Bell ZX406PA User manual
Operating Instructions
The perfect audio-distribution centre for:
schools
medical institutions
sports centres
factory buildings
shopping malls
meeting areas
clubs, bars & restaurants
ZX406PA
Integrated chime module
MP3 Player on board
®
Audio Systems
ZX406PA
Concept:
The ZX406PA will send audio signals,
such als speech, music or chime to 6
selectable zones.
The output power of 180W may
drive a number of 100V Line spea-
kers with a total min. impedance of
55,5Ω)
In low impedance mode, the mi-
nimum impedance is 4Ω.
Operational Features, Front
Volume, Mic 1,2,3,4
MIC 1 with Automute / Priority
Volume, Master
Volume AUX1 (MP3 player)
Volume AUX2 (CD, I-Pod etc.)
2-band EQ: Bass, Treble
Volume, Chime
Chime start switch
Extra front input Mic 1 (Jack)
MP 3 player with USB input
Mains switch
Master output control (bargraph)
2xRCA inputs for external audio sources
4 Mic Input channels with Gain-Control
48V phantom power supply on board
Rear Panel Features:
4 x mic input, XLR Combo
4 x mic gain control
4 x phantom power, 48V
2 x RCA input L/R, Aux1, Aux 2
1 x Remote start input (chime on)
1 x RCA preamp outpout
1 x RCA power amp input
Speaker output 180Watt 4Ω
Speaker output 100V, 6 zones min.
impedance = 55,5Ω
Measurements / Weight
ZX406PA: 19“
(W x H x D) 482 x 88 x 350mm
weight, net. 12Kg
BELL Loudspeaker Systems
Bell CPX Series, compact
100W - 8Ω / or 20-30-40W
100V line speaker systems.
Available in black or white.
CPX160.3, Ceiling speakers
including rear cover
100V line. 1-2-3W
BELL M Series, powerful high
quality speaker systems. Qualify
for in- and outdoors use. Available
in 8Ω, 16Ω or 100V Line. Special
colors on demand.
Bell OS 12 Omnisphere
patented 360°
speaker system. Available in 8Ω
oder100V Line.
Special colors on demand
Minimum Impedance 4Ω
Zone 4 Zone 5 Zone 6Zone 3Zone 2Zone 1
Minimum Impedance 55,5Ω
®
Audio Systems
ZX406PA Operating features, front panel
Volume, Mic 1,2,3,4
Volume controls of channels 1...4
Automute, MIC1 (switch)
When pushed, MIC1 (microphone) is
given priority over all other channels.
Volume, Master
Master volume control.
Volume AUX1 (MP3 Player)
Controls the volume of any signal source
connected to sockets AUX1 (RCA) such
as CD players, MP3 etc.
When the built-in MP3 player is in use,
AUX1 controls its volume.
Volume AUX2
Controls the volume of any signal source
connected to sockets AUX2 (RCA) such
as CD players, MP3 etc.
EQ: Bass, Treble
Active EQ / tone control. (+-15db)
Center position = neutral. Any manipu-
lation of the EQ controls should be done
with care. Extreme settings should be
avoided, since they will likely have a
negative inuence on the overall sound
quality.
Gong (Chime) Volume
Controls the output volume of the built-
in chime module.
Gong (Chime) Start
Activates the built-in chime module.
(May also be activated via jack socket
‚Chime Control‘ (rear panel)
MP 3 Player
Reads / plays MP3 data from any USB
Stick or SD card.
MAINS
Mains Switch to connect unit to current.
Master Output Control (bargraph)
Displays the total output level.
Features, rear panel
Mic channel inputs 1..4, XLR Combo
Input socket for microphones for use
with XLR plugs (3-pin, male), or 6,3mm
jack plugs.
Pin connection XLR, balanced:
1=Ground, 2=Hot, 3=Cold
Pin connection XLR, unbalanced:
1+3=N 2=L
to connect unbalanceds sources (mic)
with a 3-pin XLR(m) connector, insert a
wire bridge between pin1 and pin3 of the
incoming XLR plug.
Pin connection, Jack
balanced:
Housing=Ground, Ring=Cold, Head=Hot
Mono jack plug = unbalanced.
Mic Gain (Control 1..4)
matches connected sources (mics) to in-
mixing level. Turn clockwise to increase
input sensitivity. Turn counterclockwise
to reduce sensitivity.
Phantom Power Supply, 48V (CH 1..4)
Slide switch w/LED Indicator. Feeds
connected condenser microphones with
external 48V phantom power.
Aux1, Aux 2 L/R (Inputs RCA)
Connects audio sources (CD/MP3/etc.)
CHIME CTRL (remote trigger socket)
Connects external momentary-on switch
or clock device with momentary-on out-
put to start the built-in chime
Preamp RCA Output
Removing the wire bridge between PRE-
OUT and MAIN-IN (RCA socket), will cut
the connection bewteen mixer and po-
wer amplier. Serves to connect external
devices, such as graphic equalizers etc.
Power Amp Input (Amp IN) / (RCA)
After removing the wire bridge between
Preamp Out and Amp in, you may insert
an audio signal directly into the built in
power amplier. (Mostly used for testing
of power amp)
Loudspeaker connection
The clamp terminals will connect either
low impedance or high impedance (70V
or 100V line) loudspeakers.
A mixed connection of both types is not
possible and will cause serious damages.
Loudspeakers, low impedance
Clamp 4-16Ω = +
Klemme COM = -
(Total minimum Impedance: 4 Ω)
or
Loudspeakers, 100V Line
Clamp 100V = +
Clamp(s) COM = -
(Total minimum Impedance: 55,5 Ω
or
Loudspeakers, 70V Line
Clamp 70V = +
Clamp(s) Com = -
(Total minimum Impedance: 27,2 Ω
Zone Selection (100V Speakers only)
100V speaker systems may be installed
into max. 6 separate audio zones.
Connection of Zones (100V Line):
Zone 1: Z1=+, COM=-
Zone 2: Z2=+, COM=-
Zone 3: Z3=+, COM=-
Zone 4: Z4=+, COM=-
Zone 5: Z5=+, COM=-
Zone 6: Z6=+, COM=-
Each Zone may be switched on/off by
the front side Zone switches Z1...Z6
Warning:
The total minimum impedance of all con-
nected 100V line speakers is 55,5Ω.
Calculation of minimum impedance:
Example: speaker system 100V / 3W
calculation: (100x100) : 3 = 3333W
The min. impedance will allow the use of
3333:55,5 speakers. (= 60pcs.) The-
se (or less units) may be connected to
all 6 or less zones in equal or unequal
numbers.
Installation into a 19“ Rack
The ZX406 PA may be installed into a
19“ rack (min. 2 units).
Adequate, ventilation of rear and side
panels must be provided.
(Avoid overheating of unit).
Mains socket / mains cable
Mains connection by supplied mains
cable. 230V/AC. Unit must be earthed.
The fuse holder is integrated in the lower
part of the mains socket.
Fuse: 230V/2A.
SAFETY INSTRUCTIONS
In order to avoid damage to hardware or electronic components, during unit use and/or maintenance, It
is necessary to follow the safety instructions.
Prior to installing the unit, please read this manual carefully. Follow all instructions and keep it for further
reference.
Manipulating or opening the unit may cause damage to people. -Place the unit in a location protected
from weather and in a good distance from water and moisture. -Don‘t expose the unit to sources of heat,
such as radiators, spotslamps, hot power ampliers etc.. -Avoid any kind of liquid entering inside the
unit. -Connect the unit to a power supply line able to support the units power consumption. The power
supply line must be in good operating conditions. The power supply line must have an efcient ground
line. -Disconnect the unit from a.c. power socket during thunderstorm (lightning) or when out of use for
long periods of time.
Leave any servicing to qualied service personnel only. Servicing is required when the apparatus has
been damaged in any way, such as: -Defective connectors -Liquid has spilled inside the unit. -The unit
has been dropped or has been mechanically or electrically damaged or if the personal password of the
user has been forgotten.
No user-serviceable parts inside. For service, refer to an authorized maintenance.
The ZX406PA mixer amplier complys with EMC Directive 89/336/CEE (Directive on approximation of
member nation‘s ordinance concerning the electromagnetic compatibility) and following modications
92/31/CEE and 93/68/CEE, as stated in EN 500821:1997, EN 55013:1990, EN 55020:1994 standards.
The unit complys to Low Voltage Directive 73/23/EEC (Directive on approximation of member nation‘s
ordinance concerning electric equipment designed to be used within the specied voltage range), and
following modications 93/68/CEE, as stated in EN 60065:1998 standard. To avoid electric shock don‘t
open this unit. To prevent risks of re and/or electric shock, don‘t expose this unit to rain or moisture.
PACKAGING
This unit package has been submitted to ISTA 1A integrity tests. We suggest you check the unit immedi-
ately after unpacking it. If any damage is found, immediately inform the dealer. Keep all unit packaging
parts to allow inspection. Our company is not liable for any damage that occurs during shipment.
SHIPMENT / TRANSPORT LOSS OR DAMAGE
Products are sold and shipped ex warehouse and the shipment is at charge and risk of the buyer. Possib-
le damages to the unit should be immediately notied to the forwarder.
WARRANTY AND PRODUCT RETURN
BELL Audio Systems warrants all materials, workmanship and proper operation of this product for a peri-
od of two years from the original date of purchase. If any defects are found in the materials or workman-
ship or if the product fails to function properly during the applicable warranty period, the owner should
inform the dealer or the distributor, providing receipt or invoice of date of purchase and a detailed de-
scription of the defect(s). This warranty does not extend to damage resulting from improper installation,
misuse, neglect or abuse. BELL will verify damage on returned units. If the unit has been properly used
and warranty is still valid, the unit will be replaced or repaired. Our company is not responsible for any
„direct damage“ or „indirect damage“ caused by any defective product.
INSTALLATION
Product should be installed abd operated in a professional 19“ standard rack with adequate ventilation.
DISCLAIMER
BELL products have been expressly designed for audio application, with signals in audio range
(20Hz to 20kHz). Our company is not liable for damages caused by lack of mainte-
nance, modication, improper use or improper installation or by ignoring safety instruc-
tions.
BELL reserves the right to change technical specications at any time without notice.
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