Method of depressurizing cross radiation using an acoustically resistive leak path

1. A method for improving the performance of a multiple frequency loudspeaker having at least one mid-frequency transducer and at least one high-frequency transducer driving a single unified horn, said method comprising the step of reducing secondary path mid-frequency energy through the use of small depressurizing slit openings down an inner half of a high-frequency stem.

2. The method of claim 1 wherein the openings are sized to be large enough to present a secondary leak path for rearward traveling waves of the high-frequency transducer to migrate out of the high-frequency stem thereby minimizing its ability to return back into the primary path.

3. The method of claim 2 wherein the width of each slit openings is small enough to present a high acoustical impedance orthogonal to high-frequency progressive wave front traveling down the high-frequency stem.

4. A multiple-frequency loudspeaker having at least one mid-frequency transducer and at least one high-frequency transducer driving a single unified horn, said loudspeaker comprising:

a) a horn mouth;

b) a horn stem connected to said horn mouth;

c) said at least one high-frequency transducer affixed proximate to said horn stem;

d) said at least one mid-frequency transducer fixed proximate to said at least one high frequency transducer; and

e) at least one depressurizing slit positioned in the horn stem.

5. The multiple-frequency loudspeaker of claim 4 wherein the size of the slit is chosen to be large enough to present a leak path for secondary energy to migrate out of the stem with no return path.

6. The multiple-frequency loudspeaker of claim 4 further comprising at least one low-frequency transducer positioned closer to the mouth of said horn.