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Q: Why do these speakers sound different than other loudspeakers ?

Most line source speakers exhibit an extreme narrowing of the horizontal dispersion pattern in the higher frequencies. We knew from our work with wide-dispersion electrostatics (90 to 180 degrees of dispersion) that a line source can sound "right" with a flat on-axis response if its horizontal dispersion pattern remains wide at higher frequencies. The ribbon Davidson is using has this characteristic at high frequencies, and does not require a downward sloping frequency response to sound natural. However, listen at 60 degrees off axis and the Panga and Panga C exibit a gently falling frequence responce from 100 Hz to beyond 20,000 hz ( within a +- 2.5 db window ). It is a matter of taste which perspective you prefer.

Apart from the differences between a floor to ceiling dipole line source and all other designs, many loudspeakers are built to have a highly idiosyncratic frequency response with one or more areas of boost or cut. This designed-in voicing colors the sound of every recording played. Some people become very attached to a specific coloration.

Finally, most loudspeakers are designed with a hump in their frequency response of 3 to
12 db in the range from 40 to 90 hz. When combined with the natural reinforcement in the bass from room boundaries, the sonic effect masks the lack of a bottom octave and gives all recordings an unnatural "impact." Regrettably, many audiophiles, who would never consider using an electronic bass boast are addicted to speakers with a designed in bass hump.

"Mama, please don't let your kids grow up to be Pangas."

Opening lyric of the off-broadway musical based on Dr. Bambamba's book:
Death of a Tiger.

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