JBL Professional JBL M2 Master Reference Monitor
The M2 is JBL's master reference monitor: a two-way floor-standing system built around a 2216Nd 15-inch Differential Drive woofer and a D2430K dual-diaphragm, dual-voice-coil compression driver, crossed at 800 Hz. In-room response is 20 Hz to 40 kHz within 3 dB, with 117 dB continuous and 123 dB peak at one metre - and still 108 dB peak at eight metres, which is the number that matters in a large control room.
This is not a powered monitor. Each M2 requires a Crown iTech 5000HD amplifier, or one iTech 3x3500HD will drive a pair, running the JBL-authored tunings. The cabinet is 25 mm MDF in satin black lacquer and can stand free or be soffit-mounted; a removable ABS grille is included. Each cabinet weighs 129 lb.
| System format | Two-way, floor-standing or soffit-mountable |
|---|---|
| LF driver | 2216Nd 15-inch (381 mm) Differential Drive woofer |
| HF driver | D2430K dual-diaphragm, dual-voice-coil compression driver |
| Crossover frequency | 800 Hz |
| Frequency response (+/-3 dB) | 20 Hz - 40 kHz |
| Coverage angle | 120 degrees H x 100 degrees V |
| Sensitivity | 92 dB |
| Continuous / peak SPL at 1 m | 117 dB / 123 dB; 108 dB peak at 8 m |
| Amplification required | One Crown iTech 5000HD per speaker, or one iTech 3x3500HD for a pair |
| Input connectors | Spring terminals |
| Enclosure | 25 mm MDF, satin black lacquer; removable ABS grille included |
| Dimensions (W x H x D) | 508 x 1256 x 355.6 mm (20 x 49.5 x 14 in) |
| Net weight (each) | 58.5 kg (129 lb) |








