LD Systems ICOA Pro Sub 21 A | 21in - 136db

High-Output 21" Powered Subwoofer with DSP, Bluetooth & App Control The LD Systems ICOA PRO SUB 21 A is a next-generation 21-inch active subwoofer built for the most demanding live sound, club, DJ, and install environments. Delivering up to 3000W peak of deep, precise bass output down to 29 Hz, this compact yet powerful sub features an advanced DSP, mobile app control, and innovative cabinet design optimized for transport and durability. LD Systems ICOA PRO SUB 21 A Competitive Differences

• 21" Neodymium woofer with 4.5" voice coil for ultra-tight, punchy, and extended low-end
• Massive 3000W peak / 1500W RMS Class D amplifier with up to 136 dB SPL
• SysCore® DSP with FIR/IIR filters, 4-band PEQ, limiter, delay (up to 50m), and presets
• Bluetooth® 5.1 audio streaming and TrueWirelessâ?¢ Stereo (TWS) support
• Six crossover presets including cardioid and low-latency modes
• Dual M20 pole mounts for horizontal or vertical stacking and top-mounting
• Front-facing status LED indicates limiter, power, or ID mode
• Ultra-rugged 18mm birch plywood cabinet with polyurea coating and shock-resistant grille
• 8 ergonomic handles and stacking grooves for safe transport and fast setup
• Fits standard transport vans with compact footprintâ??ideal for mobile applications

LD Systems ICOA PRO SUB 21 A Description The ICOA PRO SUB 21 A from LD Systems redefines whatâ??s possible in a compact, transport-friendly 21â?� subwoofer. Whether you're a touring DJ, live engineer, or install tech, this powerhouse sub provides everything you need for impactful, clean, distortion-free bass in even the most demanding environments. At its core is a custom-designed 21" neodymium driver with a 4.5â?� voice coil, delivering precision bass that reaches as low as 29 Hz. Thanks to a convection-cooled 3000W Class D amp and optimized reflex porting, the sub remains cool while pumping out up to 136 dB SPL without distortion. The integrated SysCore® DSP lets you tailor the subâ??s performance to your setup via onboard color screen or the free app for iOS/Android. With 6 DSP presets (including cardioid and low-latency), 4-band parametric EQ, selectable crossover points, and adjustable delay up to 50m, it provides precise control in any situation. Connectivity includes dual XLR inputs and thru outputs, a powerCON loop-through connector, and integrated stacking grooves. Designed for real-world use, the rugged birch plywood enclosure is finished with a durable polyurea coating and equipped with 8 heavy-duty handles for easy lifting. Two M20 threaded mounts enable secure pole-mounting in both vertical and horizontal orientations. Ideal for use with other ICOA PRO series loudspeakers, the ICOA PRO SUB 21 A offers world-class low-end in a tour-ready format. ICOA PRO SUB 21 A Features

• High-performance 21" subwoofer with neodymium motor and 4.