Bosch LBB 1938/30 Plena Power Amplifier Price in Pakistan
The Bosch LBB 1938/30 is a high-performance 480W RMS (720W peak) power amplifier from the Plena range, engineered for demanding PA and emergency sound systems. With dual power options (AC and 24V DC backup), priority handling, and flexible 100V/70V/8Ω outputs, it’s ideal for use in mosques, schools, commercial centers, and emergency paging systems. AB Audio Visual is your trusted dealer for Bosch amplifiers.
| Category | Details |
|---|---|
| Mains Voltage | 230 VAC ±10%, 50/60 Hz |
| Inrush Current | 19 A |
| Max Power Consumption | 2200 VA |
| Battery Voltage | 24 VDC ±15% |
| Battery Max Current | 30 A |
| Output Power (RMS/Max) | 480 W / 720 W |
| Power Reduction (Backup) | -1 dB |
| Frequency Response | 50 Hz – 20 kHz (+1 / -3 dB) |
| Distortion | <1% at rated output, 1 kHz |
| Signal-to-Noise Ratio | >90 dB |
| Line Inputs | 2 × 3-pin XLR, balanced (1 V, 20 kΩ) |
| CMRR | >25 dB (50 Hz – 20 kHz) |
| Gain | 40 dB |
| 100V Input | Screw terminal, unbalanced (330 kΩ) |
| Line Loop-through Output | 2 × 3-pin XLR (1 V nominal) |
| Speaker Outputs | 100V / 70V / 8 ohm; screw terminals |
| Priority Inputs | Internally selectable (100V or 70V) |
| Music Inputs | Internally selectable (100V or 70V) |
| Power Consumption (AC) | Max: 990 W / -3 dB: 715 W / Idle: 125 W |
| Power Consumption (DC) | Max: 770 W (32 A) / Idle: 17 W (0.7 A) |
| Fan Noise Level | <48 dB SPL at 1 m (max output) |
| Operating Temperature | -10 ºC to +55 ºC |
| Storage Temperature | -40 ºC to +70 ºC |
| Relative Humidity | <95% |
| Dimensions (H × W × D) | 145 × 430 × 370 mm (3U, 19” rack) |
| Weight | Approx. 25 kg |
| Mounting | Standalone or rack-mounted |
| Color | Charcoal |