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INTRODUCTION

Thank you for purchasing the 

JBL® 4312G 3-Way Studio Monitor.

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 4312G honors 
that legacy with the iconic 12-inch (300mm) 3-way configuration that dates back to 1968 with the original Model 4310 
Control Monitor. Utilizing a compact monitor-type footprint, the 4312G features advanced JBL transducers including 
the JW300SW-8 Pure Pulp cone woofer, the JM125PC-8 Polymer-coated Pure Pulp cone midrange, and the 054ALMg-1 
Aluminum/Magnesium Alloy tweeter. 

PACKAGE CONTENTS

JBL 4312G loudspeakers are sold in mirror-image matched pairs. The outer carton serves to protect two internal cartons 
each containing a single loudspeaker with a removable grille.

PLACEMENT AND POSITIONING

CAUTION: The 4312G weighs 55.5 lb. (25.2 kg) each. Before placing the speaker on a shelf or platform, be sure 

that it is sturdy enough to support the speaker’s weight.

Before deciding where to place your speakers, survey your room and think about placement, using the illustration below 
as a guide.

• 

 Avoid placing the speakers near power amplifiers, 

min 20 inches

(50cm)

6-8 feet

(1.8-2.4m)

40° – 60°

Listening Position

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 between the listener and the 
speakers is between 40 and 60 degrees.

• 

 Position each speaker so that its tweeter is approximately at 
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.

• 

 The 4312G may be stand mounted with the optional JBL metal stands (model JBL JS-120, sold separately) that angle 
the speaker upward.

LEFT AND RIGHT PLACEMENT

The JBL 4312G is sold as mirror-image pair of loudspeakers with one having the tweeter on the left side and the other 
having the tweeter on the right side, yet neither one is marked or defined as a “LEFT” or “RIGHT” channel loudspeaker. 
Which one should be used for the left channel and which one should be used for the right channel will depend on a 
combination of factors including the listening distance from the speakers, the width of the room, acoustic reflectivity of 
the room, and horizontal versus vertical positioning of the loudspeaker.

It is typically best to position the loudspeakers to create a triangle of three equal sides when measuring the distances 
between the tweeters in each speaker and the distance from the listener to each tweeter. In smaller rooms or instances 
where the listening position is relatively close to the loudspeakers, this will usually result in the tweeters being 
positioned to the inside of the listening triangle. This positioning can also be desirable in a more acoustically reflective 
room or when the speakers are placed on a shelf or close to a side wall.

Содержание 4312G

Страница 1: ...ENCY LEVEL 0 10 1 9 2 8 3 7 4 6 5 MODEL 4312G CONTROL MONITOR 0 10 1 9 2 8 3 7 4 6 5 MODEL 4312G MODEL 4312G Impedance 6 Ohms Power Handling 200 Watts Sensitivity 90 dB Harman International Industries...

Страница 2: ...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 between the list...

Страница 3: ...ositioned to the outside of the listening triangle This positioning will result in a wider soundstage but may require slightly greater toe in for the left and right channel speakers in order to mainta...

Страница 4: ...its connection procedures BASIC SINGLE WIRE CONNECTION Connect the amplifier to each speaker as shown in Receiver or Amplifier one channel shown Speaker Connector Panel the illustration on the right...

Страница 5: ...hs or cleaning paper may dull the cabinet s finish Do not use volatile liquids such as benzene paint thinner alcohol etc on the cabinet Do not spray insecticide near the cabinet To remove dust from th...

Страница 6: ...el manual de usuario de soporte en idiomas adicionales Weitere Sprachfassungen der Bedienungsanleitung findest Du unter JBL COM JBLSYNTHESIS COM Si prega di visitare JBL COM JBLSYNTHESIS COM per i man...

Страница 7: ...s com 2018 HARMAN International Industries Incorporated All rights reserved JBL is a trademarks of HARMAN International Industries Incorporated registered in the United States and or other countries F...

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