Compression driver phase plug

a phase plug with one annular channel between the compression chamber and the horn throat, and could thus partly avoid the radial resonances and push the usable frequency limit further up. Smith's publication [36] has had a profound impact on compression driver phase plugs; for a cylindrical compression chamber with a rigid piston, he showed that.  · Ultimately, the compression driver phase plug’s core purpose is reducing the open area the driver diaphragm radiates into and then gradually transitioning that smaller area to the horn mouth’s cross section. The decrease in radiating area increases the local pressure and creates a better acoustic impedance match, which in turn increases output. The function of a phase plug within a compression driver is to provide an acoustic path which reduces out of phase acoustic signals and destructive cancellation or interference. However, efficient Cited by:

The phase plug is a complex and expensive element of the compression driver. Its manufacture requires fine tolerances. Phase plugs are machined in metals such as aluminum, or cast in hard plastic or Bakelite. Meyer Sound Laboratories chose a lightweight plastic because of its resistance to temperature and humidity. A compression driver is designed to increase the efficiency of a loudspeaker by compressing the acoustical energy and transferring it through the phase-plug channels to the throat of the horn. Other purpose of the phase-plug is to equalize the acoustic path lengths to thereby minimize high frequency cancellations caused by standing waves into. Phase plug for compression driver Download PDF Info Publication number USB2. USB2 US12/, USA USB2 US B2 US B2 US.

A new methodology for the acoustic design of compression driver phase-plugs with concentric annular channels. M Dodd, J Oclee-Brown. The compression driver is a simple acoustic transducer change in cross sectional area between the diaphragm and the phase plug openings is the. products Noise: PRO Audio Horn; Hi-Fi: Speaker Horn; Activity: Professional Speaker Accessories; Operation Mode: PA Speaker Kits; Speaker System: PRO.