The LA-4240B is a compact line array speaker designed for both speech and music, featuring four 4” full-range drivers. Complementing it, the LA-150SUB is an active subwoofer with a high-power 15” woofer and advanced digital signal processing, delivering outstanding audio performance with remarkable output stability.
For enhanced portability, the full-range speakers can be detached and conveniently stored within the bass reflex port of the subwoofer, optimizing space efficiency.
When used together, a setup of two LA-4240B speakers and one LA-150SUB subwoofer produces crisp, dynamic sound with deep bass, achieving a high sound pressure level that exceeds comparable systems. Its superior outdoor projection and easy installation make it well-suited for a variety of locations, such as churches, museums, live performance venues, transportation hubs, sports arenas, government buildings, conference spaces, lecture theaters, shopping centers, and AV demonstration rooms.
Model | LA-4240B |
Speaker Unit | 4 × 4" Full-range Drivers |
Rated Power | 280W @ 8Ω / 800W (peak) |
Frequency Range | 100Hz-20kHz |
Sensitivity(1W/1m) | 98dB |
SPL | 120dB (Continuous), 130dB (Peak) |
Nominal Impedance | 8Ω |
Nominal Coverage Angle (H × V) | 120° × 80° |
Crossover Frequency | 120Hz |
Connectors | Two Neutrik NL4 Sockets (1-/1+) |
Enclosure Material | Aluminum Alloy |
Product Dimension(W×H×D) | 125 × 500 × 138mm |
Product Weight | 7.2kg |
Model | LA-150SUB | |
Speaker Unit | 1 × 15" Woofer, 220mm magnet / 100mm voice coil | |
Rated Power | 700W (Continuous), 1600W (Peak) | |
Frequency Response | 32Hz - 300Hz | |
Sensitivity(1W/1m) | 97.5dB | |
SPL | 130dB (Continuous), 136dB (Peak) | |
Nominal Impedance | 8Ω | |
Crossover Frequency | 120Hz | |
Connectors | One Neutrik NL4 Socket | |
Product Dimension(W×H×D) | 500 × 486 × 550mm | |
Product Weight | 35kg | |
Amplifier Module | Power Configuration | 1200W + 800W @ 8Ω |
Frequency Response | 20Hz - 20kHz (-0.5dB at 1/8 Output Power) | |
SNR | ≥101dB (A-Weighted) | |
Damping Factor | 500 | |
Input Sensitivity/Impedance | 1.2V / 22kΩ | |
THD | ≤0.05% | |
Input Voltage | ~190V-240V 50/60Hz | |
Output Circuit Type | Class D | |
Protection Features | Overload Protection, Overvoltage Protection, Undervoltage Protection, Overheat Protection, Short Circuit Protection, DC Protection, etc. | |
DSP Decoder Chip | 96kHz Sampling Rate | |
LA1423SA 900W Active Line Array SubwooferDecember 22, 2023The LA1423SA is an active subwoofer that equipped with an 18-inch bass driver and a Class-D amplifier for powerful, clear sound. Its wide frequency response and high peak power make it perfect for mob...view
D7733 Dual 10'' 3-Way All-Weather Line Array LoudspeakerSeptember 16, 2025The D7733 is a dual 10-inch 3-way all-weather line array loudspeaker engineered for clear, detailed sound with strong projection. Its IP66-rated enclosure and versatile three-point suspension make it ...view
LA1421A Active Line Array SpeakerNovember 9, 2023This active line array speaker is designed with high power and high SPL capability. The speaker box body is constructed using special plywood for sea vessels, ensuring high reliability. All metal acce...viewwe will contact you within 24 hours.
DSPPA Network PA System Applied in Hangzhou G20November 29, 2016September 4, 2016, G20 summit opened in Hangzhou. Distinguished guests from different countries, international organizations, leaders all gathered in Hangzhou to discuss international events. It is a ...view
DSPPA | Welcome to DSPPA AAA Tourist AttractionJanuary 12, 2023Abstract: Good News! From 8th January, disease control measures targeting inbound travelers have been lifted.view
EN
ar
bn
fr
ms
de
th
id
hi
pt
ru
es
