{"product_id":"pw8d4-echo-pro-8-inch-800-watts-power-dual-4-ohm-voice-coil","title":"PW8D4 Echo Pro 8 Inch 800 Watts Power Dual 4 Ohm Voice Coil","description":"\u003cp\u003eThe PW8D4 is an 8-inch dual 4-ohm subwoofer built for installations where compact size cannot come at the expense of output. Rated at 400W RMS with an 800W peak, it delivers controlled low-end reproduction down to 32 Hz through a combination of high-flux ferrite motor design and active thermal management. This is a purpose-built driver for builds that demand reliable, sustained performance in a smaller enclosure footprint.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-layer high-temperature copper voice coil\u003c\/strong\u003e sustains peak output over extended listening sessions without thermal rolloff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-flux ferrite motor\u003c\/strong\u003e generates the magnetic force needed for accurate, authoritative bass reproduction across the full 32–600 Hz range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolycarbonate spider suspension\u003c\/strong\u003e provides consistent linear excursion and improved responsiveness at all drive levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced airflow cooling system\u003c\/strong\u003e actively manages heat buildup, protecting the voice coil during high-demand use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIMPP cone material\u003c\/strong\u003e balances rigidity and low mass for accurate transient response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 4-ohm voice coil\u003c\/strong\u003e allows flexible wiring configurations — 2-ohm parallel or 8-ohm series — to match a range of amplifier outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eSpecifications\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Impedance:\u003c\/strong\u003e Dual 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power Handling:\u003c\/strong\u003e 400 Watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAX Power Handling:\u003c\/strong\u003e 800 Watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 32–600 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil Diameter:\u003c\/strong\u003e 2\" (50.8mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil Material:\u003c\/strong\u003e ASV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCone Material:\u003c\/strong\u003e IMPP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnet:\u003c\/strong\u003e Ferrite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnet Weight:\u003c\/strong\u003e 135 oz (50 oz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax:\u003c\/strong\u003e 8.8mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThiele\/Small Parameters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRevc: 1.6 Ω\u003c\/li\u003e\n\u003cli\u003eSensitivity: 82.6 dB\u003c\/li\u003e\n\u003cli\u003eFs: 39.7 Hz\u003c\/li\u003e\n\u003cli\u003eQts: 0.58\u003c\/li\u003e\n\u003cli\u003eQes: 0.65\u003c\/li\u003e\n\u003cli\u003eQms: 5.6\u003c\/li\u003e\n\u003cli\u003eRms: 3.3 kg\/s\u003c\/li\u003e\n\u003cli\u003eVas: 12.4 L\u003c\/li\u003e\n\u003cli\u003eη0 (Efficiency): 0.11%\u003c\/li\u003e\n\u003cli\u003eCP: 3223.9 µF\u003c\/li\u003e\n\u003cli\u003eRes: 28.2 Ω\u003c\/li\u003e\n\u003cli\u003eCms: 0.22 mm\/N\u003c\/li\u003e\n\u003cli\u003eBL: 6.7 T·m\u003c\/li\u003e\n\u003cli\u003eLe: 0.66 mH\u003c\/li\u003e\n\u003cli\u003eMms: 73.5 g\u003c\/li\u003e\n\u003cli\u003eSd: 201.1 cm²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOverall Depth: 4.96\" (126mm)\u003c\/li\u003e\n\u003cli\u003eMounting Depth: 4.13\" (105mm)\u003c\/li\u003e\n\u003cli\u003eOverall Diameter: 8.47\" (215mm)\u003c\/li\u003e\n\u003cli\u003eCutout Diameter: 7.24\" (184mm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Void","offers":[{"title":"Default Title","offer_id":54481863999806,"sku":null,"price":3000.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/9477\/1518\/files\/231_043efdf4-3587-4063-bb3f-5dc73df23106.jpg?v=1790188601","url":"https:\/\/thevoid.co.za\/products\/pw8d4-echo-pro-8-inch-800-watts-power-dual-4-ohm-voice-coil","provider":"The Void","version":"1.0","type":"link"}