MACKIE SRM 1850
| PA Speaker | |
| Configuration | Active Subwoofer |
| Enclosure Type | Bass-Reflex Subwoofer |
| Total Power Capacity | 800 W RMS 1600 W Peak |
| Amplifier Class | Class-D |
| Drivers | |
| LF Driver | 1 x 18" / 457 mm Paper Woofer |
| LF Voice Coil | 3" / 76 mm |
| Magnet | Ferrite |
| Performance | |
| Frequency Response | 40 Hz to 120 Hz -3 dB 35 Hz to 150 Hz -10 dB |
| Maximum SPL | 132 dB |
| I/O Impedance | Input: 20 Kilohms (Balanced) 10 Kilohms (Unbalanced) |
| THD | <1% |
| Protections | RMS, Thermal |
| Connectivity | |
| Audio I/O | 2 x XLR 3-Pin Female Balanced Input 2 x XLR 3-Pin Male Balanced Line Output 2 x XLR 3-Pin Male Balanced High-Pass Output |
| Signal Processing | |
| Crossover | 60 to 120 Hz |
| Dynamic Processing | Peak Limiter |
| Alignment Delay | Yes |
| Power | |
| AC Input Power | 100 to 120 VAC, 60 Hz |
| AC Power I/O | 1 x IEC |
| Power Consumption | 200 W |
| Physical | |
| Handles | 2 x Side |
| Cooling | Convection |
| Construction Material | Metal Grille, Plywood |
| Operating Temperature | 32 to 104°F / 0 to 40°C |
| Dimensions | 22.5 x 22.2 x 23.9" / 572 x 565 x 608 mm |
| Weight | 64 lb / 29 kg |