{"product_id":"stage6-ld-systems-sp-4k-amplifier","title":"LD Systems SP 4K Amplifier – Class H, 3.9 kW Bridged Power","description":"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, \u0026lt;0.05% THD, 116 dB S\/N and \u0026gt;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.\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLD Systems SP 4K Amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE6.5.100.95\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"LD Systems","offers":[{"title":"Used Equipment","offer_id":64485290738041,"sku":null,"price":684.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/ld-systems-SP-4K-1.webp?v=1788564191","url":"https:\/\/stage-experts.com\/products\/stage6-ld-systems-sp-4k-amplifier","provider":"Stage Experts Ltd","version":"1.0","type":"link"}