L

OUROE

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6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: (818)994-6498 / FAX: (818)994-6458 [email protected] / www.louroe.com

VERIFACT A

MICROPHONE

INSTALLATION AND OPERATING INSTRUCTIONS

DESCRIPTION

The Model Verifact A is an omni-directional, low impedance, electret condenser microphone with built-in preamp. It can pick up normal sounds approximately

15 ft. away, or within a 30 ft. diameter circle. Verifact A produces line level output (0 dB @ 1000 W ) and can be located up to 1,000’ from the Louroe base station. It is primarily designed for ceiling mounting but can also be installed on any type of flat surface. The Verifact A is compatible with all Louroe Audio Base Stations or

Louroe Audio Interface Adapters.

VERIFACT

A

Microphone

Microphone

Element

Housing and pre-amp NOTE:

Verifact A Microphone is NOT recommended for outdoor use or in areas with high moisture content.

SPECIFICATIONS

Type

Output

Sensitivity

(microphone & preamp)

Frequency response

Supply voltage

Current drain

Output impedance

Microphone housing

Dimensions

Weight

Electret Condenser

Line Level (0 dB @ 1000W)

80 dB SPL input provides 0.254V rms

40 Hz to 15 kHz ± 1 dB

12 Vdc

4 mA

600W unbalanced

High impact ABS

4” "

0.5 Lb (0.2 Kg)

WIRING REQUIREMENTS

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

NOTE: Unshielded cable is not satisfactory for audio systems.

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PAGE 1 OF 3

INSTALLATION AND OPERATING INSTRUCTIONS

ELECTRICAL CONNECTION:

The Model A is cylindrical, 4” dia. x 1½” H, and has four mounting holes for surface mounting to a ceiling or other flat surface. It should be positioned so that the microphone is 4’ to 8’ from the area of desired coverage.

MICROPHONE CONNECTION:

A 3-pin terminal block is located on the back of the microphone housing, marked A, B, C.

A represents +12 Vdc Power

B represents Audio Output

C represents Ground

If using West Penn 452 or equivalent with same color code, connect:

1. Red wire (12 Vdc) connects to terminal A of microphone terminal block

2. Black wire (audio out) connects to terminal B of microphone terminal block

3. Bare wire (ground) connects to terminal C of microphone terminal block

CONNECTING VERIFACT A MICROPHONE TO A LOUROE BASE STATION OR AUDIO INTERFACE

ADAPTER

All Louroe audio base stations (except the ALA-4/8 series) and Interface Adpaters have corresponding terminal blocks marked A, B, C. Connect other end of cable as follows:

1. Red wire from microphone connects to pin A of Base Station (12Vdc)

2. Black wire from microphone connects to pin B of Base Station (Audio Output)

3. Bare wire from microphone connects to pin C of Base Station (Ground)

If base station is ALA-4/8 series, please refer to installation instructions for the specific model.

CONNECTING VERIFACT A MICROPHONE TO OTHER AUDIO DEVICES.

If a Louroe audio base station is not used and microphone is being connected directly to another source from other manufacturers, 12 Vdc power must be applied to terminals A and C. (A is positive, C is negative). Terminals B and

C of microphone (C is common) go to the “Audio In” or “Line in” of the audio source. Wire from terminal B should be shielded.

INSTALLATION TIP: If area to be monitored for audio is noisy or has background disturbances, the microphone should be positioned close to the subject (4’ - 8’) if possible. Also, the microphone sensitivity switch can be moved from “N” position to “L” position to help reduce background noise. “N”is normal, “L” is low

INSTALLATION TIPS

1. Use overall shielded audio cable only. West Penn 452, Belden 8451 or equivalent.

UNSHIELDED CABLE IS NOT SATISFACTORY FOR SOUND SYSTEMS.

2. When used at a cash register checkout, microphone should be installed closer to the customer rather than the cash register, as the drawer sound could dominate the recording. It should be installed closest to the area to be monitored and documented.

3. Avoid installing microphone near air vents, air conditioners, fans and other equipment that generate high sound and air pressure.

4. If microphone is installed in a police interview room, room should be conditioned with any type of carpeting, acoustical ceiling tiles, acoustical foam, etc. to reduce echo. This will enhance the quality of live and recorded audio.

5. The APR-1 and microphone should have a barrier or solid wall between them in order to avoid audio feedback, especially when they are in close proximity to each other. If no barrier, microphone should be at least 25’ from

APR-1 to avoid acoustical feedback.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX (818)994-6458

Website: www.louroe.com Email [email protected]

A MIC 1/08

PAGE 3 OF 3

INSTALLATION AND OPERATING INSTRUCTIONS

MICROPHONE SENSITIVITY SWITCH

The microphone pre-amp (PC board) contains a sensitivity switch with two positions marked N and L, and is located on the back side of the Model A near the terminal block:

N represents normal sensitivity

(0 dB @ 1,000W)

L represents lower sensitivity

(-6 dB @ 1,000W)

Microphone is always shipped in the N position. For less microphone sensitivity, move slide switch to L position.

WIRING REQUIREMENTS

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

NOTE: Unshielded cable is not satisfactory for audio systems.

A = +12Vdc (RED)

B = Audio (BLACK)

C = Ground (BARE)

A B C

TO LOUROE BASE STATION

OR

TO OTHER LOUROE AUDIO RECORDING DEVICES

(IF-1, IF-2, IF-4, IF-8 ETC.)

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX (818)994-6458

Website: www.louroe.com Email [email protected]

PAGE 2 OF 3 A MIC 1/08

L

OUROE

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MANUFACTURED

IN THE

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 decal notice is included with each microphone shipped.

AUDIO

MONITORING

On

These Premises

OUROE

E

LECTRONIC S

Federal Law References:

Federal Regulations, US Code, Title 18.

Crime and Criminal Procedure, Sec 2510.

WARRANTY

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 with 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 subject 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.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX (818)994-6458

Website: www.louroe.com Email [email protected]

A MIC 1/08