Altec Lansing

Altec Lansing is a line of professional, home, automotive, computer, and multimedia audio products beginning in 1936.
Some of the most famous products produced under the Altec Lansing brand name include "The Voice of the Theatre" (a series of professional loudspeakers for cinema applications created in 1947), and "inMotion", a line of portable speakers designed for the Apple iPod. Altec Lansing's Sound Products Division provided the loudspeakers for the Woodstock Festival 1969.
The current incarnation of the company, called Altec Lansing Technologies, is an OEM supplier to many computer makers such as Asus, Dell, Compaq, Hewlett-Packard, and Gateway, but probably much better known and remembered for their much sought after valve (tube) era equipment such as the amplifier below, and their range of superb loudspeakers.

1947 Altec Amplifier
1947 Altec Amplifier

Altec Lansing Duplex
Original Advertisement for Altec Lansing Duplex Speaker