{"product_id":"stage22-hk-audio-linear-5-sub-4000a","title":"HK Audio Linear SUB 4000A Active Subwoofer | Stage Experts","description":"The HK Audio Linear SUB 4000A is a high-performance active subwoofer designed to extend low-frequency reinforcement in professional live sound and installation setups. Part of the renowned Linear series, it delivers tight, controlled bass with impressive headroom, making it an ideal partner for HK Audio tops and other full‑range cabinets. A built‑in amplifier removes the need for external power amps, while integrated filtering and crossover options ensure quick, reliable system integration. Balanced inputs and link outputs make routing straightforward for both standalone and multi‑sub arrays. The robust wooden cabinet, durable finish and ergonomic handles are built for touring, with an M20 pole mount enabling clean, compact top‑and‑sub stacks where space is at a premium. Whether you’re reinforcing bands, DJs, corporate events or installs, the Linear SUB 4000A offers dependable punch, clarity and consistency night after night. Pair it with compatible tops for a powerful, scalable system that’s easy to deploy on stage or on the road.\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\u003eHK Audio Linear 5 SUB 4000A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eSTAGE22.1.100.800\u003c\/strong\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"HK Audio","offers":[{"title":"Used Equipment","offer_id":63769059819897,"sku":null,"price":2069.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0288\/2260\/1776\/files\/PHOTO-2026-05-06-18-09-08_046d59d2-150f-4f9d-9e80-1d7241d38c9d.jpg?v=1781539724","url":"https:\/\/stage-experts.com\/products\/stage22-hk-audio-linear-5-sub-4000a","provider":"Stage Experts Ltd","version":"1.0","type":"link"}