA | – |
| Power supply | 230V~, 50 Hz | 2 x 1.5V (AA) |
| Maximum output power | 120W | – |
| Dimensions width/height/depth (mm) | 443x50x205 | 62x21x100 |
| Weight (kg) | 4,2 | 0,08 |
