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WARRANTY PROCEDURE - Valid in USA only

NOTICE! You must complete and return the warranty card or register your 

product online to extend the Warranty from 2 years to 3 years!

TO VALIDATE YOUR EXTENDED WARRANTY: Use the postcard that came in the box with your unit, or go to 

www.rane.com

 and 

click on 

New Product Registration

. Fill out the warranty completely, being sure to include the model and serial number of the unit 

since this is how warranties are tracked. If your Rane product was purchased in the U.S.A., mail the completed card or register online 

with to Rane Corporation within 10 days from the date of purchase. 

If you purchased the product outside the U.S.A. you must file 

your warranty registration with the Rane Distributor in that country.

 It is advised that you keep your bill of sale as proof of purchase, 

should any difficulties arise concerning the registration of the warranty card. 

NOTICE:

 IT IS NOT NECESSARY TO REGISTER IN 

ORDER TO RECEIVE RANE CORPORATION’S STANDARD TWO YEAR LIMITED WARRANTY.

WARRANTY REGISTRATION is made and tracked by MODEL AND SERIAL NUMBERS ONLY, not by the purchaser’s or owner’s 

name. Therefore any warranty correspondence or inquires MUST include the model and serial number of the product in question. Be 

sure to fill in the model and serial number in the space provided below and keep this in a safe place for future reference.

WARRANTY SERVICE MUST BE PERFORMED ONLY BY AN AUTHORIZED RANE SERVICE FACILITY LOCATED IN 

THE COUNTRY WHERE THE UNIT WAS PURCHASED, OR (if product was purchased in the U.S.) AT THE RANE 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 possible needless shipment in case the problem can be solved over the phone. 

UNAUTHORIZED SERVICE PERFORMED ON ANY RANE PRODUCT WILL VOID ITS EXISTING FACTORY WARRANTY.

FACTORY SERVICE: If you wish your Rane product to be serviced at the factory, it must be shipped FULLY INSURED, IN THE 

ORIGINAL PACKING OR EQUIVALENT. This warranty will NOT cover repairs on products damaged through improper packaging. 

If possible, avoid sending products through the mail. Be sure to include in the package:

1.  Complete return street shipping address (P.O. Box numbers are NOT acceptable).

2.  A detailed description of any problems experienced, including the make and model numbers of any other system equipment.

3.  Remote power supply, if applicable.

Repaired products purchased in the U.S. will be returned prepaid freight via the same method they were sent to Rane. Products purchased 

in the U.S., but sent to the factory from outside the U.S. MUST include return freight funds, and the sender is fully responsible for all 

customs procedures, duties, tariffs and deposits.

In order to qualify for Rane’s one year extended warranty (for a total of 3 

years parts and labor), the warranty must be completely filled out and sent to 

us immediately. Valid in USA only.

We recommend you write your serial number here in your owners 

manual and on your sales receipt for your records.

SERIAL NUMBER:______________________________________PURCHASE DATE:_____________________________

©Rane Corporation  10802 47th Ave. W.,  Mukilteo WA 98275-5000  TEL 425-355-6000  FAX 425-347-7757  WEB www.rane.com

Warranty-2

Summary of Contents for MA 4

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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