User Guide
JBL Professional®
UniAmp Power Amplifier Module
Model 1214
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201109/UA1214UG_v1.1
User Guide - JBL Professional
®
UniAmp Power Amplifier Module , Model 1214
This document confirms that products manufactured by JBL
Professional bearing the CE label meet all the requirements
in the EMC directive 2004/108/EC and LV directive 2006/95/
EC laid down by the Member States Council for adjustment
of legal requirements. Furthermore the products comply
with the rules and regulations from 30 August 1995
referring to the electromagnetic compatibility of devices.
JBL Professional products bearing the CE label comply with
the following harmonised or national standards:
EMC:
EN 55103-1 :1997
EN 55103-2 :1997
Safety:
IEC 60065 :2002
Mains Harmonics:
EN 61000-3-2 :2001
Insulation:
Class1
JBL Professional
8500 Balboa Blvd.
Northridge, CA 91329
USA
(818) 894 8850
March 2014.
USER’S NOTICE AND DISCLAIMER:
No part of this manual including the software described in
it may be reproduced, transmitted, transcribed, stored in a
database system or translated without the express written
permission of JBL Professional.
Documentation kept by the end user for back-up purposes
is excluded from the above.
All products and corporate names mentioned in this
manual may be registered trademarks or copyrights of their
respective companies. They are used here for indicative
purposes only.
The information contained in this manual has been carefully
checked for accuracy; however no guarantee is given with
respect to its correctness. JBL Professional accepts no
responsibility or liability for any errors or inaccuracies that
may appear in this manual or the products and software
described in it.
Specifications and information contained in this manual
are subject to change at any time without notice.
© 2014 JBL Professional. All rights reserved.
REFERENCE TO EC STATEMENT OF CONFORMITY
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UniAmp Power Amplifier Module , Model 1214
Reference to Statements of Conformity ...................2
User’s Notice and disclaimer............................2
1. Important Safety Instructions ........................ 4
2. Introduction ...................................... 5
Applicable models and variants.....................5
3. Connector and wiring details......................... 6
Connector panel diagram .........................6
AC Mains......................................6
Audio connections...............................7
Network connections.............................8
4. Presets .......................................... 8
Recalling Presets ................................8
5. Reset............................................ 9
6. Other ........................................... 9
Status LED .....................................9
Cooling .......................................9
7. Configuring with WinControl ....................... 10
Connecting to a PC .............................10
Basic software options ..........................10
8. Appendix ....................................... 11
Network cables ................................11
Specifications .................................11
TABLE OF CONTENTS
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UniAmp Power Amplifier Module , Model 1214
This symbol is intended to alert you to the
presence of uninsulated dangerous voltages
within the product’s enclosure that may be
of sufficient magnitude to constitute a risk of
electric shock.
This symbol is used throughout this manual
and is intended to alert you to the presence of
important instructions.
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarised or
grounding-type plug. A grounding-type plug has two
blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10) Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.
11) Only use attachments/accessories specified by
the manufacturer.
12) Use only with the cart, stand, tripod, bracket
or table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid
injury from tip-over.
13) Unplug this apparatus during lightning storms or when
unused for long periods of time.
14) Refer servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
Warning -To reduce the risk of fire or electric
shock, do not expose this apparatus to rain
or moisture and objects filled with liquids,
such as vases, should not be placed on this apparatus.
Warning - To disconnect this apparatus from
the mains power supply, turn off the power
at the switch labelled Power on the connector
panel and remove the PowerCon
®
connector from the
mains input socket labelled Mains Power Input.
Warning - The PowerCon
®
connector should
never be plugged or unplugged when there is
power on the connector, regardless of whether
the amplifier is switched on or not. ALWAYS ensure that
the mains supply is turned off at source before inserting
or removing the PowerCon®.
Warning - This apparatus is a Class I device and
must be connected to a mains socket outlet that
provides a safety ground connection.
1. IMPORTANT SAFETY INSTRUCTIONS
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UniAmp Power Amplifier Module , Model 1214
This guide describes the operating procedures for the JBL
Professional® UniAmp 1214 power amplifier module.
The UniAmp 1214 is a mains-powered power amplifier
module incorporating a DSP (Digital Signal Processing)
section. It has a single input and multiple speaker outputs,
the number being model-dependent. The DSP section acts
as a multi-band crossover and also controls equalization,
per-channel levels, delays, limiting action, etc.
The DSP may be configured to suit individual applications
and requirements via JBL Professional
®
’s WinControl
software application. This level of configuration should
not be confused with the per-model factory hardware
configuration referred to in the next section (Applicable
models and variants). WinControl also permits constant
monitoring of all units in a multiple-cabinet system during
operation. WinControl is available as download from
www.jblpro.com.
This guide does not cover any aspects of the host
loudspeaker system or installation thereof; these topics
are the subject of a separate Installation Manual, supplied
with each loudspeaker.
APPLICABLE MODELS AND VARIANTS
The UniAmp 1214 is the power amplifier module
fitted as standard to the following JBL Professional®
powered loudspeakers:
Flex range:
U-12
G2
U-14
G2
UFM-265
G2
IMPORTANT – Each UniAmp 1214 is configured
in the factory to suit the loudspeaker type in
which it is to be installed. These configuration
differences can be at hardware level, and it is generally
NOT possible to interchange UniAmp 1214 modules
between loudspeaker types.
The UniAmp 1214 has no user-serviceable parts, and no
attempt should be made to remove a module from its host
enclosure. Please contact your JBL Professional
®
distributor
in the event of faulty operation.
2. INTRODUCTION
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UniAmp Power Amplifier Module , Model 1214
1
Audio input connector
2 Audio link connector
3 RS-485 network input connector
4 RS-485 network link connector
5 AC mains input connector
6 AC mains link connector
7 Mains switch with internal neon indicator (red)
8 Status LED
9 Reset and Preset Control (access hole)
AC MAINS
Two Neutrik
®
PowerCon® chassis connectors are
fitted to the UniAmp 1214. The Input connector
(coloured blue) is a Neutrik
®
Type A, and is intended
for connection of the AC mains supply; the Link
connector (coloured grey) is a Neutrik
®
Type B, and
is to facilitate connection to another module in an
adjacent enclosure.
Note that the Link connector is not
independently fused.
The full-load power consumption of the amplifier
module is model dependant but does not exceed
250 VA, please refer to the individual data sheets for
model specific information. When “daisy-chaining”
AC mains between several enclosures of the same
type using the Input and Link connectors, ensure that
the current capacity of the supply is sufficient for
ALL amplifiers in the chain, and additionally, that
the total current drawn by all the amplifiers does
not exceed 16 A.
In practice, this means that the maximum
number of amplifiers (including the first
one) that may be daisy-chained in this way
is fifteen (230 V operation) or eight (115 V operation).
Only wire AC mains connectors according to the
table below:
3. CONNECTOR AND WIRING DETAILS
PIN CONNECT
COLOUR
(Europe)
COLOR
(US)
L Live Brown Black
N Neutral Blue White
Earth
(Ground)
Geen/Yellow Green
1 2 3 4 5
8 9
6 7
CONNECTOR PANEL DIAGRAM
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UniAmp Power Amplifier Module , Model 1214
The UniAmp 1214 incorporates a “universal” PSU,
and will operate on all 50/60 Hz AC mains voltages
from 100 V to 240 V.
The AC mains fuse is integrated into the internal
power supply and is not user replaceable.
The PowerCon
®
connectors are plugged and
unplugged as shown in the diagram below.
IMPORTANT – The PowerCon
®
connectors
should never be plugged or unplugged
when there is power on the connectors,
regardless of whether the amplifier is switched on
or not. ALWAYS ensure that the mains supply is
turned off at its source before inserting or removing
either PowerCon
®
.
Warning – This apparatus is a Class I device and
must be connected to a mains socket outlet
that provides a safety ground connection.
Warning – If the mains switch of the
UniAmp 1214 is not readily accessible after
installation to disconnect the unit when
necessary, the mains connection to the UniAmp 1214
should be easily accessible.
AUDIO CONNECTIONS
Two latching 3-pin XLR connectors are fitted for
audio interconnections. The Input connector (female)
is for connection of an audio input signal; the Link
connector (male) is hardwired to the input connector,
and facilitates easy connection to another amplifier in
an adjacent enclosure.
The UniAmp 1214’s audio input and output are
twin transformer-balanced, and are designed to
operate at a nominal level of 0 dBV. Balanced system
interconnection, using twin-and-screen microphone
cables is strongly recommended.
Wire the audio connectors as follows:
* Typical colours, may vary with cable make and type.
1.
3.
2.
2.
1.
PIN CONNECT COLOUR
1 Screen Cable Screen
2 Hot (+) Red*
3 Cold (-) Black*
Plugging in
Unplugging
1
2
3
3
2
1
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UniAmp Power Amplifier Module , Model 1214
4. PRESETS
NETWORK CONNECTIONS
Two latching 5-pin XLR connectors are fitted for
RS-485 network interconnections. A PC running
WinControl may be connected, via an appropriate
interface (either RS-232 to RS-485 or USB to RS-485) to
the Input connector, if control and monitoring during
operation are required. The Link connector (male) is
to facilitate easy connection to another WinControlsupported device (e.g. an adjacent enclosure).
The network connectors should be wired as follows:
See page 11 for information regarding suitable
network cable types. See Section 7 (Configuring with
WinControl) for more information about network
operation and software options.
The UniAmp 1214’s DSP section includes 8 Presets;
memory locations in which sets of configuration
parameters can be stored. These permit the
loudspeaker cabinet to be “fine-tuned” to suit
different types of programme material and venue.
When a settings file is loaded into the unit from a
PC, the user can specify in WinControl which Preset
memory it will be loaded into.
RECALLING PRESETS
The simplest method of recalling a previously-saved
Preset is via WinControl. This necessitates a network
connection to the loudspeaker system. Refer to the
WinControl Help files for further information.
If a network connection is not in place, or a PC with
WinControl is unavailable, Presets may be recalled
manually using the Reset & Preset Control button.
This button is hidden behind a small access hole on
the amplifier module’s conector panel, and can be
accessed with an implement such as a fine jewellers’
screwdriver or a straightened-out paper clip.
A single short press (< 1 sec) on this button will
increment the current Preset number, i.e. if the system
is currently running Preset 2, pressing the button will
load Preset 3. While the button is pressed, the Status
LED will change colour from green to red. Loading of
the next Preset is confirmed by the LED flashing the
appropriate number of times, i.e., it will flash 3 times
when Preset 3 is loaded. Using this method, repeated
button presses will load each Preset in turn.
Note that the amplifier module always
powers-up with the last-used Preset active.
Note also that a long (> 1 sec) button press
has a different function (see following page).
PIN # Function
1 Screen
2 Data Tx +
3 Data Tx -
4 Data Rx -
5 Data Rx +
1
2
3
4
5
5
4
3
2
1
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UniAmp Power Amplifier Module , Model 1214
One of the eight Preset memories acts as a “default”
memory, referred to as the “preferential preset” by
WinControl. Users are recommended to store a known
base configuration in this Preset, and to protect it via
WinControl. This Preset may be reloaded by a long
(> 1 sec) press on the Reset & Preset Control button.
Resetting the UniAmp 1214 may also be carried out
via WinControl; see the WinControl Help files for
more information.
6. OTHER
STATUS LED
The bi-colour Status LED has several functions:
1. To indicate that the unit’s power supply is
functional, the LED shows green for normal
operation. Note that the presence of mains voltage
is indicated by a neon lamp that is integrated into
the mains switch.
2. To indicate a fault state. The conditions for a fault
state are defined as part of the WinControl settings
file. If the conditions are met, the LED illuminates
red and an error indication is also communicated
via WinControl.
3. To confirm which Preset is being loaded (see
Recalling Presets, Section 4).
4. Unit identification: if the LED is set (in software)
to duplicate the functions of the LED on the front
of the enclosure*, it will also confirm unit identity
when requested by WinControl.
COOLING
The UniAmp 1214 depends on convection cooling. To
ensure trouble free operation of the unit you must:
1. Always ensure that the unit is installed in
compliance with the “Important Safety
Instructions” found in Section 1 of this document.
2. Always ensure that the ventilation openings
are not blocked or covered and are free
from obstruction.
3. Where possible avoid installing the unit in such
a way that the amplifier module is in direct sun
light. Failure to follow this advise might result in
a significant increase of chassis temperature and
may result in the amplifiers thermal protection
being activated.
5. RESET
This front LED is not supported on Flex range powered
loudspeaker models with early serial numbers. Please
contact your JBL Professional® dealer for more information.
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UniAmp Power Amplifier Module , Model 1214
Correct operation of a UniAmp 1214 module may be
confirmed using WinControl software.
A full description of WinControl is beyond the scope
of this manual and further information is available
in the application’s Help files. Instructions on how
to install WinControl on a PC are included with
the Program Set. Instructions on the use of the JBL
Professional
®
RS-485 interface are included with the
interface itself.
CONNECTING TO A PC
The PC connects to the amplifier module via an RS485 interface adapter. (Two versions of adapter are
available from JBL Professional, for connecting to PCs
either via a USB or an RS-232 port). Use either a 5-pin
XLR female to 5-pin XLR male cable or a 9-pin Dsub
to 5-pin XLR male. These cables (5 m in length) are
supplied with the WinControl Program Set, the type
depends on the RS-485 interface type. The RS-485
interface should then be connected to either the PC’s
9-pin COM port (in the case of a RS-232 to RS-485
interface) or a USB port (in the case of a USB to RS485 interface).
BASIC SOFTWARE OPTIONS
WinControl allows the various parameters of the
UniAmp’s DSP section to be set according to the
installer’s wishes. This enables the performance of
the loudspeaker enclosure to be accurately optimised
to suit both the venue and the type of programme
material being handled (speech, rock, opera, etc.)
The particular set of parameters which can be
adjusted via WinControl varies with loudspeaker
model. Typically, it includes delay, gain and multiband parametric EQ.
In addition to the parameters determining the audio
performance, the various Preset memories may
have alternative configurations stored in them, and
recalled as required. Unit monitoring may also be
configured, with the conditions for a fault state to be
signalled being registered. Additionally, units may be
‘grouped’ together in software, allowing very rapid
adjustment of multiple devices.
Full details of the options available within WinControl
are available in the application’s Help files.
7. CONFIGURING WITH WINCONTROL
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UniAmp Power Amplifier Module , Model 1214
NETWORK CABLES
The type of cable necessary for correct operation of
the RS-485 network is twin twisted pair with each
pair individually shielded. Numerous cables of this
type are readily available and cables broadly meeting
the specifications given below (which are those of a
common commercially-available cable) are likely to
be suitable.
Additional information regarding network
connections and grounding strategies may be
obtained at :
www.jblpro.com
SPECIFICATIONS
Please refer to the download section of our website
for product specifications.
8. APPENDIX
PARAMETER VALUE
Characteristic impedance 100 ohms
Capacitance (core to core) 41 pF/m
Capacitance (core to screen) 72.5 pF/m
DC resistance (core) 78.7 ohms/km
DC resistance (screen) 59.1 ohms/km
JBL Professional
8500 Balboa Boulevard
Northridge, CA 91329 U.S.A.
© Copyright 2014 JBL Professional
www.jblpro.com
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