The LD Systems SP 4K is a rugged, high-output Class H power amplifier designed for dependable performance in live sound, rental and fixed installation. Delivering up to 2 x 1,950 W at 2 Ω, 2 x 1,380 W at 4 Ω and 2 x 810 W at 8 Ω, it also provides 3,900 W bridged at 4 Ω for demanding applications such as driving subwoofers. A switching power supply keeps weight down while ensuring stable power delivery. Intelligent Clip Limiting (ICL) and a comprehensive protection suite—PMS power management, DC, short-circuit, thermal and PSU overload—safeguard both the amplifier and connected loudspeakers. Practical features include selectable 26/32/38 dB gain, stereo/bridge modes, dual/link inputs, and clear front‑panel indicators for signal, temperature, PMS and ICL. Balanced XLR inputs and dual Speakon outputs make integration straightforward. With a 20 Hz–20 kHz response, <0.05% THD, 116 dB S/N and >500 damping factor, the SP 4K combines clean, controlled sound with real-world reliability. Ideal for touring racks, club installs and event PA systems where robust power and protection are essential.
Includes
- LD Systems SP 4K Amplifier
STAGE6.5.100.95