Clever Acoustics MA 240Z5 User manual
USER MANUAL
MA 240Z5 100V 240W 5 Zone
Mixer Amplier
Order code: CRAM10
www.cleveracoustics.co.uk
WARNING
FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY
BEFORE YOUR INITIAL START-UP!
CAUTION!
Keep this equipment away from rain,
moisture and liquids.
SAFETY INSTRUCTIONS
Every person involved with the installation, operation & maintenance of this
equipment should:
- Be competent
- Follow the instructions of this manual
CAUTION! TAKE CARE USING THIS EQUIPMENT!
HIGH VOLTAGE-RISK OF ELECTRIC SHOCK!!
Before your initial start-up, please make sure that there is no damage caused during
transportation. Should there be any, consult your dealer and do not use the equipment.
To maintain the equipment in good working condition and to ensure safe operation, it is
necessary for the user to follow the safety instructions and warning notes written in this
manual.
Please note that damages caused by user modications to this equipment are not
subject to warranty.
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IMPORTANT:
The manufacturer will not accept liability for any resulting damages caused
by the non-observance of this manual or any unauthorised modication to the
equipment.
• Never let the power-cable come into contact with other cables. Handle the
power-cable and all mains voltage connections with particular caution!
• Never remove warning or informative labels from the equipment.
• Do not open the equipment and do not modify the equipment.
• Do not switch the equipment on and off in short intervals, as this will reduce the
system’s life.
• Only use the equipment indoors.
• Do not expose to ammable sources, liquids or gases.
• Do not carry the unit with only one handle. Always carry using both handles.
• Always disconnect the power from the mains when equipment is not in use or
before cleaning! Only handle the power-cable by the plug. Never pull out the plug
by pulling the power-cable.
• Make sure that the available voltage is between 220V-240V.
• Make sure that the power-cable is never crimped or damaged. Check the
equipment and the power-cable periodically.
• If the equipment is dropped or damaged, disconnect the mains power supply
immediately.
Have a qualied engineer inspect the equipment before operating again.
• If the equipment has been exposed to drastic temperature uctuation (e.g. after
transportation), do not switch it on immediately. The arising condensation might
damage the equipment. Leave the equipment switched off until it has reached
room temperature.
• If your product fails to function correctly, discontinue use immediately. Pack the
unit securely (preferably in the original packing material), and return it to your
Prolight dealer for service.
• Only use fuses of same type and rating.
• Repairs, servicing and power connection must only be carried out by a qualied
technician. THIS UNIT CONTAINS NO USER SERVICEABLE PARTS.
• WARRANTY; One year from date of purchase.
• If this equipment is operated in any other way, than those described in this
manual, the product may suffer damage and the warranty becomes void.
• Incorrect operation may lead to danger e.g.: short-circuit, burns, electric shocks.
• Do not endanger your own safety and the safety of others!
Incorrect installation or use can cause serious damage to people and property.
This 100V line mixer amplier was designed specically for use in permanent audio
installations, where reliability and premium sound quality are a must. Highly rugged
construction and high efciency design make this amplier perfect for continuous duty
applications in situations were power will be left on for indenite periods of time.
This 100V line amplier is warranted from defects for one year from the date of purchase.
Should your amplier require service, either within or beyond that warranty period, please
contact your Prolight Dealer.
This unit includes a host of features, along with an impressive list of specications, which
are detailed over the next pages. Please take the time to read this document completely
prior to installation of this product.
The Mixer Amplier series is equipped with priority function. They are designed to suit all PA
system application in schools, ofces and stores.
Features
• 5 Zone Mixer amplier for paging and background music system.
• 5 x 50W outputs each with separate 5-step volume controls (total 240W)
• Rated power: 240W
• Rack mountable chassis
• 70V, 100V and low impedance 4-8Ω loudspeaker output
• Four XLR microphone inputs with phantom power and gain control
• 2 dual RCA line inputs
• MIC 1 with selectable priority over other inputs
• Built-in chime, 2/4 tone selector
• Phono line output
• EMC input for emergency alarm
• Telephone input with separate volume control
• Master, MIC 1-4, line level volume, bass and treble control
• Optional DC input for use with battery backup power sources
• Fan cooled
Note: The multi-zone facility applies to paging and level control when using the 100V zone
outputs. The multi-zone facility cannot be used for low impedance, or for multi-zone audio
from the line inputs.
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Specications MA 240Z5
Power output: 240Wrms / 255Wpeak
(total output across all zones)
Microphone inputs:
Sensitivity: 2.45mV / 5kΩ BAL / 245mV / 5kΩ
S/N ratio: >55dB
Frequency response: 100Hz-15kHz (±3dB)
Phantom power: +48V DC
Line inputs (1 - 2 in @ 1kHz):
Sensitivity: 250mV / 47kΩ
Tone Control (Bass: 100Hz, Treble: 100Hz): ±12dB
S/N ratio: >65dB
Frequency response: 80Hz-15kHz
Tel input:
Sensitivity: 0.3V/10kΩ
S/N ratio: >65dB
Frequency response: 100Hz-15kHz (±3dB)
Outputs:
Per amp out (MIC 1-4, LINE 1-2, TEL IN, REMOTE IN): 0dbV / 600Ω
Remote mic (PM 100): 30mV / 600Ω
THD: <0.5%
Power consumption: 350W
DC power supply: 24V
Power supply: 240V-60Hz
Dimensions (H x W x D): 132 x 484 x 338mm
Weight: 20.15kg
Order code: CRAM10
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Identication:
1. Bass & Treble controls - Use to adjust the bass and treble response.
2. PROT LED - Protection indicator LED
3. Chime & siren LEDs
4. CLIP LED - This LED will ash when the output signal starts to distort
5. All call control - Press to page all zones
6. All call LED - When all call has been selected the LED will light up.
7. Zone selection LEDs - These LEDs will light up for which zone is selected
8. Zone selection buttons - Use these to select the zones
9. AC LED -This LED will light up when power is turned on and is used via the mains IEC socket
10. Power LED - This LED will light up once the amp is switched on
11. DC LED - This LED will light up when optional DC power supply is used
12. On/off power switch - Use the switch to power the unit on or off
13. Master volume control - Use this control to increase or decrease the master volume
15. Siren and chime selection buttons - Use these to select the siren and chime functions
16. Chime volume control - Use this control to increase or decrease the chime volume
17. Line & Mic volume controls - Use this control to increase or decrease the line and mic volume
18. Zone 1 - 5 Speaker outputs - Use this to connect the speakers to dedicated zones
19. Mains IEC power input socket - Use this to connect to the mains
20. Mic 1 priority selection button - When this button is selected, it will give priority to channel 1
over all other channels
21. Phantom 48V power switches - Use these switches to turn the Phantom +48V on and off for
each of the mic inputs
22. Optional DC power supply - Use this to connect to your optional DC 24V power supply
23. Combi XLR/6.35mm mono jack mic inputs sockets - Use these to connect the microphones
24. Line input sockets - Use these sockets to connect to your audio equipment
25. Line output socket - Use this socket to connect to your power amp or recording equipment
26. EMC input socket - Use this to connect to your emergency panel unit. When the EMC is
connected, the EMC has auto override over all other inputs
27. TEL input socket - Use this socket to connect to you telephone interface for paging and
announcements
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Rack Installation
The MA Series are rack mountable. The rack you use should be a double door rack where you
can open the front and rear panel. When mounting the amplier into the rack, please make sure
that there is enough space around the amplier.
Be careful when mounting the amplier into the rack. Put the heaviest products into the lower
part of the rack. Be aware that fastening the amplier with four screws on the front panel is not
enough.
Inputs
Short cables runs improve the sound quality remarkably. Input cables should be short and direct,
since high frequencies will mostly be absorbed if the cables are unnecessarily long. Besides that
a longer cable may lead to humming and noise problems. If the cable runs are unavoidable, you
should use balanced cables.
Outputs
The high damping factor of your amplier supplies a clear sound reproduction. Unnecessarily long
and thin cables used for low impedance (4-16Ω) speakers will inuence the damping factor and
thus the low frequencies in a negative way. In order to safeguard good sound quality, the damping
factor should lie around 50. The longer a cable has to be the thicker it should be. For longer cable
runs please ensure the 100V outputs are used for 100V speakers.
Connect your speaker systems via the speaker terminals (COM = -VE)
Examples: 1) COM + 4Ω
2) COM + 8Ω
3) COM + 70V
4) COM + 100V
Note: Please do not use more than one pair of output terminals
28. TEL audio volume - Use this control to increase or decrease the telephone volume
29. Chime tone selector - Use this to select the 2 tone or 4 tone options
30. Fan vent
31. PM 100 Mic input socket - Use this to connect the PM 100 Paging mic (sold separately)
Pin conguration:
32. Speaker terminals - For 100V, 70V, 4Ω, 8Ω, chime and active speakers connections
Pin 1: Remote amplier input signal hot (+)
Pin 2: Remote amplier input signal cold (-)
Pin 3: Signal ground
Pin 4: Remote control 1 (zone 1)
Pin 5: Remote control 2 (zone 2)
Pin 6: Remote control 3 (zone 3)
Pin 7: Remote control 4 (zone 4)
Pin 8: Remote control 5 (zone 5)
Pin 9: Remote control ground
Pin 10: DC +24V
Pin 11: Input chime
Pin 12, 13, 14, 15: Not used
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Connections To The Mains
Before connecting the amplier to the local mains voltage outlet should be checked to ensure the
available supply is 240V~AC 50Hz. This product is CLASS1 and requires a protective mains earth
to be connected at all times. DO NOT remove or disconnect the earth.
Power On/Off Procedure
After connecting your amplier to the mains, turn all controls counter clockwise to the “min”
position. Turn on audio sources (MP3 players, CD players, Microphones etc) before powering the
amplier ON. The last product to be switched on is the amplier.
If you wish to power off the system, turn the amplier’s master volume control counter clockwise
to the “min” position before switching the amplier OFF before any audio sources are switched off.
By following this procedure it will prevent acoustic shocks to the speakers or potential damage to
system components.
Machine operation
1. After connecting all audio sources and powering on the mixer amplier, adjust the level of each
audio input to achieve the desired “mix”. Care should be taken to when adjusting microphone
input volumes and the master volume, adjust both of these in small increment’s to avoid feedback
(howl around). The goal is to achieve a clear balance between music and voice ensuring
announcements can be clearly heard.
2. Microphone input No.1 features selectable voice operated override (VOX), this will mute all
other inputs. After 3 seconds of no signal to the MIC1 input the other inputs will return to their
original state. The VOX level can be adjusted on the rear panel.
3. The Clever Acoustics ampliers all feature output VU meter’s with CLIP indication. Should the
CLIP indicator illuminate (ashing) the output of the amplier is too high, turn the master volume
anti-clockwise to reduce the output.
4. The Clever Acoustics ampliers all feature protection with LED indication. Should the
PROTECT indicator illuminate, turn the master volume control anti-clockwise fully and switch off
the amplier for 15 seconds as the amplier may have entered PROTECT mode temporarily due
to a peak signal, care should then be taken to ensure all input levels are set correctly. If the
amplier persists to enter PROTECT mode the amplier should be switched off and left to cool
for 5-10 minutes before switching back on. If the PROTECT indicator remains lit this indicates a
problem with the amplier or amplier load (ie Short Circuit).
5. Speaker & Amplier systems can produce high sound pressure levels, please operate all
controls with caution to ensure people are not exposed to excessive or dangerous sound pressure
levels.
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Panel Connections:
MAINS
PM 100 (CRMIC01)
24V DC INPUT
(Optional)
OTHER AMPLIFIER
AUDIO EQUIPMENT
EMERGENCY PANEL
TELEPHONE INTERFACE
XLR BAL
1-GND
2-HOT+
3-COLD-
CHIME ACTIVE
+48V PHANTOM
ON OFF ON OFF ON OFF ON OFFPRIORITY
MIC 1
GAIN
CHIME
2 TONE 4 TONE
REMOTE MIC
240V 50Hz
T6.3AL 250V
MIC 2
GAIN
+48V PHANTOM
MIC 3
GAIN
+48V PHANTOM
MIC 4
GAIN
+48V PHANTOM
TEL
VOLUME
INPUT
LINE 1
OUT
LINE 2 LINE
TEL
EMC
INPUT
OUTPUT
ZONE 5ZONE 4ZONE 3ZONE 2ZONE 1
COM 100V COM 100V COM 100V COM 100V COM 100V 100V
48Ω70V
COM
BATTERY SUPPLY
24V 16A
MIC 1 MIC 2 MIC 3 MIC 4
TEL INPUT
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Speaker connections:
Notes:
• Both the 4Ω, 8Ω, 70V and 100V terminals cannot be used at the same time.
• Impedances indicated in the gures represent the total speaker system (load) impedances.
Loads presented to the amplier must be equal to or greater than listed above. Speaker
impedances must be measured using a true impedance meter, do not standard multimeters.
WARNING!
Be sure to attach the supplied terminal cover attached after con-
nection. Because high voltage is applied to the speaker terminals,
car should be taken never touch these terminals to avoid
electric shock.
All speaker connections should be made using bare wire or suitable
insulated crimp terminals. Please ensure no loose strands are present
as these may short across terminals causing damage to the amplier
Total impedance
160Ω
Total impedance
160Ω
TOTAL LOAD OF SPEAKERS CONNECTED
ACROSS ALL ZONES PLUS SPEAKERS
CONNECTED TO THE MAIN OUTPUTS
MUST NOT EXCEED 240W (208.3Ω)
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