The LA-4241B is a compact linear array speaker with four 4” full-range drivers, engineered for both speech and music reinforcement. Complementing it, the LA-180SUB is an active subwoofer that integrates advanced digital signal processing, a robust 18” woofer, and a high-power amplifier module to ensure powerful output and consistent audio performance.
For greater portability, the full-range speakers can be detached and conveniently stored within the subwoofer’s bass reflex port, streamlining transport and setup.
When combined, two LA-4241B speakers and one LA-180SUB subwoofer produce crisp, dynamic sound with rich bass, delivering a high sound pressure level that outperforms comparable systems. With exceptional outdoor projection and effortless installation, this system is an excellent choice for diverse venues, including churches, museums, live events, transportation hubs, sports arenas, government buildings, conference spaces, lecture halls, shopping centers, and AV demonstration rooms.

Model | LA-4241B |
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 | 16Ω |
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-180SUB | |
Speaker Unit | 1 × 18" Woofer, 220mm Magnet / 100mm Voice Coil | |
Rated Power | 1000W (Continuous), 4000W (Peak) | |
Frequency Response | 28Hz - 300Hz | |
Sensitivity(1W/1m) | 92dB | |
SPL | 131dB (Continuous), 136dB (Peak) | |
Nominal Impedance | 8Ω | |
Crossover Frequency | 120Hz | |
Connectors | One Neutrik NL4 Socket | |
Product Dimension(W×H×D) | 502 ×608 × 650mm | |
Product Weight | 35kg | |
Amplifier Module | Power Configuration | 1600W + 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 | ~90V - 270V, 50/60Hz (PFC Power Supply) | |
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 | |
LA-4240+LA-15SUB Multipurpose Portable Column Array Speaker SystemDecember 7, 2023The LA-4240 is a compact linear sound speaker with 4.5” full range speaker unit, designed for voice and music applications, while the LA-15SUB is an active subwoofer with digital signal processing, w...view
LA1420F 650W Passive Waterproof Array Full Range Speaker (1 PCS)December 22, 2023This product represents a top-tier, high-quality medium and high-frequency passive waterproof line array speaker. Renowned for its exceptional radiation characteristics, it delivers clear, delicate so...view
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...viewwe will contact you within 24 hours.
Welcome to Join Us at PALM 2016 in BeijingNovember 25, 2016From 1stto 4thSeptember, the 25thPALM Expo would take place in Beijing, China at China International Exhibition Centre. Welcome to visit our booth at 1B201.view
Do You Really Know the Advantages of IP Public Address System?February 5, 2021Ⅰ. Introduction to IP public address systemIP network broadcasting system equipment is a digital audio broadcasting system based on TCP/IP protocol, which is suitable for all kinds of places with net...view