{"product_id":"helix-iq-w12-dvc2-high-performance-subwoofer-300mm","title":"Helix IQ W12-DVC2 High-Performance Subwoofer 300mm","description":"A 300mm high-performance subwoofer built for audiophiles craving powerful, precise bass. Its innovative Tuneable Mass System lets you fine-tune the moving mass, adjusting the resonant frequency and overall character of the sound. A triple-layer glass-fibre, Mylar and honeycomb diaphragm combines extreme rigidity with excellent internal damping for controlled, dynamic output. The dual 2-ohm voice coil offers flexible wiring configurations, suiting a wide range of amplifiers. A robust aluminium die-cast basket with integrated protective grille ensures lasting, resonance-free performance.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eType\u003c\/strong\u003e: Single chassis subwoofer\u003cbr\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e: 300 mm\u003cbr\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e: 2 x 2 Ohm\u003cbr\u003e\u003cstrong\u003eRMS Power Handling\u003c\/strong\u003e: 750 Watt\u003cbr\u003e\u003cstrong\u003eMax Power Handling\u003c\/strong\u003e: 1500 Watt\u003cbr\u003e\u003cstrong\u003eRecommended Amplifier Power (RMS)\u003c\/strong\u003e: From 300 Watt\u003cbr\u003e\u003cstrong\u003eVoice Coil Diameter\u003c\/strong\u003e: 63 mm\u003cbr\u003e\u003cstrong\u003eVoice Coil Winding Width\u003c\/strong\u003e: 34 mm\u003cbr\u003e\u003cstrong\u003eMax Linear Cone Excursion (Xmax)\u003c\/strong\u003e: +\/- 12 mm\u003cbr\u003e\u003cstrong\u003eCone Material\u003c\/strong\u003e: Glass-fibre Mylar honeycomb\u003cbr\u003e\u003cstrong\u003eBasket Material\u003c\/strong\u003e: Aluminium die-cast\u003cbr\u003e\u003cstrong\u003eDC Resistance (Re)\u003c\/strong\u003e: 2 x 1.9 Ohm\u003cbr\u003e\u003cstrong\u003eResonant Frequency (Fs)\u003c\/strong\u003e: 36 Hz (no TM), 32 Hz (+1 TM), 29 Hz (+2 TM), 27 Hz (+3 TM)\u003cbr\u003e\u003cstrong\u003eMechanical Q Factor (Qms)\u003c\/strong\u003e: 5.37\u003cbr\u003e\u003cstrong\u003eElectrical Q Factor (Qes)\u003c\/strong\u003e: 0.53 (no TM), 0.59 (+1 TM), 0.64 (+2 TM), 0.69 (+3 TM)\u003cbr\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e: 0.48 (no TM), 0.53 (+1 TM), 0.57 (+2 TM), 0.62 (+3 TM)\u003cbr\u003e\u003cstrong\u003eCompliance (Cms)\u003c\/strong\u003e: 96 μm\/N\u003cbr\u003e\u003cstrong\u003eEquivalent Volume (Vas)\u003c\/strong\u003e: 35 L\u003cbr\u003e\u003cstrong\u003eForce Factor (B*I)\u003c\/strong\u003e: 18.1 Tm\u003cbr\u003e\u003cstrong\u003eSensitivity (SPL)\u003c\/strong\u003e: 90 dB @ 2.83 V \/ 1 m, 87 dB @ 1 W \/ 1 m\u003cbr\u003e\u003cstrong\u003eCone Area (Sd)\u003c\/strong\u003e: 515 cm²\u003cbr\u003e\u003cstrong\u003eMoving Mass (Mms)\u003c\/strong\u003e: 199 g (no TM), 252 g (+1 TM), 305 g (+2 TM), 358 g (+3 TM)\u003cbr\u003e\u003cstrong\u003eMechanical Resistance (Rms)\u003c\/strong\u003e: 8.5 kg\/s\u003cbr\u003e\u003cstrong\u003eExternal Diameter\u003c\/strong\u003e: 327.1 mm\u003cbr\u003e\u003cstrong\u003eMounting Diameter\u003c\/strong\u003e: 281 mm\u003cbr\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e: 144.7 mm\u003cbr\u003e\u003cstrong\u003eRecommended Sealed Enclosure Volume\u003c\/strong\u003e: 33 L (no TM), 47 L (+1 TM), 65 L (+2 TM), 115 L (+3 TM)\u003cbr\u003e\u003cstrong\u003eRecommended Ported Enclosure Volume\u003c\/strong\u003e: 70 L (no TM), 90 L (+1 TM), 110 L (+2 TM), 140 L (+3 TM)\u003cbr\u003e","brand":"HELIX","offers":[{"title":"Default Title","offer_id":53773395525969,"sku":"Q431203","price":434.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1041\/2772\/5905\/files\/HELIX_IMPACT_IQ-W12-DVC2_Pers_29-01-2025_c7cb5e28-d9ff-43db-aaa4-29c0b40ba712.jpg?v=1778715095","url":"https:\/\/shoponyxac.co.uk\/products\/helix-iq-w12-dvc2-high-performance-subwoofer-300mm","provider":"Onyx Auto Care","version":"1.0","type":"link"}