Well, the competition is heating up. Sonic Immersion Technology has released a stellar product in the IBEAM VT300 (formerly model 1442). We love to test these kinds of products when they come out and well we loved it. It is a relatively small but very powerful tactile transducer. The IBEAM VT300 is more accurate than any other transducer we have ever tested and packs more punch at the same settings. The IBEAM transducer packs more than enough force to vibrate a chair, couch or even a platform.
SIT Sonic Immersion Technologies IBEAM VT300 Transducer Specs:
· Wide Stable Output Frequency
· Very Sensitive which means more activity
· Very Accurate – Clean and Precise Response
· Built-in Overload Protection
· A Patent Pending Product
· Perfectly suited for Musical and Home Theater use
· 4 Ohm Impedance
· Minimum Recommended Power: 100 Watts
· Max Continuous Recommended Power: 250 Watts
· Dimensions: 6.5” L x 4.25”W x 2.75” H
· Weight: 3.5lbs
· Warranty: 1 Year

Reading the IBEAM White Paper is a must if you want to get a better understanding of Vibro-Tactile Transducers.