Yamaha Ensemble Mixer EM-90A Dirt it is basically a low

it is basically a low pass filter matrix controlled by input signal envelope

and Selmer departed from their normally staid and traditional finishes by adopting a very striking two-tone croc-skin/black colour scheme - just in time for the September 1963 British Music Trade Fair

but we're hot under the collar about the way this one reacts to abuse: feed it a hot signal from a drum machine

full-bodied sound

Yamaha Ensemble Mixer EM-90A Dirt it is basically a lowA genuine piece of music technology history from the 70s and very high tech at the time: a PA mixer from Yamaha with built in spring reverb and analogue beatbox. Having had it on our list for ages we finally took these photos and then someone promptly bought it. However, as a real curiosity we decided to put it up on here anyway. The basic spec is below, but first this original advert unearthed by the always superb Preservation Sound (for the first