JBL Professional Series Скачать руководство пользователя страница 7

JBL continually engages in research related to product improvement. 

New materials, production methods and design 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 description but is always warranted to 

equal or exceed the original design specifications unless otherwise 

stated. 

Содержание Professional Series

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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