- High thermal dissipation and magnetic permeability plates, providing constant, even flux.
- Large double magnet, for perfect control under high power, high excursion conditions.
- Copper voice coil, wound on aluminium former, for startling thermal and mechanical capacity.
- Back plate vent holes, for very good thermal dissipation.
- Back Vented Spider support, for perfect symmetry under high excursion and thermal dissipation.
- Butyl rubber gasket provides ideal coupling to the mounting surface, damping basket resonance.
- Butyl rubber magnet ring provides protection against abrasions.
- Internally reinforced basket, protected from abrasions by high resistance paint.
- High current, tin-plated terminals.
- Silver plated silicone shielded lead wires for maximum reliability and conductivity.
- Basket and motor coupled and damped through special epoxy glue.
- Wide-wave, resin-bonded fibre spider for mechanical reliability and consistent parameters.
- High density Foam surround, for linear movement even under high excursion conditions.
- Water-repellent pressed paper cone.