Louroe Electronics DA-4 User Manual

®

6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: [phone] / FAX: [phone]

/ [e-mail]

DA-4

AUDIO DISTRIBUTION AMPLIFIER

INSTALLATION AND OPERATING INSTRUCTIONS

MODEL DA-4

DESCRIPTION

The Model DA-4 is an Audio Distribution Amplifier with one audio input and four
audio outputs. It receives line level audio signals from a Louroe base station or
Louroe microphone and distributes it to up to four devices such as DVR’s, VCR’s,
CCTV monitors with amplifiers or other audio devices that accept line level input.
Each output of the DA-4 has a gain adjust potentiometer for correcting audio level.
Maximum gain is 15dB when potentiometer is fully engaged. Included with the
DA-4 are five RCA connector cables and a 12Vdc power supply.

AD-1 POWER SUPPLY

(5) SINGLE RCA CABLES

Contents Description

DA-1 Distribution Amplifier. Distributes 1 audio

input to 4 audio outputs. Usually connected
between a base station with single audio
output and 4 receiving devices.

U

AD-1 listed AC ADAPTER.

5 Single RCA Cables For connecting DA-4 to other devices.

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

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website: www.louroe.com e-mail: [e-mail]

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Supplies 12 Vdc to DA-1

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Description of Functions

INSTALLATION AND OPERATING INSTRUCTIONS

AUDIO INPUT

12 VDC POWER JACK

GAIN ADJUST FOR AUDIO OUT #1

AUDIO OUTPUT #1

GAIN ADJUST FOR AUDIO OUT #2

AUDIO OUTPUT #2

Fig. 1

Connecting a Louroe microphone directly to the DA-4

(Refer to figure 3, page 5 of this instruction)

All Louroe microphones contain a 3-pin terminal block marked A, B, C

A = +12Vdc power red wire
B = Audio Output black wire
C = Ground bare wire

Microphone’s current drain is 10mA.

GAIN ADJUST FOR AUDIO OUT #4

AUDIO OUTPUT #4

POWER LED

GAIN ADJUST FOR AUDIO OUT #3

AUDIO OUTPUT #3

IApplying Power to the Microphone

Apply 12Vdc power to terminals A and C. A is positive and C is negative

Microphone Connection to DA-4

a. Referring to the microphone 3-pin terminal block, connect a 22 gauge shielded cable to terminal B

and a ground wire to terminal C. (Terminal C is common for both 12Vdc power and audio output).

b. Run other end of cable to DA-4 and solder to an RCA plug. Wire from terminal B of microphone

goes to the tip of the RCA plug and ground wire goes to the sleeve.

c. Connect RCA plug to “Audio Input” RCA jack of DA-4

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

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website: www.louroe.com e-mail: [e-mail]

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INSTALLATION AND OPERATING INSTRUCTIONS

Connecting a Louroe Microphone to a Louroe Base Station and to DA-4

a. If microphone is to be first connected to a Louroe base station, follow the instructions that accompany

the specific base station (APR-1) for making wiring connections

b. For connecting base station to DA-4 use supplied RCA cable and go “Audio Out” (RCA) of base station

to “Audio Input” of DA-4

Connecting DA-4 to Audio Receiving Devices (DVR, VCR, CCTV Monitor)

a. The DA-4 has 4 RCA audio out jack. Using supplied RCA cables connect “Audio Output” of DA-4 to

Audio in (or line in) of the receiving devices.

NOTE: Should audio receiving device (DVR, PC

soundcard module, etc.) contain a

3.5mm audio input ( or line input).
Connect an RCA to 3.5mm adapter to the
RCA plug and insert. Check
specifications or DVR, etc. to determine if
audio input is mono or stereo.

b. Apply +12Vdc power to DA-4 using the 120V/12Vdc power supply (included). Connect small 90° plug

into the 12Vdc power jack located on DA-4. Connect the two-pin large plug to a standard 120 Vac wall
outlet or power strip. The green power LED will illuminate.

c. Each of the four audio outputs has a gain adjust potentiometer. Using a small screw driver, the desired

level of audio can be obtained by rotating clockwise to increase, or counterclockwise to decrease.

d. Microphone sensitive switch. Located on the backside of microphone is a sensitivity switch marked N

(normal) and L (low). If application requires less microphone sensitivity, move slide switch to “L”
position. This will lower the gain (-6dB output into 600W).

SPECIFICATIONS

Type of audio connections
Current drain
Maximum gain (per output)
Output
Power input 12 Vdc, 500mA
Dimensions

Weight

Shipping Weight

RCA
25 mA
+15dB
Line Level (0dBV, 1kW @ 1kHZ)

6 1/8”L x 4 5/8”W x 1 3/8”H

8 oz

2 lbs

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

website: www.louroe.com e-mail: [e-mail]

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INSTALLATION AND OPERATING INSTRUCTIONS

INTERCONNECTION DIAGRAM

LOUROE MICROPHONE TO APR-1 BASE STATION TO MODEL DA-4

DISTRIBUTION AMP AND TO 4 RECEIVING DEVICES (CCTV MONITORS, ETC.)

INDICATES AUDIO PATH

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

FIG 2

OUT IN

OUT IN

AUDIO

AUDIO

AD-1
+12 Vdc
POWER
SUPPLY

12 Vdc

GAIN ADJ 1 GAIN ADJ 2

GAIN ADJ 1 GAIN ADJ 2

AUDIO OUT 1

AUDIO OUT 2

L

E

OUROE

LECTRONICS

DISTRIBUTION AMPLIFIER

DA-4

LOUROE

MODEL DA-4

DISTRIBUTION AMP

LOUROE APR-1 BASE STATION

+12 Vdc INPUT OUTPUT

AUDIO IN

GAIN ADJ 4GAIN ADJ 3

AUDIO OUT 3 AUDIO OUT 4

AUDIO

M

E

A

D

S

U

N

I

RED

BLACK

VERIFACT A MICROPHONE SHOWN

MIC INPUT

BA C

A

VAN NUYS, CA

BARE

OUTIN

®

VE RIF ACT A

L N

A

RED

BLACK

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

AUDIO

OUTIN

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

AUDIO

A B C

N

L

BARE

WIRING REQUIREMENTS

2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire

NOTE: Unshielded cable is not

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

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website: www.louroe.com e-mail: [e-mail]

satisfactory for audio systems

West Penn 452 or equivalent

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INSTALLATION AND OPERATING INSTRUCTIONS

INTERCONNECTION DIAGRAM

LOUROE MICROPHONE DIRECTLY CONNECTED TO MODEL DA-4 DISTRIBUTION

AMP AND TO 4 RECEIVING DEVICES (CCTV MONITORS, ETC.)

INDICATES AUDIO PATH

FIG 3

VERIFACT D MICROPHONE SHOWN

®

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

OUT IN

AUDIO

OUT IN

AUDIO

AD-1
+12 Vdc
POWER
SUPPLY

12 Vdc

GAIN ADJ 1 GAIN ADJ 2

GAIN ADJ 1 GAIN ADJ 2

AUDIO OUT 1

AUDIO OUT 2

L

E

OUROE

LECTRONICS

DISTRIBUTION AMPLIFIER

DA-4

LOUROE

MODEL DA-4

DISTRIBUTION AMP

AUDIO IN

GAIN ADJ 4GAIN ADJ 3

AUDIO OUT 3 AUDIO OUT 4

AD-1
+12 Vdc
POWER
SUPPLY

B+ (A)

GROUND (C)

AUDIO (B)

AUDIO

AUDIO

OUTIN

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

OUTIN

TV MONITOR W/ AUDIO,

DVR, VCR, ETC.

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

(818)

website: www.louroe.com e-mail: [e-mail]

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INSTALLATION AND OPERATING INSTRUCTIONS

NOTES

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

website: www.louroe.com e-mail: [e-mail]

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INSTALLATION AND OPERATING INSTRUCTIONS

IMPORTANT NOTICE

When this equipment is used as part of an
audio monitoring system, the law requires
that the public be given notice of AUDIO
MONITORING ON THE PREMISES. A
deca l notice i s i ncluded with each
microphone shipped.

Federal Law References:
Federal Regulations, US Code, Title 18.
Crime and Criminal Procedure, Sec 2510.

LOUROE ELECTRONICS warrants that at the time of shipment products manufactured by LOUROE ELECTRONICS to be free of defects in material and workmanship.
Should a defect appear within one year (12 months) from date of shipment, LOUROE ELECTRONICS will, at its sole discretion, repair or replace the defective equipment.
This equipment shall not be accepted for repair or return without prior notification by LOUROE ELECTRONICS .

This warranty does not extend to any Louroe product that has been subjected to improper or incorrect installation, misuse, accident, or in violation of installation
instructions provided by LOUROE ELECTRONICS.

Returned shipments to LOUROE ELECTRONICS shall be at customer’s expense. LOUROE ELECTRONICS will return the equipment prepaid via best way.

®

®

®

WARRANTY

AUDIO

MONITORING

On

These Premises

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LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

(818)

website: www.louroe.com e-mail: [e-mail]

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MANUFACTURED

IN THE

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

website: www.louroe.com e-mail: [e-mail]

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