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tHanK YOu FOr CHOOsInG JBL®
For more than 70 years, JBL has been providing audio equipment for concert halls, recording studios and movie
theaters around the world and has become the trusted choice of leading recording artists and sound engineers.The
4309 is a new small-size bookshelf/monitor of the JBL Studio Monitor family designed for home use. To get the best
performance from your new loudspeakers, please read these instructions thoroughly.
PaCKaGe COntents
EACH JBL 4309 BOX CONTAINS:
2 x Loudspeakers
2 x Grilles (Pre-Installed)
2 x 4 Feet Pads 1x Quick Start Guide
QUICK START GUIDE
JBL 4309
6.5-inch (165 mm) 2-way Bookshelf Studio Monitor Loudspeaker
Package Contents Specications
2 x Loudspeakers
2 x Grilles (Pre-Installed)
4x Feet Pads
Receiver/Ampli er (One Channel Shown)
Placement and Positioning Basic Single-Wire Connection
Speaker Type 2-way Bookshelf Studio Monitor Loudspeaker
Low-frequency transducer 6.5" (165 mm) Pure Pulp, Low-distortion woofer Cast
Aluminum frame
High Frequency Transducer 1" (25mm) 2401H-2 annular ring, Teonex diaphragm
compresion driver
Maximum Recommended Ampli er Power 150 watts RMS
Frequency Response (-6 dB) 42 Hz - 30 kHz
Sensitivity (2.83 V @ 1 m) 87 dB
Nominal Impedance 4 Ohm
Crossover Frequencies 1.6 kHz
Enclosure type Bass-reex via Dual Flared Front- ring Ports
Inputs: Dual Gold-plated Five-way Binding Posts
Dimensions (H x W x D) with grille 10-1/5" x 16-1/2" x9.0" (260 mm x 420 mm x 228 mm)
Weight with grille 53.37 lb (24.21 kg)
Finishes Walnut or Black Walnut Woodgrain Veneer
+ -
- +
>50 cm
(20 in)
Listening Position
40°-60°
>50 cm
(20 in)
www.jblsynthesis.com
Manufacturer: Harman International Industries, Incorporated
Address: 8500 Balboa Blvd, Northridge, CA 91329, UNITED STATES
European Representative: Harman International Industries, Incorporated EMEA
Liaison Of ce, Herikerbergweg 9, 1101 CN Amsterdam, The Netherlands Hannan
International Industries, Limited,
Ground Floor, Westside 2, London Road, Apsley, Hemel Hempstead, Hertfordshire,
HP3 9TD, United Kingdom
If you suspect that there has been shipping damage, report it immediately to your dealer. We recommend that you
keep the box and packing materials for future use.
PLaCeMent anD POsItIOnInG
Before deciding where to place your speakers, survey your room and think about placement, using the illustration
below as a guide.
>50 cm
(20 in)
Listening Position
40°-60°
>50 cm
(20 in)
6-8 feet
1.8-2.4 m
Avoid placing the speakers near power amplifiers, heat registers or other objects that generate large amounts of heat.
Do not place the speakers in very humid or dusty places.
Do not place the speakers in direct sunlight or where they will be exposed to other strong light.
For best results, place the speakers 6–8 feet (1.8-2.4m) apart. If you place the speakers farther apart than this, angle
them toward the listening position.
The speakers will produce the most accurate stereo soundstage when the angle at the listener between the speakers
is from 40 and 60 degrees.
Position each speaker so that its horn center is pointed approximatelyat ear level.
Generally, bass output will increase as the speaker is moved closer to a wall or corner. For best performance, we
recommend that you place the speakers at least 20 inches (50cm) away from the side walls.
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