Scanspeak 10F/4424G00, 100mm Full-Range drive unit with wide and smooth frequency response.
With top notch design and high quality component parts, this is a really good small drive unit from the Scanspeak Discovery range. Features include a glass fibre cone, copper capped pole piece, compact diecast chassis and a large Neodymium magnet system. The sensitivity is quite high at a shade under 90dB - this is a good figure for a driver of this size.
Use as full range in small reflex enclosures or as a very fine midrange in larger designs ~ there are many possibilities.
This driver is 4 Ohms - the 8 Ohm version is here: 10F/8424G00