| Nominal Coverage |
90° horizontal by +20 to -30° vertical |
| Frequency Range (-6 dB) |
32 Hz–16 kHz |
| Crossover Frequency |
250 and 1700 Hz, 24 dB per octave |
| |
LF-4215 |
MH-1075C |
| Impedance |
4 ohms |
8 ohms |
Sensitivity 1 watt/1 meter,
half space |
99.5 dB |
Bi-amp
105 dB |
Tri-amp
MF 105 dB |
HF 107.5 dB |
|
Maximum Input Power1
(8 hours of 6 dB crest factor IEC 268 noise spectrum)
(2 hours of 6 dB crest factor pink noise, 50 Hz–20 kHz, AES method)
Recommended Amplifier Power |
800 watts continuous
1000 watts continuous
1600 watts continuous maximum |
350 W continuous
passive
mid-high2 |
275 W continuous |
75 W continuous |
350 watts continuous
800 watts continuous maximum |
| Recommended Processing |
Subsonic filter below 30 Hz, >18 dB per octave |
4th order LR crossover at 250 & 1700 Hz via QSC processing |
| Connectors |
Barrier strip screw terminals accept up to #10 AWG stranded wire |
Barrier strip screw terminals accept up to #10 AWG stranded wire |
| Transducers |
Two 15-inch (381 mm) high efficiency, extended bass woofers featuring 4-inch copper voice coils |
10-inch high efficiency mid range, 1.5-inch (38 mm) exit, 3-inch titanium diaphragm compression driver |
| Enclosure |
Quasi B4 alignment, ported enclosure with fully flared ports, symmetrical port design, tuned to 36 Hz, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts |
Tilt/Pan Bracket
±10° vertical tilt
±10° horizontal pan |
| Dimensions (HWD) inches |
30 x 36 x 20.3 |
30 x 39 x 20 |
| Dimensions (HWD) mm |
910 x 762 x 516 |
990 x 762 x 508 |
| Net Weight |
172 lb (78 kg) |
85 lb (39 kg) |
| System Weight |
257 lb (117 kg) |
| Baffle Cut-Out |
76-inch × 32-inch |
