LA108 - Speaker QSC - Free user manual and instructions
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| Product Type | Passive two-way line array loudspeaker |
| Woofer | 8-inch (203 mm) cone with weather-resistant coating |
| HF Driver | 1-inch (25 mm) exit compression driver with titanium diaphragm |
| Frequency Response (-6 dB) | 68 Hz - 20 kHz |
| Coverage (horizontal x vertical) | 90° x 15° (vertical array dependent) |
| Power Handling (continuous/program) | 150 W / 600 W (AES standard) |
| Impedance | 8 ohms (nominal) |
| Sensitivity (1W/1m) | 96 dB SPL |
| Maximum SPL (continuous/peak) | 118 dB / 124 dB |
| Input Connectors | Neutrik SpeakON NL4 |
| Enclosure Material | 15 mm (0.6 in) birch plywood with polyurethane coating |
| Dimensions (H x W x D) | 15.0 in (381 mm) x 8.9 in (226 mm) x 8.0 in (203 mm) |
| Net Weight | 23.5 lb (10.7 kg) |
| Rigging | Integral rigging system with SureLock captive pins |
| Color | Black (standard) or white (custom order) |
| Warranty | 6 years from date of purchase (conditions apply) |
| Maintenance | Clean with a dry, lint-free cloth. Avoid solvents. Check rigging hardware regularly. |
| Safety | Use only with approved rigging. Do not suspend from unrated structures. Read manual before installation. |
| Spare Parts & Repairability | Replaceable drivers and network cards. Contact QSC or authorized service centers. Some parts user-serviceable. |
Frequently Asked Questions - LA108 QSC
What amplifier power is recommended for the LA108?
For optimal performance, use an amplifier capable of delivering 300-600W at 8 ohms per speaker. QSC amps like the PLD or CX series are ideal.
Can the LA108 be used outdoors?
Yes, the LA108 features a weather-resistant coating and corrosion-resistant hardware, making it suitable for temporary outdoor use. For permanent outdoor installs, use the WP (Weather Protection) variant.
How do I set the angle between cabinets in a line array?
Set the splay angle using the integrated rigging system. Common angles are 0°, 4°, or 7.5° depending on coverage needed. Use the QSC ArrayCalculator software for precise aiming.
What is the maximum number of LA108 per suspension point?
With the standard rigging, up to 16 units can be safely flown per pick point, provided the structure is rated for the load (total weight approx. 376 lbs / 170 kg).
Can I use the LA108 as a floor monitor?
Yes, the LA108 can be used as a compact floor monitor due to its trapezoidal shape. Place it on a flat, stable surface and ensure no objects block the port.
What type of cable do I need?
Use a 2-conductor speakON cable (NL2 or NL4) for a single LA108. For multiple boxes, link cables with parallel wiring. Standard cable length is 10-50 ft.
How do I clean the grille?
Remove the grille by unscrewing the corner screws. Clean with a soft brush or vacuum. Wash with mild soap and water if needed. Dry completely before reattaching.
What is the recommended crossover frequency?
The LA108 is a passive two-way system. Use the built-in passive crossover. If bi-amping is desired, set the crossover at 1.8 kHz for optimal driver transition.
Is the LA108 compatible with the QSC K series subwoofers?
Yes, the LA108 pairs well with KS212C or KS118 subwoofers. Set the high-pass filter on the subwoofer to 80 Hz for seamless integration.
How do I transport and store the LA108?
Use the optional LA108-ACT transportation bag or a padded road case. Store in a dry environment at 0-40°C (32-104°F). Keep away from moisture and extreme temperatures.
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USER MANUAL LA108 QSC
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Product information
Brand : QSC
Model : LA108
Category : Speaker