SOUND&VISION MAGAZINE Speaker Testing Notes IN THE LAB

All of the response curves and measurements have been weighted to reflect the manner sound arrives at a listener's ears with normal speaker placement. The left/right front speakers were averaged over a �30� window, with double weight given to the most common listening angle, 30�. Sound delivered to the listener's ears from surround speakers will be reflected from room surfaces, so their response was averaged over a �60� window with double weight given to the widest off-axis angles. (If the speaker) system uses identical speakers for the front L/R and surround channels, the variations shown here simply reflect the different weightings. The center speaker's response was averaged over �45�, with double weight directly on-axis, where the primary listener will sit. � Tom Nousaine

NOTE: Key to reading the Speaker Frequency Graphs: The WIDER and FLATTER (for smoother balanced output) = THE BETTER!!!

Illustration from Sound&Vision Sept. 2001 Issue - pg. 102

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Why you should audition JBL speakers!

PI - April 17, 2001