Visaton 2948 k 50 fl thin round waterproof speaker 8 ohm visaton 2950 a waterproof 5cm 2in miniature speaker from visaton with plastic diaphragm offering a balanced frequency response from 150hz very compact design and good speech reproduction while ip protected on front side when built into a sealed enclosure making it suitable to outdoor applications and where ambient conditions are generally unfavourable visaton 2950 k 50 fl 50 ohm thin round waterproof speaker