However, the new platform has allowed for increased interior legroom, headroom, and shoulder room. Audio engineers select amplifiers that provide enough headroom. The rear seats were small and the slanting rear window limited rear headroom. Civic models with a moonroof have slightly less interior space due to reduced headroom. It includes a rear entrance with increased headroom, 4 seats behind driver partition. As screen sizes became larger, voltage and power headroom became insufficient. The Diamante was marginally larger with improved headroom. Other factors also come into play&colon; distortion, headroom, speaker efficiency. The 1973 "L" model brought in lower seats to provide more headroom for taller pilots. One disadvantage with this ceiling system is the reduced headroom. Standards bodies differ in their recommendations for nominal level and headroom. It is important to allow enough headroom for the mastering engineer's work. Eminem parodied Max Headroom in the music video. Frewer also appeared as Max Headroom in the music video for the track. The rights to the Max Headroom character were held by All3Media .