{"product_id":"nexus-18-400b-18-inch-400w-rms-replacement-loudspeaker","title":"Nexus 18-400B 18-Inch 400W RMS Replacement Loudspeaker","description":"\u003cul\u003e\n\u003cli\u003eThe 18-400B 18-Inch Replacement Loudspeaker is a high-power, commercial-grade low-frequency transducer engineered to deliver deep, rumbling sub-bass reinforcement and heavy acoustic punch to professional PA subwoofers, bass bins, and large-format sound reinforcement cabinets.\u003c\/li\u003e\n\u003cli\u003eRated at an authoritative 400 watts RMS, this heavy-duty 18-inch driver serves as an essential drop-in replacement utility for live sound engineers, mobile DJs, touring bands, and rental audio production benches.\u003c\/li\u003e\n\u003cli\u003eIt replaces burned-out, torn, or fatigued sub-bass drivers instantly, saving production teams from the high expense of replacing full cabinet enclosures.\u003c\/li\u003e\n\u003cli\u003eOperating as a highly efficient low-frequency driver, the loudspeaker features a robust pressed steel chassis paired with a high-temperature 3-inch voice coil wound on a resilient former.\u003c\/li\u003e\n\u003cli\u003eThis structural framework ensures the speaker handles intense thermal loads and prolonged high-volume stress without suffering from power compression or voice coil warping.\u003c\/li\u003e\n\u003cli\u003eIts specialized treated paper cone and multi-roll cloth surround are optimized to move massive columns of air, delivering tight, punchy low-end transients and extended sub-bass frequencies that add raw physical impact to live music and dance venue audio layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-Efficiency 400W RMS Continuous Power Handling: Built to manage 400 watts of continuous RMS power safely.\u003c\/li\u003e\n\u003cli\u003eThis high power rating provides the thermal headroom necessary for demanding live venue reinforcement and multi-hour DJ events.\u003c\/li\u003e\n\u003cli\u003ePremium Pressed Steel Chassis Construction: Formed from a high-gauge structural steel frame that resists warping and mechanical distortion.\u003c\/li\u003e\n\u003cli\u003eThis rigid basket geometry maintains perfect internal component alignment under heavy acoustic loads.\u003c\/li\u003e\n\u003cli\u003eLarge 3-Inch High-Temperature Voice Coil: Wound with precision wire around an advanced thermal former.\u003c\/li\u003e\n\u003cli\u003eThis oversized design dissipates heat rapidly, protecting the component from thermal failure during long, high-volume operations.\u003c\/li\u003e\n\u003cli\u003eOptimized Sub-Bass Paper Cone and Cloth Surround: Features a lightweight, stiff paper cone coupled with a durable multi-roll treated cloth surround.\u003c\/li\u003e\n\u003cli\u003eThis specialized combination delivers rapid transient response and deep sub-bass reproduction while eliminating cone flexing.\u003c\/li\u003e\n\u003cli\u003eUniversal Drop-In 18-Inch Form Factor: Standardized mounting bolt holes provide effortless compatibility with a wide array of pro audio brands.\u003c\/li\u003e\n\u003cli\u003eIt drops perfectly into standard bass-reflex cabinets, folded horn enclosures, and passive bass bins.\u003c\/li\u003e\n\u003cli\u003eCost-Efficient Sound System Maintenance: Designed as a heavy-duty single replacement component.\u003c\/li\u003e\n\u003cli\u003eThis standalone driver availability allows rental companies and school AV groups to repair single damaged subwoofers affordably and keep their inventory running.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eComponent Type: Professional Low-Frequency Sub-Bass Replacement Transducer\u003c\/li\u003e\n\u003cli\u003eModel Designation: 18-400B High-Output Series\u003c\/li\u003e\n\u003cli\u003eNominal Basket Diameter: 18 inches (457 mm)\u003c\/li\u003e\n\u003cli\u003eContinuous Power Handling: 400 Watts RMS\u003c\/li\u003e\n\u003cli\u003eNominal System Impedance: 8 Ohms Standard Operational Load\u003c\/li\u003e\n\u003cli\u003eVoice Coil Diameter Structure: 3-inch High-Temperature Voice Coil Assembly\u003c\/li\u003e\n\u003cli\u003eMagnet Structure Weight Profile: Heavy-Duty High-Flux Ferrite Magnet Array\u003c\/li\u003e\n\u003cli\u003eCone Material Base Configuration: Stiffened Acoustic Fiber Paper Cone with Treated Cloth Edge Surround\u003c\/li\u003e\n\u003cli\u003eChassis Frame Architecture: Rigid Heavy-Gauge Pressed Steel Basket\u003c\/li\u003e\n\u003cli\u003ePrimary Application: Replacement low-frequency driver for active and passive subwoofer cabinets, portable DJ bass bins, compact club sub-bass enclosures, and custom venue sound installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat’s in the Box\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 18-400B 18-Inch 400W RMS Replacement Loudspeaker Driver\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nexus","offers":[{"title":"Default Title","offer_id":42838694461511,"sku":"31601840","price":2099.9,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/6598\/6375\/files\/nexus-18-400b-18-inch-400w-rms-replacement-loudspeaker-5657802.png?v=1780422313","url":"https:\/\/philtron.co.za\/products\/nexus-18-400b-18-inch-400w-rms-replacement-loudspeaker","provider":"Philtron","version":"1.0","type":"link"}