The Screen 4 is a 3-way system, with dedicated mid-range and high frequency sections.  Developed by Martin

Audio systems designers, this innovative solution overcomes the strenuous demands on the high frequency

section of traditional 2-way cinema systems.  By splitting the frequency band from 630Hz-20kHz into dedicated

mid-range and high frequency sections the Screen 4 produces superior, low distortion sound for small/medium

scale cinema environments. 

The bass enclosure, with twin 15\" (380mm) high power reflex loaded bass drivers, is designed in a shallow

format for behind-the-screen placement.  The bracket mounted compound MF/HF horn section can be easily

adjusted and aimed for optimum audience reception.

Exceptionally smooth, flat sound in front of the screen and astonishingly high SPL’s are produced via the

innovative combined mid and HF horn which operates above 630Hz, avoiding the distortion associated with

traditional large format compression drivers. The mid-range horn operates from 630Hz-3kHz and features a

special 6.5\" (165mm) treated cone drive unit mounted on a 90˚ x 40˚ horn with a unique ‘phase-ball’ loading

device, which exhibits exemplary pattern control to minimise seat to seat variation. The constant Q high

frequency horn, utilising a 1\" (25mm) compression driver operating from 3kHz-20kHz, exactly matches the

coverage pattern of the mid horn. A 3kHz passive crossover network ensures smooth transition between mid

and HF horns. Full performance of the Screen 4 is normally achieved when configured for bi-amped operation

using the Martin Audio CMX1A cinema controller to feed two separate amplifier channels driving the bass

enclosure and horn section.