Rane MA 6 User Manual download pdf

Data Sheet-1

MA 4

MULTICHANNEL AMPLIFIER

Features

• Universal voltage, power-factor-corrected power supply

• Very low inrush current

• 100 watts x 4 channels in 1U chassis

• Built-in load monitoring

• Remote fault reporting and redundancy switching

• Optional 4 channel 70/100 volt transformers in 1U chassis

• Adjustable high-pass ﬁlters and remote level controllable

• Advanced dynamics control adjusts for sensitivity setting, load Z

and temperature

DIGITAL

AMPLIFIER

dB Headroom dB Headroom dB Headroom dB Headroom

Limit

Comp

Exp

Fault

Load

Ready

Limit

Comp

Exp

Fault

Load

Ready

Limit

Comp

Exp

Fault

Load

Ready

Limit

Comp

Exp

Fault

Load

Ready

MA 4

DATA SHEET

General Description

e 100 watt per channel, four-channel MA 4 ampliﬁer

achieves unparalleled power density, reliability and features in a

space saving 1U, 19 inch rack mount chassis weighing only eight

pounds (3.6 kg). A universal-voltage switching power supply

provides near perfect Power-Factor, reducing peak currents to

⅓ compared to non power-factor-corrected supplies. A long list

of unique features ranging from constant load power to built in

automatic redundancy switching to advanced dynamics control,

qualify the MA 4 for the most demanding ﬁxed installation

applications. e MA 4 excels in Music & Paging systems, small

conference rooms and speech reinforcement applications requir-

ing multiple ampliﬁers. Advanced dynamics control algorithms

adapt to changes in temperature, load impedance and sensitivity

setting. e result is a truly plug-and-play ampliﬁer that ensures

excellent signal integrity at all times.

MA 4

ACN 001 345 482

100-240V

500 WATTS 50/60 Hz

COMMERCIAL

AUDIO

EQUIPMENT

24TJ

LISTED

MADE IN U.S.A.

RANE CORP.

Class 2 Wiring

OUTPUTS

Active Low Use Rane VR 2 or 20 kΩ pot

HIGH-PASS

20Hz

40Hz

60Hz

80Hz

4+ – + – + – + – + – + – + – +

REMOTE LEVEL 4

4FLAG 3 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

+ – + – + – + –

INPUTSMODE

For continued

grounding

protection

do not remove

screw

dBu

SENSITIVITY

dBu

SENSITIVITY

dBu

SENSITIVITY

dBu

SENSITIVITY

EXP ON

INT EXT

LOAD

INT EXT

LOAD

INT EXT

LOAD

INT EXT

LOAD

4321

MT 4

MULTICHANNEL

TRANSFORMER

1234

MADE IN U.S.A.

RANE CORP.

MT 4

IN OUT

–

100V 70V COM

IN OUT

–

100V 70V COM

IN OUT

–

100V 70V COM

IN OUT

IN OUT IN OUT IN OUT IN OUT

–

100V 70V COM

+ –

100V 70V COM

+ –

100V 70V COM

+ –

100V 70V COM

+ –

100V 70V COM

Accessories

LEVEL

MT 4 Multichannel Transformer for 100V or 70.7V constant-voltage distribution. VR 2 Volume Remote can

control the level from

within each zone.

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - DATA SHEET

Data Sheet-1MA 4MULTICHANNEL AMPLIFIERFeatures• Universal voltage, power-factor-corrected power supply• Very low inrush current• 100 watts x 4 c

Page 2 - Conditions/Comments

Data Sheet-2MA 4MULTICHANNEL AMPLIFIERParameter SpeciﬁcationConditions/CommentsInput impedance 10 kΩ Each leg, diﬀerential, 1 kHzMaximum input +22 dBu

Page 3 - 1 2 4 6 9 0 q 5 7 8 3

Data Sheet-3MA 4MULTICHANNEL AMPLIFIERClass 2 Wiring OUTPUTS Active Low Use Rane VR 2 or 20 kΩ pot HIGH-PASS 20Hz 40Hz 60Hz 80Hz ON 4 + – + – +

Page 4 - Block Diagram

Data Sheet-4MA 4MULTICHANNEL AMPLIFIERPOWER-FACTOR-CORRECTIONSWITCH-MODEPOWER SUPPLYTUPNIGALF TLUAF1HC1EVALS/RETSAMBd 3Bd 6Bd 21Bd 42COMBINATION CONTR

Page 5 - Data Sheet-5

Data Sheet-5MA 4MULTICHANNEL AMPLIFIERPOWER-FACTOR-CORRECTIONSWITCH-MODEPOWER SUPPLYTUPNIGALF TLUAF1HC1EVALS/RETSAMBd 3Bd 6Bd 21Bd 42COMBINATION CONTR

Page 6 - Architectural Speciﬁcations

Data Sheet-6MA 4MULTICHANNEL AMPLIFIERPower-Factor-Correction (PFC)Near perfect Power-Factor with ⅓ the peak current and ½ the average current (green)

Page 7 - Basic Application

Data Sheet-7MA 4MULTICHANNEL AMPLIFIERMA 4ACN 001 345 482100-240V500 WATTS 50/60 HzCOMMERCIALAUDIOEQUIPMENT24TJLISTEDRCUSMADE IN U.S.A.RANE CORP.Class

Page 8 - References

Data Sheet-8MA 4MULTICHANNEL AMPLIFIERAll features & speciﬁcations subject to change without notice. DOC 108152©Rane Corporation 10802 47th