| Nominal Coverage |
90° horizontal by +20 to -30° vertical |
| Frequency Range (-6 dB) |
33 – 20 kHz |
| Active Crossover Frequencies |
280, 1700, and 6000 Hz, 24 dB per octave |
|
LF-4215 (2) |
MHV-1090 |
| Impedance |
4 ohms each |
MF: 8 ohms
HF: 8 ohms
VHF: 8 ohms |
| Sensitivity 1 watt/1 meter, half space |
102.5 dB |
Tri-amp
MF:105 dB
HF/VHF: 110 dB |
Quad-amp
MF: 105 dB
HF: 110 dB
VHF: 110 dB |
|
| Maximum Input Power 1 |
|
|
8 hours of 6 dB crest factor
IEC 268 noise spectrum |
800 watts continuous each |
|
2 hours of 6 dB crest factor pink
noise, 50 Hz–20 kHz, AES method |
1000 watts continuous each |
MF: 275 W continuous
HF/VHF: 200 W continuous |
MF: 275 W continuous
HF: 100 W continuous
VHF: 100 W continuous |
|
| Recommended Amplifier Power |
1600 watts continuous maximum each |
MF: 800 W continuous
HF: 500 W continuous
VHF: 300 W continuous maximum |
|
|
|
| Recommended Processing |
Subsonic filter below 30 Hz, >18 dB per octave |
4th order LR crossover at 280, 1700 and
6000 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 |
Four 15-inch (381 mm) high efficiency, extended bass woofer featuring a 4-inch copper voice coils |
MF: 10-inch high-effeciency, horn-loaded cone with pahse plug
HF/VHF: coaxial neodymium compression driver with 3.5-inch (90 mm) HF diaphram and 1.75-inch (44 mm) VHF diaphram |
| 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 |
72 × 30 × 20.3 |
39 × 30 × 20 |
| Dimensions (HWD) mm |
762 x 1820 x 516 |
762 x 990 x 508 |
| Net Weight |
344 lb (156 kg) |
84 lb (38.5 kg) |
| System Weight |
428 lb (193.5 kg) |
| Baffle Cut-Out |
111.6-inch × 32-inch |
