In an effort to offer complete product functionality, Auralex offers two versions of the MoPad. The standard MoPad, which is designed to fit most 4-6 inch studio monitors and speakers, comes in two pairs of slim pads—allowing for a variety of isolation options for the most narrow or wider monitors. The MoPad XL, which consists of one pair of pads, are thicker and sturdy enough to support 6.5-8 inch monitors—whether they be bi-amped or heavier three-way monitors. The extra slanted foam pads, which come with either incarnation, allows you to tilt and angle you drivers upwards or downwards in a variety of styles and configurations.