Northern/ Western Electric Mirrophonic sound systems
After some research, I am almost sure that the old theater that my dad worked in as a projectionist, had this sound equipment.( The Capital, Welland Ontario).
This equipment was released around 1935, the year the Capitol opened. The speakers were huge! A three way system on a open baffle, Three 15 inch woofers, two 12 ft by 12 ft snail horns and two small flare tweeters. MGM hated this sound system because they were mainly into musicals at the time, because single step taps coming out of these huge horns sounded like two.
Douglas Shearer and MGM developed their own system which was the genesis of the famous Altec Voice of the Theater speakers.
Does anyone remember these old systems and could provide some insight on how may Mirrophonic systems existed in the US and Canada?