เครื่องขยายเสียง ยี่ห้อ BOSCH รุ่น PRS-2B250
- High efficiency class-D amplifier channel(s)
- Switched mode power supply
- Local audio inputs
- Mains and battery operation
- Complete supervision
Key Specifications
| Voltage | 115/230 VAC ±10%, 50/60 Hz |
| Power consumption | Pmax -3 dB* / idle** / standby, 378 / 46 / 18 W |
| Voltage | 48 VDC -10% to +20% |
| Power consumption | Pmax -3 dB* / idle** / standby, 370 / 38 / 6 W |
| Frequency response | 60 Hz to 19 kHz (-3 dB) |
| Total harmonic distortion | <0.3% (1kHz) at 50% of rated power |
| Cross talk | -70 dB (1 kHz) nominal (only multichannel) |
| Signal‑to‑noise ratio | >85 dB with pilot tone off |
| Local audio input | 0 dBV (symmetrical) |
| Rated load resistance | 40 ohm (100 V); 20 ohm (70 V) |
| Rated load capacitance | 125 nF (100 V); 250 nF (70 V) |
| Rated output power | 250 W (1 min. at 55 °C) |
| rack use, with brackets | 88 x 483 x 400 mm(3.5 x 19 x 15.7 in) |
| in front of brackets | 40 mm (1.6 in) |
| behind brackets | 360 mm (14.2 in) |
| Mounting | 19” rack |
| Color | Charcoal with silver |
| Weight | 14 kg (30.9 lb) |
| Operating temperature | -5 ºC to +55 ºC (+23 ºF to +131 ºF) |
| Storage and transport temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
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