Instruction/ maintenance manual of the product M9500 JBL
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M9500 MONITOR LOUDSPEAKERS OWNERS MANUAL M9500 Version 9/14/95 7/27/98 2:58 PM Page 1.
GENERAL S Y STEM DESCRIPTION The JBL M9500 monitor loudspeaker system represents a refinement of the principles that have guided JBL’s high-level monitor system design over the last thirty years. In keeping with contemporary monitoring practice, the system is essentially of two-way design.
Syst em Setup The M9500 systems are modular, each consisting of a stack of three separate enclosures. The larger of the bass enclosures are placed at the bottom, and the high-frequency/horn modules stack on top and are aligned by the screws that protrude on the bass section.
Option D, biamplification. This mode of operation requires a dedicated electronic dividing network crossing over at 650 Hz. We recommend the JBL DX-1 with internal compensation made for the M9500 system. If this mode is used, make sure that the screwdriver adjustment on the back of each network is set in the “biamp” position.
The JBL model 475Nd compression driver used in the M9500 has a smooth titanium dome 101 millimeters in diameter that has been lightly coated with Aquaplas™ damping compound. Its aluminum ribbon voice coil operates in a magnetic flux field of 1.65 tesla (16,500 gauss).
The directivity index (DI) of the H9500 horn is shown in Figure 5. The smoothly rising DI is a consequence of the gradual narrowing of the vertical dispersion angle above 2 kHz and contributes to the overall flatness of the high-frequency response of the system.
Car e and Maintenance of the Syst em Your M9500 monitors should give years of trouble-free service. Normally, the only routine maintenance will be cleaning.
JBL continually strives to improve its products. New materials, produc- tion methods and design refinements are introduced into existing models without notice as a routine expression of our design philosophy.
An important point after buying a device JBL M9500 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JBL M9500 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JBL M9500 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JBL M9500 you will learn all the available features of the product, as well as information on its operation. The information that you get JBL M9500 will certainly help you make a decision on the purchase.
If you already are a holder of JBL M9500, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JBL M9500.
However, one of the most important roles played by the user manual is to help in solving problems with JBL M9500. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JBL M9500 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
