JBL M9500 owner manual Care and Maintenance of the System

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. The same mixture may be used for cleaning the enclosure finish itself if it has become smudged.

As mentioned before, the 9-volt batteries in the dividing net- works will last perhaps as long as their normal shelf life. You may expect them to last at least 5 years. If the LED no longer lights, remove the acrylic door on the front of the network and replace them.

System Specifications

Acoustic and Electrical Specifications:

Sensitivity:	95 dB for 2.83 V @ 1 meter
Rated Impedance (LF parallel):4 Ohms
Minimum Impedance:	3.0 Ohms @ 100 Hz
Frequency Response:	35 Hz to 20 kHz (half space)
Crossover Frequency:	650 Hz

System Polarity:

EIA (positive voltage to red terminal produced outward cone motion)

System Components and Physical Specifications:

Low-Frequency Transducer:	1400 Nd
High-Frequency Transducer:	475 Nd
Horn Assembly:	H9500
Dividing Network:	N9500

Enclosure Volumes:

78 liters (2.8 cu ft) 35 Hz tuning (upper LF) 115 liters (4.1 cu ft) 28 Hz tuning (lower LF)

System Dimensions:

140 mm H x 330 mm W x 403 mm D (55"H x 15.13"W x 15.88"D)

Total depth including horn 521 mm (20.5")

Weight: 38.2 kg (84 lbs) upper LF

54.5kg (120 lbs) lower LF

37.3kg (82 lbs) horn assembly