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Radio Shack 40-1270D Cone Tweeter


Radio Shack 40-1270D Cone Tweeter

Note - this driver has been discontinued and is no longer being produced. This is a nice looking 1-3/4" tweeter with a paper cone. The tweeter comes from the factory with a 4uF electrolytic capacitor that can be easily removed. Pictures of the tweeter and original box are shown below.

Radio Shack 40-1270D Box

Radio Shack 40-1270D Tweeter

I liked the look of HF response and the good efficency so I figured that they may be well suited to fill in the high end in a system with the Radio Shack 40-1197. The frequency reponse curve as measured by Radio Shack is shown below. The response is very flat beyond about 8k with good efficency, 95dB.

Radio Shack 40-1270D Frequency Response Curve


Datasheet - Radio Shack 40-1270D Tweeter