JBL M9500 Owner's Manual
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JBL M9500 Owner's Manual

Monitor loudspeakers
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M9500

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Summary of Contents for JBL M9500

  • Page 1 M9500...
  • Page 2 finest components available and make use of dc bias on the capacitors for greater linearity. A single M9500 system is capable of producing sine wave out- put levels of 110 dB Lp at one meter with extremely low distortion. In terms of wide band program, this translates into levels of 120 dB Lp for the stereo pair at normal listening distances of 2 and 3 meters.

  • Page 3: System Setup

    System 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.
  • Page 4 650 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.
  • Page 5 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). Mid-band efficiency is 20%, while at the peak value of driver impedance it is in excess of 50%.
  • Page 6 10000 Figure 5. Plot directivity index (DI) and directivity factor (Q) of the H9500. 20000 Figure 6. On-axis response of M9500. Individual contributions of paralleled low-frequency transducers and high-frequency section are shown, along with their summation. The impedance curve is also given, showing a minimum value of 3 ohms in the 100 Hz range.
  • Page 7 Care and Maintenance of the System Your M9500 monitors should give years of trouble-free service. Normally, the only routine maintenance will be cleaning. The grilles may be cleaned of dust gently with a vacuum cleaner using a brush attachment. If there should be stains on the grille, a soft bristle brush moistened with a dilute mixture of water and dishwashing detergent may be used.
  • Page 8 For this reason, JBL M9500 Series Loudspeakers may differ in some respect from their published specifications and descriptions, but will always equal or exceed the original specifications unless otherwise stated.

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