High quality Australian made enclosures supplied fully assembled with pre-drilled screw holes. Port installed with low turbulence bevelled edges. All internal surfaces are carpeted with acoustically damped material. Made from 18mm MDF with double thickness 36mm for the front panel. Internal bracing with edges chambered for excellent rigidity reducing cabinet resonance. MDF is covered in strong Black Vinyl veneer and includes attractive front cloth-grille on wooden routered frames fully assembled. LMS developed crossover is assembled with premium grade components. Linkwitz & Riley with Bessel-Butterworth response for linear phase. Air-core copper inductors and non-inductive resistors. SCR 400V metalised polypropylene capacitors manufactured in France. 4mm Gold-plated binding posts can be wired singular or Bi-wired. Low capacitance OFC Cable with no-soldering speaker connectors. Professional development time has produced a crossover solution that offers very low distortion, linear sound with very accurate phase response. Sold in pairs Australian made cabinets fully assembled Internal bracing to reduce resonances All box surfaces have acoustic dampening Internal edges are rounded to reduce diffraction Port is routered to reduce turbulence noise LMS Engineered custom crossovers Copper air coils & French SCR Capacitors Excellent phase with linear characteristics High SPL Peerless HDS drivers 832873 Matched JP3.0 Fountek Ribbon Tweeters Gold-plated 4mm Bi-Amp input terminals All wiring and screws included Extremely simple screw-driver assembly