| LF-4115 | MH-1075C |
| Impedance | 4 ohms | 8 ohms |
| Sensitivity 1 watt/1 meter, half space | 96.5 dB | Bi-amp 105 dB Tri-amp MF 105 dB HF 107.5 dB |
| Bi-amp 105 dB | Tri-amp MF 105 dB | HF 107.5 dB |
| Maximum Input Power 1 (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 | 400 watts continuous 500 watts continuous 800 watts continuous maximum | 250 W continuous passive mid-high 2 275 W continuous 80 W continuous 350 watts continuous 800 watts continuous maximum |
| 250 W continuous passive mid-high 2 | 275 W continuous | 80 W continuous |
| Recommended Processing | Subsonic filter below 30 Hz, >18 dB per octave | 4th order LR crossover at 280 & 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 | One 15-inch (381 mm) high efficiency, extended bass woofer 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 × 18.5 × 20.3 | 30 × 39 × 20 |
| Dimensions (HWD) mm | 470 x 762 x 516 | 990 x 762 x 508 |
| Net Weight | 83 lb (38 kg) | 85 lb (39 kg) |
| System Weight | 168 lb (77 kg) |
| Baffle Cutout | 58.75-inch × 32-inch |
1 Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor. 2 Maximum input power tested in accordance with IEC 268-5 recommendations, 200 Hz - 2 kHz band limiting, 6 dB signal crest factor.
Specifications are subject to change without notice.