Clever Acoustics MA 240Z5 User Manual - User Manual

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USER MANUAL

MA 240Z5 100V 240W 5 Zone

Mixer Amplifier

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 modifications to this equipment are not

subject to warranty.

IMPORTANT:

The manufacturer will not accept liability for any resulting damages caused

by the non-observance of this manual or any unauthorised modification 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 flammable 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 qualified engineer inspect the equipment before operating again.

• If the equipment has been exposed to drastic temperature fluctuation (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 qualified

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 amplifier was designed specifically for use in permanent audio

installations, where reliability and premium sound quality are a must. Highly rugged

construction and high efficiency design make this amplifier perfect for continuous duty

applications in situations were power will be left on for indefinite periods of time.

This 100V line amplifier is warranted from defects for one year from the date of purchase.

Should your amplifier 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 specifications, which

are detailed over the next pages. Please take the time to read this document completely

prior to installation of this product.

The Mixer Amplifier series is equipped with priority function. They are designed to suit all PA

system application in schools, offices and stores.

Features

• 5 Zone Mixer amplifier 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.

Specifications

MA 240Z5

Power output:

240Wrms / 255Wpeak

(total output across all zones)

Microphone inputs:

Sensitivity:

2.45mV / 5k

Ω

BAL / 245mV / 5k

Ω

S/N ratio:

>55dB

Frequency response:

100Hz-15kHz (

3dB)

Phantom power:

+48V DC

Line inputs (1 - 2 in @ 1kHz):

Sensitivity:

250mV / 47k

Ω

Tone Control (Bass: 100Hz, Treble: 100Hz):

12dB

S/N ratio:

>65dB

Frequency response:

80Hz-15kHz

Tel input:

Sensitivity:

0.3V/10k

Ω

S/N ratio:

>65dB

Frequency response:

100Hz-15kHz (

3dB)

Outputs:

Per amp out (MIC 1-4, LINE 1-2, TEL IN, REMOTE IN): 0dbV / 600

Ω

Remote mic (PM 100):

30mV / 600

Ω

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

Identification:

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 flash 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

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 amplifier into the rack, please make sure

that there is enough space around the amplifier.

Be careful when mounting the amplifier into the rack. Put the heaviest products into the lower

part of the rack. Be aware that fastening the amplifier 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 amplifier supplies a clear sound reproduction. Unnecessarily long

and thin cables used for low impedance (4-16Ω) speakers will influence 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 configuration:

32. Speaker terminals

- For 100V, 70V, 4Ω, 8Ω, chime and active speakers connections

Pin 1: Remote amplifier input signal hot (+)
Pin 2: Remote amplifier 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

Connections To The Mains

Before connecting the amplifier 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 amplifier 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

amplifier ON. The last product to be switched on is the amplifier.

If you wish to power off the system, turn the amplifier’s master volume control counter clockwise

to the “min” position before switching the amplifier 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 amplifier, 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 amplifiers all feature output VU meter’s with CLIP indication. Should the

CLIP indicator illuminate (flashing) the output of the amplifier is too high, turn the master volume

anti-clockwise to reduce the output.

4. The Clever Acoustics amplifiers all feature protection with LED indication. Should the

PROTECT indicator illuminate, turn the master volume control anti-clockwise fully and switch off

the amplifier for 15 seconds as the amplifier 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

amplifier persists to enter PROTECT mode the amplifier 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 amplifier or amplifier load (ie Short Circuit).

5. Speaker & Amplifier 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.

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

PRIORITY

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 5

ZONE 4

ZONE 3

ZONE 2

ZONE 1

COM 100V

100V

70V

COM

BATTERY SUPPLY

24V

16A

MIC 1 MIC 2 MIC 3 MIC 4

TEL INPUT

Speaker connections:

Notes:

• Both the 4Ω, 8Ω, 70V and 100V terminals cannot be used at the same time.

• Impedances indicated in the figures represent the total speaker system (load) impedances.

Loads presented to the amplifier 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 amplifier

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)

Balanced XLR Jack Connection

Connection With The Mains

Connect the unit to the mains via the IEC mains

inlet using the 13A UK - IEC cord supplied.

The earth has to be connected.

Switch the unit on. After switching on the speaker system, wait 8 - 10 seconds before you turn the

volume control up in order to avoid speaker damage.

CAUTION!

Increase the level of each channel up to the point where the clip LEDs illuminate.

Always check the sound pressure level with a meter in order to keep to the legal threshold.

Cleaning

and

Maintenance

We recommend a frequent cleaning of the product. Please use a soft lint free and moistened

cloth. Never use alcohol or solvents.

There are no serviceable parts inside the product except for the fuse. Maintenance and service

operations are only to be carried out by authorised dealers.

Replacing the fuse

Only replace the fuse by a fuse of the same type and rating.

Before replacing the fuse, unplug the mains lead.

Should you need any spare parts, please use genuine parts.

Should you have any further questions, please contact your dealer.

CAUTION - DANGER TO LIFE

DISCONNECT FROM THE MAINS BEFORE

STARTING MAINTENANCE OPERATION

Problem Chart

CAUSE

The power cord is not connected

The power cord of the respective

product is not connected properly or

not at all.

The connection socket or the plug

is dirty.

The input signal is too strong

Load impedance is to low

REMEDY

Check the power cord and any
extension cables

Check the power cord and if the

plugs are properly connected with

the sockets.

Clean the socket and/or the plug.

Reduce the input signal via the

gain control.
Check load impedance vs amplifier

specification, reduce as required.

PROBLEM

No Power

No Sound

Noise

Distorted Sound

www.cleveracoustics.co.uk

Correct Disposal of this Product

(Waste Electrical & Electronic Equipment)

English

(Applicable in the European Union and other European countries with seperate

collection systems)

This marking shown on the product or its literature, indicates that it should not be

disposed with other household wastes at the end of its working life. To prevent possible

harm to the environment or human health from uncontrolled waste disposal, please

seperate this from other types of wastes and recycle it responsibly to promote the

sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or

their local government office, for details of where and how they can take this item for

environmentally safe recycling.

Business users should contact their supplier and check the terms and conditions of the

purchase contract. This product should not be mixed with other commercial wastes for

disposal.

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