User manual EMPHASER SPL-X4

[. . . ] SPL-X4 Woofer SPeCIfICatIoN SHeet SPL-X4 Woofer Key featureS Proprietary Die-Cast Aluminum Basket 315 oz. Triple Stacked Ceramic Sr-Fe Magnet NomexTM Composite Cone with Stitched Surround Broad High Excursion Polyether Surround Laminated NomexTM Quadruple Spider 3 ½" Laminated BASV Voice-Coil Former Structurally Reinforced VC Former Neck 4-Layer Wound 2 x 2 Ohms CCAW Double Voice Coil Faraday Copper Ring on Center Pole Perimeter Vented Basket Design CNC Machined Front Pole Plate & T-Yoke Undercut & Extended Center Pole Laterally Cross Vented Center Pole Insulated Tinsel Lead Wires Oversized Screw Terminals ciency. [. . . ] hardening of material at temperatures below 5°C. NoMeXTM QuaDruPLe SPIDer The SPL-X4 woofer models deploy mirrored NomexTM quadruple spiders with huge diameters for large cone excursion. The quadruple spider design keeps the voice coil in perfect alignment up to highest cone excursions, while the progressive deflection characteristics protect the surround from failure when the cone is driven to its mech. NomexTM material stands out with its unparalleled durability against mechanical failure, aging or any other degradation based on physical strain. 17. 5mm 17. 5mm (one way) (one way) 510 cm2 1785cm3 2. 36 mH (series) 84. 2 dB/ 1W/1m 855 cm2 2993 cm3 2. 40 mH (series) 85. 0dB/ 1W/1m 4-Layer WouND CCaW VoICe CoIL A 4-layer wound copper clad alumimum double voice coil with extended winding height provides the necessary thermal power handling for high SPL output, but keeps the moving mass low for increased effi- SPL-X4 Woofer SPeCIfICatIoN SHeet MouNtING DIMeNSIoNS e12SPL-X4 Mounting Cutout Diameter Rear Mounting Clearance (Mounting Depth) 284 mm 216 mm e15SPL-X4 358 mm 249 mm eNCLoSure CoNStruCtIoN / CaBINet DaMPING / BreaK-IN INfo Always use at least 25mm or thicker MDF or birch plywood to build the enclosure. Make sure all joints are well sealed, since a woofer can only reach optimum performance when mounted to an airtight cabinet! The enclosures should be damped according to their function principle: The sealed enclosure must be filled with polyfill (bonded acrylic fiber). The inner walls of the ported enclosure should be lined out with egg crate PU-foam. The sealed chamber of the bandpass enclosure has to be lined with PU-foam, while the ported chamber remains free of any damping material. Loudspeakers using spiders made of NomexTM need extra time to break-in!Out of the box, the suspension sytem of any SPL-X4 woofer is extremely stiff. To achieve optimum low bass response, this EMPHASER woofer model will need approximately two weeks of daily playing at medium playback levels. [. . . ] abuse of this loudspeaker is not covered under warranty. The warranty does Not cover: Woofers that have been used to participate in SPL contests Any freight damage Woofers damaged due to amplifier clipping or distortion Exposure to water, oil, solvents or excessive heat Repair attempts by unauthorized individuals Install damage (screwdriver holes) EMPHASER Inc. [. . . ]