Rane MA 4 Скачать руководство пользователя страница 2

ATTENTION: RISQUE DE CHOCS ELECTRIQUE - NE PAS OUVRIR

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

To reduce the risk of electrical shock, do not open the unit. No user 
serviceable parts inside. Refer servicing to qualified service personnel.

The symbols shown below are internationally accepted symbols 
that warn of potential hazards with electrical products.

This symbol indicates that a dangerous voltage 
constituting a risk of electric shock is present 
within this unit.

This symbol indicates that there are important 
operating and maintenance instructions in the 
literature accompanying this unit.

WARNING

IMPORTANT SAFETY 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 a dry cloth.
7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions. 
8. Do not install near any heat sources such as radiators, registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. 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 third prong is 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 and plug from being walked on or pinched particularly at plugs, convenience receptacles, and the point where it exits from 

the apparatus. 

11. Only use attachments and accessories specified by Rane.
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 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.

15. The plug on the power cord is the AC mains disconnect device and must remain readily operable. To completely disconnect this apparatus from 

the AC mains, disconnect the power supply cord plug from the AC receptacle.

16. This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
17. When permanently connected, an all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in the 

electrical installation of the building. 

18. If rackmounting, provide adequate ventilation. Equipment may be located above or below this apparatus, but some equipment (like large power 

amplifiers) may cause an unacceptable amount of hum or may generate too much heat and degrade the performance of this apparatus.

19. This apparatus may be installed in an industry standard equipment rack. Use screws through all mounting holes to provide the best support.

WARNING

: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Apparatus shall not be exposed to dripping 

or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.

NOTE

: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. 

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses 
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful 
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct 
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

CAUTION

: Changes or modifications not expressly approved by Rane Corporation could void the user's authority to operate the equipment.

CAN ICES-3 (B)/NMB-3(B)

WARNING

: This product may contain chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.

Содержание MA 4

Страница 1: ...e Audio Distribution Systems Sound System Interconnection Warranty Declaration of Conformity 21583 DIGITAL AMPLIFIER dB Headroom dB Headroom dB Headroom dB Headroom 3 6 12 24 Limit 1 Comp Exp Fault Lo...

Страница 2: ...he power cord is the AC mains disconnect device and must remain readily operable To completely disconnect this apparatus from the AC mains disconnect the power supply cord plug from the AC receptacle...

Страница 3: ...r le courant alternatif AC et doit absolument rester accessible Pour d connecter totalement l appareil du secteur d branchez le c ble d alimentation de la prise secteur 16 Cet appareil doit tre branch...

Страница 4: ...nd Load status are indicated for each channel Extra Credit For remote turn on fault reporting and back up amplifier operations and remote level control wiring see page Manual 4 For FAULT FLAG operatio...

Страница 5: ...or see metering indicates the load status The normal impedance range is 2 to 16 green Load indicator on Average load impedance is estimated over 180 ms and requires a minimum of 3 3 watts averaged ove...

Страница 6: ...t The front panel fault indicator is then lit The Slave channel remains in low power standby Ready indicator flashing until a fault is detected fault flag no longer driven high by the Master channel W...

Страница 7: ...r 10k to 100k may be connected to these inputs diagram at right MA 4 100 240V 50 60 Hz 500 WATTS RANE CORP Class 2 Wiring OUTPUTS Active Low Use Rane VR 2 or 20 k pot HIGH PASS 20Hz 40Hz 60Hz 80Hz ON...

Страница 8: ...0 40 60 80 Hz dipswitch select Load sensing 2 to 16 normal Green Load indicator on Low load detect Below 2 is low Green Load indicator flashing High load detect Above 16 is high Green Load indicator o...

Страница 9: ...s all channels Filters are 12 dB per octave Butterworth alignment 8 Each channel is set for MASTER or SLAVE operation Master channels write Fault Flag status Slave channels read Fault Flag status The...

Страница 10: ...L U A F D A O L Y D A E R P X E B d 3 B d 6 B d 2 1 B d 4 2 T I M I L P M O C T L U A F D A O L Y D A E R P X E 4 H C 3 H C 2 H C 1 H C P S D T S O H D N G Y T I V I T I S N E S 4 H C 3 H C 2 H C 1 H...

Страница 11: ...2 Z H 0 4 z H 0 6 z H 0 8 E D O M V 8 0 O T V 0 0 Y B D N A T S V 0 3 O T V 2 2 E T U M V 5 5 O T V 2 4 N O 1 M 2 M 3 M 4 M 1 M 2 M 3 M 4 M E S N E S Y L P P U S 5 2 R E T I M I L K A E P DETECT RMS...

Страница 12: ...selection of 20 40 60 or 80 Hz highpass 2nd order Butterworth filters Load sensitive limiter circuits shall prevent clipping and the associated loss of speech intelligibility A front panel LED shall i...

Страница 13: ...k connectors model KT 4 and individual transformers with mounting hardware model TF 4 are available separately allow ing the installer to build a tray with just the number of channels required see the...

Страница 14: ...5178 DOC 108152 Rane Corporation 10802 47th Ave W Mukilteo WA 98275 5000 USA TEL 425 355 6000 FAX 425 347 7757 WEB rane com Rubber washer Rubber washer KT 4 tray Mounting washer 10 washer Nut Screw 1...

Страница 15: ...1949 governing the interface between power amplifiers and loudspeakers used in distributed sound systems Installations em ploying ceiling mounted loudspeakers such as offices restaurants and schools...

Страница 16: ...as the constant voltage distribution method Early mention is found in Radio Engineering 3rd Ed McGraw Hill 1947 and it was standardized by the American Radio Manufacturer s Association as SE 101 A SE...

Страница 17: ...w different loudness levels in different coverage zones With this scheme the wire size is reduced considerably from that required in Fig ure 1 for the 70 7 volt connections Becoming more popular are v...

Страница 18: ...for so many watts output at 70 7 volts and a loud speaker is rated for so many watts input producing a certain SPL Designing a system becomes a relatively simple matter of selecting speakers that wil...

Страница 19: ...the first speaker where only 0 1414 amps are used to create the necessary 10 watts from here 14 00 amps flows on to the next speaker where another 0 1414 amps are used then 13 86 amps continues on to...

Страница 20: ...7V tapped secondary KT 4 Open 1U tray chassis with connectors mounts four TF 4 transformers Use MT 4 transformers with any standard power amplifier and any combination of constant voltage loads up to...

Страница 21: ...rconnections Grounding and EMC practices Shields of connectors in audio equipment containing active circuitry Rane s policy is to accommodate rather than dic tate However this document contains sugges...

Страница 22: ...al grounding system improperly thus creating balanced equipment that is not immune to the cabling s noise currents This is one reason for the bad reputation sometimes given to bal anced interconnect A...

Страница 23: ...n Figure 1b Recommmended practice CASE COMMON WRONG PRACTICE RECOMMENDED PRACTICE OPTIONAL CASE 1 2 3 3 1 2 CHASSIS GROUND SIGNAL GROUND CHASSIS GROUND CHASSIS GROUND Not using signal ground is the mo...

Страница 24: ...consistent success indicates this and other acceptable solutions to RF issues exist though the increasing use of digital and wireless technology greatly increases the possibility of future RF problem...

Страница 25: ...eferences 1 Neil A Muncy Noise Susceptibility in Analog and Digi tal Signal Processing Systems presented at the 97th AES Convention of Audio Engineering Society in San Fran cisco CA Nov 1994 2 Groundi...

Страница 26: ...20 24 24 19 18 17 B B B B A A A A A A FEMALE BALANCED XLR NOT A TRANSFORMER NOR A CROSS COUPLED OUTPUT STAGE FEMALE BALANCED XLR EITHER A TRANSFORMER OR A CROSS COUPLED OUTPUT STAGE BALANCED TRS NOT A...

Страница 27: ...RED SHIELD RED SHIELD SHIELD RED RED BLACK N C N C N C RED BLACK RED SHIELD N C BLACK RED BLACK RED 3 NC 2 RED 1 SHIELD 2 RED 1 SHIELD 3 BLACK 2 RED 1 NC 3 BLACK 2 RED 1 NC 3 BLACK 2 RED 1 SHIELD SHIE...

Страница 28: ...3 BLACK 2 RED 1 SHIELD 3 BLACK 2 RED 1 SHIELD 3 BLACK 2 RED 1 SHIELD SHIELD BLACK SHIELD RED BLACK SHIELD RED BLACK RED SHIELD SHIELD BLACK RED SHIELD BLACK RED SHIELD BLACK RED SHIELD BLACK RED SHIE...

Страница 29: ...WARRANTY SHALL BE THAT WHICH IS DESCRIBED TO THE ORIGINAL RETAIL PURCHASER BY THE AUTHORIZED RANE DEALER OR DISTRIBUTOR AT THE TIME OF PURCHASE Rane Corporation does not however warrant its products a...

Страница 30: ...FACTORY IN THE U S If the product is being sent to Rane for repair please call the factory for a Return Authorization number We recommend advance notice be given to the repair facility to avoid possi...

Страница 31: ...sponsibility of Rane Corporation Type of Equipment Professional Audio Signal Processing Brand Rane Model MA 4 Immunity Results THD N re 12 5W 8 400 Hz sine BW 20 20 kHz Baseline 72 dBr Test Descriptio...

Страница 32: ...2 1 FAULT Vr Vc Vr Vc Vr Vc Vr Vc 3 2 1 MASTER SLAVE COMP 4 3 2 1 1 2 3 4 Vr Vc Vr Vc Vr Vc Vr Vc INPUTS MODE 13 22 dBu SENSITIVITY 4 3 13 22 dBu SENSITIVITY 4 2 13 22 dBu SENSITIVITY 4 1 13 22 dBu S...

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