TT25-8 PUCK 8 Ohm Exciter Overview Dayton Audio's TT25-8 PUCK is a small, 8 ohm tactile transducer or mini bass shaker that is intended to be used in home theater, gaming, and auto sound applications. Highlights - Quality construction and economically priced - Add tactile feedback to chairs and couches for the ultimate gaming and movie experience - Small and easy to install Dayton Audio TT25-8 PUCK Tactile Transducer Mini Bass Shaker 8 Ohm The PUCK by Dayton Audio is a small, economical tactile transducer otherwise known as a mini bass shaker that is intended to be used in home theater, gaming, and auto sound applications. This mini bass shaker has the unique ability to transfer low frequency sound waves directly to the listener by mounting the PUCK¿ to surface areas that a listener's body will come into contact with. Because the listener "feels" the low frequency, the volume of the overall sound can be kept to a minimum without sacrificing the audio quality. The PUCK measures a mere 3-1/2" diameter and 1" depth, nearly identical in size to an ice hockey puck. The small depth and diameter of the PUCK mini bass shaker make it uniquely suited for tight spaces and unobtrusive applications. 4 layer Voice Coil with 1" aluminum former.