JBL M9500 Owner'S Manual Download 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. 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
54.5 kg (120 lbs) lower LF
37.3 kg (82 lbs) horn assembly

Version 9/14/95  7/27/98 2:58 PM  Page 7

Summary of Contents for M9500

Page 1: ...M 9 5 0 0 M O N I T O R L O U D S P E A K E R S O W N E R S M A N U A L M9500...

Page 2: ...bi wiring tri wiring and biamplification The networks are designed around the finest components available and make use of dc bias on the capacitors for greater linearity A single M9500 system is capab...

Page 3: ...rious hookup options are shown in Figure 1 We will describe each of these options Option A single full range amplifier This mode of operation requires a relatively large high quality amplifier capable...

Page 4: ...used to bias the capacitors will normally last at least 5 years You may test it by pressing the gold logo on the front of the network If the LED on the front of the network illuminates the battery is...

Page 5: ...ece as well as through the use of a copper shorting ring on the top plate adjacent to the voice coil The transducers make use of JBL s Vented Gap Cooling in which forced air generated by cone motion r...

Page 6: ...s have been raised 20 dB and the val ues seen here lie well below 1 for the lowest frequencies up to 4 5 khz reaching a value of only 1 6 at 10 kHz Not many loudspeakers can demonstrate such low level...

Page 7: ...ger 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 par...

Page 8: ...philosophy 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 unl...

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