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Professional Series 

Technical Manual 

Model 4311 

Control Monitor 

Summary of Contents for Professional Series

Page 1: ...Professional Series Technical Manual Model 4311 Control Monitor...

Page 2: ...dance 8 ohms High Frequency Dispersion 90 horizontal and vertical Frequency Response 45 15 000 Hz 3 d B Sensitivity2 42 dB at 30 teet with a 1 mW input averaged 500 to 2500 Hz with controls set for fl...

Page 3: ...itors and portable playback systems Components Low Frequency Bass material is reproduced by a powerful long excursion 12 inch loudspeaker having a 3 inch diam eter edgewound copper ribbon voice coil o...

Page 4: ...nding waves All components mount directly to the baffle panel and are removable from the front of the enclosure A ducted port provides proper acoustical loading of the low frequency loudspeaker Test P...

Page 5: ...4311 is indicative of an average program level that can be toler ated by the components without damage however transients can exceed this level by a considerable margin without danger To achieve the...

Page 6: ...ime to time With each application the beauty of the finish will become more obvious and a warm rich patina will eventually be obtained To re oil a JBL oiled walnut finish use any one of the several cl...

Page 7: ...n refinements are introduced into existing products without notice as a routine expression of that philosophy For this reason any current JBL product may differ in some respect from its published desc...

Page 8: ...UBL Professional Division James B Lansing Sound Inc 3249 Casitas Avenue Los Angeles California 90039 50657 PTB4311 74 Printed in U S A...

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