1939

High Efficiency Speaker Asylum

Need speakers that can rock with just one watt? You found da place.

In Reply to: RCA Twin-Power posted by angeloitacare on May 12, 2012 at 08:05:14:

The Twinpower was first used at the 1939 World's Fair.
( The Green AES "loudspeakers" book

The back has vibration issues- a dip at 150-Hz.

They were too big to fit through a door.
And they were used at a Beatles concert ( 12 units) in NY, as far as I know.

I have built a number of these out of fiberglass, but foolishly did not take advantage of the co-ax feature. I have curves done at Canada's NRC.

They have a very uncolored sound.

Bill

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Follow Ups Full Thread

Topic - RCA Twin-Power - angeloitacare 08:05:14 05/12/12 (5)

I have been looking for some gear from the tempestuous period. nt - viridian 21:22:22 05/13/12 (0)

1939 - RCA-fan 05/13/1209:54:44 05/13/12 (0)

Maybe these should be called Triple-Power... - Topper 15:50:56 05/12/12 (0)

RE: RCA Twin-Power - tomservo 10:48:18 05/12/12 (1)

RE: RCA Twin-Power - TubeBuilder 06:34:58 05/13/12 (0)

Follow Ups

1939 - RCA-fan 05/13/1209:54:44 05/13/12 (0)

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