Bosch LBN9000-LBN9003 Horn Driver Unit for LBC340x Flares
The LBN 900x/00 driver units are the compression drivers Bosch sells for its horn flares, which ship without a driver so the installer can pick the power the zone needs. All three thread into the same standard 1 3/8 inch, 18 turns per inch exterior thread, and all are treated against corrosion for outdoor paging and voice alarm work.
Every driver carries a matching transformer with tapped power settings, so one model covers several coverage plans and matches the impedance a given amplifier expects. The 15 W LBN 9000/00 and 30 W LBN 9001/00 connect to the 100 V line with push-on spade terminals; the 50 W LBN 9003/00 uses screw terminals. All three fit the LBC3403/16 (10 inch), LBC3404/16 (14 inch), LBC3405/16 (20 inch) and LBC3406/16 (15 x 9 inch) horn flares.
| Rated power (PHC) | 15 / 10 / 7.5 / 5 W (LBN 9000/00); 30 / 20 / 15 / 10 W (LBN 9001/00); 50 / 40 / 35 / 30 W (LBN 9003/00) |
|---|---|
| Max. power | 22.5 W / 45 W / 75 W |
| Rated voltage | 100 V |
| Rated impedance | 670 ohm / 330 ohm / 200 ohm |
| Sound pressure level at rated power / 1 W (1 kHz, 1 m) | 125 / 113 dB; 129 / 114 dB; 131 / 114 dB |
| Effective frequency range (-10 dB) | 400 Hz to 9 kHz; 300 Hz to 8 kHz; 400 Hz to 5 kHz |
| Dimensions (L x Dmax) | 108 x 92 mm (4.25 x 3.62 in); 134 x 104 mm (5.28 x 4.09 in); 162 x 118 mm (6.38 x 4.65 in) |
| Weight (without horn) | 1.3 kg (2.9 lb) / 2.1 kg (4.6 lb) / 3.2 kg (7.0 lb) |
| Screw thread | Exterior thread, 1 3/8 in, 18 turns per inch |
| Operating temperature | -25 to +55 C (-13 to +131 F) |
