Subzero SZPA-L68 User manual

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SZPA-L68
USER MANUAL

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Explanation of Graphical Symbols
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the user to the presence of uninsulated
‘dangerous voltage’ within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying
the product.
IMPORTANT SAFETY INSTRUCTIONS
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Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are
provided for safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete
outlet.
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Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the
apparatus.
Only use attachments/accessories specified by the
manufacturer.
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 tipping over.
Unplug this apparatus during lightning storms or when unused for long
periods of time.
Refer all 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.
PLEASE READ CAREFULLY BEFORE PROCEEDING
Please keep this manual in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, fire or other
hazards. These precautions include, but are not limited to, the following:
Power supply/Power cord
Water warning
•Only use the voltage specified as correct for the device. The required
voltage is printed on the name plate of the device.
•Do not expose the device to rain, use it near water or in damp or
wet conditions, or place containers on it containing liquids which
might spill into any openings.
•Use only the included power cord.
•Never insert or remove an electric plug with wet hands.
•Do not place the power cord near heat sources such as heaters or
radiators, do not excessively bend or otherwise damage the cord, place
heavy objects on it, or place it in a position where anyone could walk on,
trip over, or roll anything over it.
If you notice any abnormality
•If the power cord or plug becomes frayed or damaged, there is a
sudden loss of sound during use of the device, or any unusual smells
or smoke should appear, turn off the power switch, disconnect the
electric plug from the outlet immediately, and have the device
inspected by qualified service personnel.
Do not open
•Do not open the device or attempt to disassemble the internal parts or
modify them in any way. The device contains no user-serviceable parts. If
it should appear to be malfunctioning, discontinue use immediately and
have it inspected by qualified service personnel.
•If this device is dropped or damaged, immediately turn off the
power switch, disconnect the electric plug from the outlet, and have
the device inspected by qualified service personnel.
•Do not open the device or attempt to disassemble the internal parts or
modify them in any way. The device contains no user-serviceable parts. If
it should appear to be malfunctioning, discontinue use immediately and
have it inspected by qualified service personnel.
PRECAUTIONS
BEFORE OPENING PULL
MAIN PLUG
CAUTION VORSICHT
VOR DEM OFFNEN
NETZSTECKER ZIEHEN
CAUTION: TO REDUCE THE RISK OF FIRE REPLACE WITH ONLY SAME TYPE AND
RATING OF FUSE
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICS DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.

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WARNING
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage to the device or other
property. These precautions include, but are not limited to, the following:
Power supply/Power cord
Connections
•Remove the electric plug from the outlet when the devices is not to be
used for extend periods of time, or during electrical storms.
•Before connecting the device to other devices, turn off the power
for all devices. Before turning the power on or off for all devices, set
all volume levels to minimum.
When removing the electric plug from the device or an outlet, always hold
the plug itself and not the cord. Pulling by the cord can damage it.
For the SPEAKERS jacks, Use only the included speakers and speakers
cables. Use of other types of speakers and cables may result in
damage to the device(s), or even fire.
Location
Handling Precautions
When transporting or moving the device, always use two or more people.
Attempting to lift the device by yourself may damage your back, result in
other injury, or cause damage to the device itself.
Before moving the device, remove all connected cables.
When setting up the device, make sure that the AC outlet you are using is
easily accessible. If some trouble or malfunction occurs, immediately turn
off the power switch and disconnect the plug from the outlet.
Do not use the device in a confined, poorly ventilated location. Make sure
that there is adequate space between the mixer and surrounding walls or
other devices: at least 1’ ft. at the side, 1’ ft. behind and 1’ ft. above. If the
mixer is to be used installed into the speaker cabinet, make sure to allow
adequate space between the speaker and the surrounding walls or other
devices: at least 1’ ft. at the sides, 1’ ft. behind and 1’ ft. above.
Inadequate ventilation can result in overheating, possibly causing damage
to the device(s), or even fire.
Do not use the speaker’s handles for suspended installation. Doing so
could result in damage or personal injury.
Avoid setting all equalizer controls and faders to their maximum.
Depending on the condition of the connected devices, doing so may cause
feedback and may damage the speakers.
Do not expose the device to excessive dust or vibrations, or extreme cold
or heat (such as in direct sunlight, near a heater, or in a car during the day)
to prevent the possibility of panel disfiguration or damage to the internal
components.
Do not place the device in an unstable position where it might
accidentally fall over.
Do not block the vents. This mixer has ventilation holes at the top to
prevent the internal temperature from becoming too high. In particular,
do not place the device on its side or upside down. Inadequate ventilation
can result in overheating, possibly causing damage to the device(s), or
even fire.
Do not use the device in the vicinity of a TV, radio, stereo equipment,
mobile phone, or other electric devices. Doing so may result in noise, both
in the device itself and in the TV or radio next to it.
When turning on the AC power in your audio system, always turn on
the device LAST, to avoid speaker damage. When turning the power
off, the device should be turned off FIRST for the same reason.
Do not insert your fingers or hands in any gaps or openings on the
device (vents, ports, etc.).
Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.)
into any gaps or openings on the device (vents, ports, etc.). If this
happens, turn off the power immediately and unplug the power cord
from the AC outlet. Then have the device inspected by qualified
service personnel.
Do not use the device for a long period of time at a high or
uncomfortable volume level, since this can cause permanent hearing
loss. If you experience any hearing loss or ringing in the ears, consult
a physician immediately.
Do not operate the device if the sound is distorting. Prolonged use in
this condition could cause overheating and result in fire.
Do not rest your weight on the device or place heavy objects on it,
and avoid use excessive force on the buttons, switches or connectors.
Protective Circuit (poly switch)
All full-range loudspeakers are fitted with a self-resetting poly switch
that protects the high-frequency driver from damage caused by
excessive power. If a loudspeaker cabinet loses high-frequency
output, immediately remove power from the unit and wait for two to
three minutes. This should be long enough to allow the poly switch to
reset. Reapply power and check the performance of the high
frequency driver before continuing, with the power reduced to a level
that does not cause the poly switch to interrupt the signal.
Interference From Cell Phone
Using a cell phone near the speaker system can induce noise. If this
occurs, move the cell phone further away from the speaker system.
Air blowing out of the bass reflex ports is normal, and often occurs
when the speaker is handing program material with heavy bass
content.
Always turn the power off when the device is not in use. The
performance of components with moving contacts, such as switches,
volume controls, and connectors, deteriorates over time. Consult
qualified service personnel about replacing defective parts.
The manufacturer will not be responsible for damage caused by
improper use or modification to the device.
IMPORTANT
Please record the serial number of this unit in the space below.
Model: Serial
No.:
The serial number is located on the bottom or rear of the unit.
Retain this Owner’s Manual in a safe place for future reference.

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Product overview
The Subzero SZPA-L68 Compact Portable Line Array System is shipped in two cartons.
Carefully unpack the cartons and check that you have all the items listed on this page.
WARNING: To avoid danger of suffocation, keep the plastic bags out of the reach of children.
The Subzero SZPA-L68 Compact system consists of:
•Compact Power Stand
• Compact Extensions
The Subzero SZPA-L68 Compact system comes with a slipcover for the Power Stand and a padded carry bag for the Compact
Extensions.
Power stand carton
Extensions carton

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System configurations
You can set up the versatile Subzero SZPA-L68 Compact system in two unique positions. The examples below will help you quickly identify the
position that can work best for you.
Collapsed position
Extended position
Smaller audiences
• Intimate acoustic performances
• Music playback
• Presentations
• Speeches
Larger audiences
• Musical performances auditorium/coffeehouse
• DJ events
• Announcements larger spaces
The Compact Extensions are not required when using the Subzero SZPA-L68 Portable Line Array System in the collapsed
position. They are included for situations where you need to elevate the Loudspeaker Array to project sound to larger
audiences.

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Setting up the system
Before making any connections, you should set the Subzero SZPA-L68 Portable Line Array System up either in the collapsed position (the system is
shipped in the collapsed position) or the extended position.
Setting up in the collapsed position
To get the most sound quality and ensure that seated audience members enjoy the full frequency range of the system, position it on a table
(shown above) at ear-level or at the front edge of a stage (not shown). This will allow sound to project clearly and evenly throughout the audience.
Setting up in the extended position
In larger rooms, or with larger audiences where the sound could be blocked by obstacles, it is best to set up the Subzero SZPA-L68 Portable Line
Array System in the extended position.

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Specifications
Subzero SZPA-L68
Amplifier
Inputs
XLR/TRS combo jack
stereo RCA &1/8"AUX input
Outputs
XLR balanced line output
Power output
RMS 100w(sub)+100w(sat)
Volume
volume control each channel,2 band EQ
Power input
Features
100-240V ~50/60 Hz switchable
class D amplifier
and switching power design
power / clip indicator
Excellent compressor
Subwoofer
acitve vented subwoofer
Frequency response
55-200 Hz
Max output spl
114dB (at max amp output)
Driver
8'' subwoofer,1.5'' vc 33oZ (T1SW8)
Cabinet
PP plastic
Grill
1.0mm steel
Satellite
passive full-range speaker
Frequency response
180-20K Hz
Max output spl
114dB
Impedance
4 ohms
Driver
6*2.75'' full range line array
Cabinet
PP plastic
Grill
1.0mm steel
MEAS / G.W.
10.5*20*85.5CM/1PC/5KG(SAT) 52*41.5*52.5CM/1PC/14.5KG (SUB)

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CONTROLS AND FUNCTIONS:
1. Combo input: balance input, accepts “XLR\ 1/4"TRS” sockets
2. LINE/MIC selector
3. Input level control for CH1
4. Combo input: balance input, accepts “XLR\ 1/4"TRS” sockets
5. LINE/MIC selector
6. Input level control for CH2
7. RCA Iinput: RCA Stereo Input
8. 1/8" input: stereo unbalance signal
9. Input level control for CH3
10. Treble control: This potentiometer sets the HIGH TONE level, if rotated clockwise it enhances the highs, if rotated counter-clockwise it reduces the highs (in the
centre position the response is flat).
11. Bass control: This potentiometer sets the LOW TONE level: if rotated clockwise it enhances the lows, if rotated counter-clockwise it reduces the lows (in the centre
position the response is flat).
12. LINEOUT: XLR mixer output for NEXT PA system.
13. Power/Clip indicator –Displays the input signal status in color: Green: power ON, Red: Input signal clipping.
14. Power switch: This switch can be used to switch the diffuser on and off.
15. Fuse holder: Only replace the fuse when the device is disconnected from mains. Only use fuse of the same rating and power, the correct fuse is specified on the
rear panel.
16. Power input: Plug in the supplied power cable here.
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System Troubleshooting
Mixer and Amplifier Will Not Turn On
Is the included power cord correctly connected to a power outlet?
Amplifier Turns Off Suddenly
Is the vent on the top panel of the mixer blocked? Since inadequate ventage will cause the mixer to overheat, turn off the mixer and
uncover the vents to allow the mixer & amplifier to cool. After a few minutes, the mixer should reset itself and can return to normal
playback.
Is the POWER limiter flashing continuously? If the POWER limiter is flashing, the amplifier is being used beyond its design capabilities.
Turn off and on and resume playback.
No Sound From the Speaker(s)
Are external instruments (including a microphone) or speakers correctly connected to the mixer?
Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?
Are the SPEAKERS L/R jacks connected to the included speakers?
If there is still no sound, contact qualified service personnel.
Distortion or Noise in the Audio Signal
Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?
Are the MIC/LINE switches of each channels set appropriately?
Are both XLR type and phono type jacks on channels 1-4 being used (connected) at the same time?
XLR and phono inputs can not be used simultaneously.
Is the input signal from the connected device set to an appropriate level?
Output Level is Low
Are the LEVEL controls of all relevant channels and/or the MASTER LEVEL control set to appropriate levels?
Are the MIC/LINE switches of each channels set appropriately?
Are both XLR type and phone type jacks on channels 1-4 being used (connected) at the same time?
XLR and phono inputs can not be used simultaneously.
Is the input signal from the connected device set to an appropriate level?
Reverb and Echo Effects are not Apparent
Are the REVERB switches of each channels set to ON?
Are the two REVERB controls set to their maximum setting?
Sound Level is Powerful During Voice Announcements
Is the VOICE/MUSIC switch set to MUSIC（ ）?
Are the Equalizer controls (HIGH/LOW) set to appropriate level?
Sound Level is Low During Music Playback
Is the VOICE /MUSIC switch set to VOICE （）?
Sound Heard from Only One Speaker
Are the SPEAKERS L/R jacks connected to the included speakers and Mixer?
You can use only a single speaker by connecting it to the L or R speaker output. Stereo input signal will not be heard correct.
Connecting an Auxiliary Powered Speaker
Connect an auxiliary powered speaker to the MONITOR OUT jack. The MONITOR OUT signal bypasses the MASTER LEVEL control. Adjust the
level of the MONITOR OUT signal with the MONITOR OUT LEVEL control. If mono signal is desired, useonly the L MONITOR OUT jack. The
mixer will automatically mix the L and R input signals together.
If you have any other questions about this product, please contact the Gear4music hotline on 0330 365 4444, or at [e-mail]