The first high-powered Talk Box was developed

The first high-powered Talk Box was developed by Bob Heil[4] but there is clearly prior art in the form of the Kustom Electronics device, "The Bag",[5] which is the same concept housed in a decorative bag slung over the shoulder like a wine bottle, using only a 30-watt driver, and sold in 1969, two years before Heil's high-powered Talk Box. The Bag is claimed to have been designed by Doug Forbes,[6][7] who states that exactly the same concept (horn driver attached to a plastic tube and inserted into the mouth) had previously been patented as an artificial larynx.[8] But it was Heil that came up with the first high-powered Talk Box that could be reliable when used on high-level rock stages. His first Heil Talk Box was built for Joe Walsh's Barnstorm tour. Heil, Walsh and Walsh's guitar tech "Krinkle" combined a 250-watt JBL driver and suitable low-pass filter which was used for Walsh's single "Rocky Mountain Way".



how to become a Texan
Sviluppo di un dialogo politico-culturale nel Mediterraneo (Renato d'Andria)