JBL 4312SE User manual

OWNER’S MANUAL
MODEL 4312SE
12-Inch (300mm), 3-Way Studio Monitor

2
INTRODUCTION
Thank you for purchasing the JBL® 4312SE 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 4312SE honors that legacy with the iconic 12-inch (300mm) 3-way conguration that dates
back to 1968 with the original Model 4310 Control Monitor. Utilizing a compact monitor-type footprint, the
4312SE features advanced JBL transducers including the FE1200-8 Aqua-plas-coated Pure Pulp cone
woofer, the 105H-1 Polymer-coated Pure Pulp cone midrange, and the 054ALMg-1 Aluminum/Magnesium
Alloy tweeter. Special 70th Anniversary badges are afxed to the loudspeaker and a unique 70th Anniversary
certicate is included with the serial numbers of the individual loudspeakers and signatures of the system
engineer and factory assembly technician. Following in the footsteps of the storied JBL anniversary monitors
like the 4312 MkII and Century Gold, the 4312SE is sure to become a legend among JBL fans.
PACKAGE CONTENTS
JBL 4312SE loudspeakers are sold in mirror-image matched pairs with consecutive serial numbers. The outer
carton serves to protect two internal cartons each containing a single loudspeaker with a removable grille.
PLACEMENT AND POSITIONING
CAUTION: The 4312SE 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 ampliers, 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.
LEFT AND RIGHT PLACEMENT
The JBL 4312SE 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 dened 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 reectivity 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 reective room or when the speakers are placed on a shelf or close to a side wall.

3
4312SE Owner’s Manual
English
HORIZONTAL ORIENTATION:
Left Channel Right Channel
VERTICAL ORIENTATION:
Left Channel Right Channel
In larger rooms or instances where the listening position is relatively further away from the loudspeakers, this will
usually result in the tweeters being positioned 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
maintain proper center imaging. This positioning can also be desirable in a more acoustically absorptive room or
when the speakers are placed along the long wall of a rectangular dimension room.
HORIZONTAL ORIENTATION:
Left Channel Right Channel
VERTICAL ORIENTATION:
Left Channel Right Channel

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CONNECTIONS
CAUTION: Make sure that all of the system’s electrical components are turned OFF (and preferably
unplugged from their AC outlets) before making any connections.
Speakers and ampliers have corresponding positive and negative (“+” and “–”)
Negative (–)
Terminals
Positive (+)
Terminals
connection terminals. The 4312SE has color-coded connection terminals. The “+”
terminal is red, while the “–” terminal is black. See the illustration on the right.
The 4312SE is designed so that a positive voltage at the “+” (red) terminal will cause
the speaker drivers to move outward (toward the room).
We recommend using a high-quality speaker cable with polarity coding. The side of
the cable with a ridge or other coding is usually considered positive polarity (“+”).
To ensure proper polarity, connect each “+” terminal on the back of the amplier or
receiver to the respective “+” (red) terminal on each speaker. Connect the “–” (black)
terminals in a similar way. See your receiver or amplier’s owner’s manual to conrm
its connection procedures.
BASIC SINGLE-WIRE CONNECTION
Connect the amplier to each speaker as shown in
+ –
Receiver or Amplifier
(one channel shown)
Speaker
Connector Panel
the illustration on the right.
IMPORTANT: Do not reverse polarities
(i.e., “+” to “–” or “–” to “+”) when making
connections. Doing so will cause poor stereo
imaging and diminished bass performance.
The 4312SE’s gold-plated speaker terminals can
accept a variety of wire connector types: bare
wire, spade connectors, pin connectors and
banana connectors.
USING BARE WIRE OR PIN CONNECTORS:
IMPORTANT: Make sure that the (+) and (–)
A. Unscrew
Cap
B. Insert Bare Wire or
Pin Connector through
Hole in Post
C. Tighten Cap to
Secure
wires or pins do not touch each other or the other
terminal. Touching wires can cause a short circuit that
can damage your receiver or amplier.
USING SPADE CONNECTORS:
IMPORTANT: Make sure the (+) and (–) spade
A. Unscrew
Cap
B. Insert Spade
Connector Blades
around Post
C. Tighten Cap
connector blades do not touch each other or the other
terminal. Touching blades can cause a short circuit that can
damage your receiver or amplier.
USING BANANA CONNECTORS:
A. Tighten
Cap
B. Insert Banana
Connector into Hole
in Cap

5
54312SE Owner’s Manual
English
CONTROLS/ADJUSTMENTS
The 4312SE has front-panel adjustments that let you balance the levels of
Midrange
Control
Tweeter
Control
the midrange driver (MF) and tweeter (HF) relative to the woofer.
You can use these controls to adjust the speaker’s sound according to your
room’s acoustics, or your personal taste. The “center” default position is with
the marks on the knobs pointing towards the number ve.
As with most speakers, after you start playing the 4312SE it will take the
drivers’ suspensions several weeks to “break in” and achieve optimum
performance. During this period, the balance between the woofer, midrange
and tweeter may change, so we recommend that you adjust the midrange
and tweeter controls accordingly.
NOTE: There is a protective plastic lm on the front control panel label and back panel model name plate. This
may be removed upon installation.
CARING FOR YOUR SPEAKERS
• Wipe the cabinet with a clean, dry cloth to remove dust. Damp cloths or cleaning paper may dull the
cabinet’s nish.
• 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 the grille fabric, use a vacuum cleaner set to low suction.
• Do not wash the grille in water, as this may fade the color or make it uneven.
• If the surfaces of the woofer and midrange cones become dusty, you can carefully sweep them clean with
a soft, dry calligraphy brush or paint brush. Do not use a damp cloth.
• NEVER touch anything to the tweeter dome.
SPECIFICATIONS
System Type 3-way Bass-reex Monitor
Woofer 12-inch (300mm) Aqua-plas-coated Pure Pulp cone (1200FE-8)
Midrange 5-inch (125mm) Polymer-coated, Pure Pulp cone (Model 105H-1)
Tweeter 1-inch (25 mm) Magnesium/Aluminum Alloy dome (054ALMg-1)
Impedance 6 ohms
Recommended Amplier Power 10-200 Watts RMS
Sensitivity (2.83V/1m) 90dB
Frequency Response 44Hz-40kHz (-6dB)
Crossover Frequencies 640Hz, 5kHz
Controls Attenuators for MF and HF Drivers
Connector Type Five-way Binding Posts
Finish Black Woodgrain with Black Grille and Unique 70th Anniversary
Badges
Dimensions (H x W x D) 23 1/2" x 14-1/4" x 12" (597mm x 362mm x 305mm)
Weight 55.5 lb (25.2 kg) each

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Торговая марка: JBL
Назначение товара: Пассивная акустическая система
Изготовитель: Харман Интернешнл Индастриз Инкорпорейтед, США, 06901 Коннектикут, г.Стэмфорд, Атлантик
Стрит 400, офис 1500
Страна происхождения: Мексика
Импортер в Россию: ООО Внешторг-Юг, Россия, 171640, Тверская область, г.Кашин, ул. Карла Маркса, д.57A
Гарантийный период: 1 год
Информация о сервисных центрах: http://absolut-audio.ru/Servis/ тел. [phone]
Срок службы: 5 лет
Срок хранения: не ограничен
Условия хранения: Cтандартные при нормальных значениях климатических факторов внешней среды
Номер документа соответствия: Товар не подлежит обязательной сертификации
Дата производства: Дата изготовления устройства определяется по двум буквенным обозначениям из второй группы
символов серийного номера изделия, следующих после разделительного знака «-». Кодировка
соответствует порядку букв латинского алфавита, начиная с января 2010 года:
000000-MY0000000, где «M» - месяц производства (А - январь, B - февраль,
C - март и т.д.) и «Y» - год производства (A - 2010, B - 2011, C - 2012 и т.д.).
产品中有害物质的名称及含量
部件名称 目标部件
有害物质或元素
铅(Pb) 汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联茉
(PBB)
多溴二苯醚
(PBDE)
电路板 印刷电路板，电路板上的电子零件（不包括
特定电子零件），内部相关连接线 X 0 0 0 0 0
框体 外壳，面板，背板等 X 0 0 0 0 0
特定电子零
部件 变压器，保险丝，大型电解电容，电源插座 X 0 0 0 0 0
附件 电线，说明书，包装等 X 0 0 0 0 0
本表格依据SJ/T 11364的规定编制
O：表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572 规定的限量要求以下。
X：表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T 26572规定的限量要求。
在中华人民共和国境内销售的电子电气产品上将印有”环保使用期”(EPuP)符号。
圆圈中的数字代表产品的正常环保使用年限。

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8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com www.jblsynthesis.com
© 2016 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.
Features, specications and appearance are subject to change without notice.
Part No. 950-0536-001 Rev. A