User manual DAIHATSU 4WD F310

[. . . ] The coil body is treated with a heat conductive black epoxy resin, to evenly spread the thermal load over the full voice coil and former height. 3½" CoMPouND BaSV VoICe CoIL forMer The voice coil former is made of laminated black anodized aluminum, with additional mechanical reinforcement of the neck area above the coil windings. Black anodized aluminum conducts heat very well, pulling the heat away from the coil. faraDay CoPPer rING oN CeNter PoLe The copper ring added to the center pole acts as Faraday inductance break, stabilizing the magnetic field and effectively counteracting the rising voice-coil impedance rising to higher frequencies, while also lowering total harmonic distortion. PerIMeter VeNteD BaSKet DeSIGN CaSt aLuMINuM BaSKet EMPASER's proprietary cast aluminum basket line is overbuilt to offer a truly solid and anti-resonant platform for the ultra-heavy 315 oz. [. . . ] A deep draw basket design enables huge cone travel to both sides, due to increased distance between lower spider platform and basket bottom. The vented cavity under the double-spider suspension features large windows to sustain best air exchange around the voice coil. The fully open basket structure also counteracts compression effects of air trapped under the lower spider. The increased air flow significantly improves electrical / thermal power handling and reduces thermal stress on parts held together by adhesives. Less airflow noise during full power operation is another side benefit of the perimeter vented basket design. trIPLe StaCKeD CeraMIC Sr-fe MaGNet teCHNICaL SPeCIfICatIoNS e124WD F310 Usable Frequency Response* Continuous Power Handling* Peak Power Handling* Nominal Impedance Voice Coil Diameter Voice Coil Winding Height Front Pole Plate Height Total Weight of Sr-Fe Magnet 20 ­ 100 Hz 2500 W RMS* 5 kW* 2 x 2 Ohms 54 mm 19 mm e154WD F310 20 ­ 100 Hz 2500 W RMS* 5 kW* 2 x 2 Ohms 54 mm 19 mm Triple stacked Strontium-Ferrite magnets with a total weight of 315 oz. The magnet system uses the highest corcitive force ceramic magnet material available today, standing out with its strong BL product. NoMeXTM CoMPoSIte CoNe WItH StItCHeD SurrouND 3 ½"/88. 6 mm 3 ½"/88. 6 mm The 4WD F310 woofers deploy NomexTM composite cones of extra thickness, offering highest stiffness and low weight, for extremely low cone flex at high SPL levels. To improve field reliability, the surround is stitched to the cone, preventing unnecessary strain on the joint that holds the surround to the cone. 315 oz. /8930 g 315 oz. /8930 g *Exact performance data depending upon actual enclosure! HIGH eXCurSIoN PoLyetHer SurrouND tHIeLe ­ SMaLL ParaMeterS Free-Air Resonance DC Resistance Electrical Damping Mechanical Damping Total Damping Equivalent Vol. Air Load Electrically Limited Cone Excursion Effective Cone Surface Volume Displacement of Cone Voice Coil Inductance @ 1kHz Efficiency (2. 00V) (Fs) (Re) (Qes) (Qms) (Qts) (Vas) (Mms) (Xmax) (Sd) (Vd) (Le) (RefSPL) 35. 8 Hz 2x1. 85 Ohms 0. 63 5. 63 0. 57 23. 8 l 304. 5 g 23. 4 Hz 2x1. 85 Ohms 0. 60 4. 31 0. 53 97. 5 l 487 g Polyether foam is used as surround material, to allow proper centering of the cone thoughout the large excursion capabilities of the 4WD F310 woofers. The broken-in driver will play audibly smoother and exhibit a stronger bass performance, as well as greater bass extension! eNCLoSure SuGGeStIoNS DAIHATSU Laboratories recommend to use the 4WD F310 woofers in combination with sealed, vented and bandpass enclosures. To obtain the best possible performance of this woofer in your car audio system, make sure to follow the stated basic enclosure suggestions listed below. If the provided enclosure suggestions listed are not applicable to your system, contact your authorized DAIHATSU dealer to ask for further assistance. SeaLeD eNCLoSure e124WD F310 Net Volume: 45 l e154WD F310 75 l PorteD eNCLoSure I (SPL) Net Volume: Inner Diameter of Port: Length of Port: 60 l 2 x 10 cm 25 cm each 95 l 4 x 10 cm 27 cm each WarraNty PorteD eNCLoSure II (LoW BaSS) Net Volume: Inner Diameter of Port: Length of Port: 65 l 1 x 10 cm 28 cm 115 l 2 x 10 cm 30 cm each BaNDPaSS eNCLoSure Net Volume Ported Chamber: Net Volume Sealed Chamber: Inside Diameter of Ports: Length of Port: 32 l 27 l 2 x 10 cm 22 to 27 cm each 55 l 45 l 3 x 10 cm 18 to 25 cm each DAIHATSU Inc. warrants this SPLX4 woofer to be free of defects in materials and workmanship for two years from the original date of purchase at retail, contingent upon installation being performed or approved by an authorized DAIHATSU dealer. will at its own discretion repair or replace any mechanically defective 4WD F310 woofer at no charge, during the warranty period. Should your DAIHATSU woofer require warranty service, please return it to the retailer from whom it was purchased. Please do not send any product to DAIHATSU Inc. , Wyoming, Michigan U. S. A. [. . . ] Should your DAIHATSU woofer require warranty service, please return it to the retailer from whom it was purchased. Please do not send any product to DAIHATSU Inc. , Wyoming, Michigan U. S. A. [. . . ]