ASK-4®# 101-DV
AUDIO MONITORING SYSTEM
INSTALLATION AND OPERATING INSTRUCTIONS
6955
V
ALJEAN
A
VE.
V
AN
NUYS,
CA
91406
PH:
818-994-6489
|
F
AX:
818-994-6485
|
[email protected] |
WWW
.LOUROE.COM
SENSITIVITY SWITCH OF VERIFACT™ “DP” MICROPHONE
For special installations that require less microphone sensitivity or where there is
background noise, a sensitivity switch is mounted to the microphone pre-amp (PC
Board) and has two positions, N and L:
• N represents normal sensitivity (0dB ouput into 1kΩ)
• L represents low sensitivity (-6dB output into 1kΩ)
Louroe VERIFACT™ microphones are always shipped with the sensitivity switch
in normal (N) position. Do not change unless necessary. To change the sensitivity
setting, use a small screwdriver and move slide switch from N to L position. The
switch is mounted on the back side of the microphone housing.
NOTE:
REGARDING INTERFACING ASK-4 KIT #101 WITH A DVR OR PC SOUNDCARD
The APR-1 Audio Base Station of ASK-4 Kit #101 is compatible with all commercial
DVR’s and PC Soundcards that accept line level input (0dB@600Ω). An RCA cable is
included with the kit for connecting Audio Out to Audio In of DVR. If DVR’s audio input
is a 3.5mm jack, an RCA to 3.5mm adapter (not supplied) must be attached to the plug
that connects to DVR’s Audio Input. Check with DVR’s specications to determine if the
audio input requires a stereo or mono 3.5mm plug.
PC soundcards contain a standard 3.5mm stereo Audio Input or Line Input. Do not use
Mic Input of soundcard. Louroe microphones are line level (0dB@600Ω) and will over-
drive the Mic Input. Use “Audio Input” or Line Input” of the soundcard.
WIRING CONNECTIONS AND TEST
1. Starting with the microphone, connect RED wire to Pin A, BLACK
wire to Pin B and BARE wire to Pin C. Connect other end of ca-
ble to Terminal Block on back panel of APR-1 Base Station match-
ing RED wire to Pin A, BLACK wire to Pin B and BARE wire to Pin C.
2. Plug AD-1 power supply (AC Adapter) into the Power Jack[10] located on
back panel of APR-1 rst. Then connect 2- prong block into standard 110/120
AC wall receptacle or power strip.
3. Turn “ON” power to APR-1 by rotating the
Power-Volume
Knob[1] clock-
wise. The green PWR[2] LED will illuminate. Adjust volume of audio by rotat-
ing the knob either clockwise to increase or counterclockwise to decrease.
Locate microphone so as not to create feedback with the APR-1. The fur-
ther the microphone is from the APR-1 the less feedback it generates. Sys-
tem works best if there is an acoustical barrier between the microphone and
the APR-1, such as a wall or room divider. If there is no wall or barrier, mi-
crophone should be mounted at least 25 ft. from the APR-1 Base Station.
4. Plug headphone into the Headphone Jack[8]. Speaker[9] output is muted
and sound is transmitted through the headphone.
5. Using the dual RCA cable (supplied), connect DVR/VCR’s AUDIO OUT jack
to APR-1’s AUDIO IN
Jack[1
1]
.
6. Connect DVR/VCR’s AUDIO IN jack to APR-1’s AUDIO OUT
Jack[12]
7. Press “REC” on the recording device and record live audio for several minutes.
8. Press Push for Playback
Switch[7]
to “ON” position. Playback
Indicator
LED[4] will illuminate yellow.
9. Press “PLAY” on the DVR/VCR to playback recorded audio to the APR-1.
10. Press Mute
Switch[6]
to mute audio heard on the speaker. Mute
Indicator
LED[3] will light and no audio can be heard on the speaker on both live and
playback audio. When Mute
Switch[6]
is ON Playback
Indicator
LED[4] will
not light even when the Push for Playback
Switch[7]
is pushed in and the
audio is muted.
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 in cashier’s booth, microphone should be installed
closer to the customer rather than the cash register, as the draw-
er sound may dominate the recording. It should be installed clos-
est to the area that needs to be monitored and documented.
3. Avoid installing microphone near air vents, air conditioner, fans
and other equipment that generate high sound and air pressure.
4. If using a VCR, it may have both intermittent and constant speed
playback. See VCR’s manual on how to select constant speed.
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 up to 25’ (7.6 m).
SPECIFICATIONS
VERIFACT™ “DV” (LE-069)
Type Electrect Condenser
Output Line Level 0 dB @ 1KΩ, unbalanced
Frequency Response 40 Hz to 15 kHz ± 1 dB
Current Drain 4 mA
Supply voltage 12Vdc
Dimensions 4”Dia x 1 ½”H
APR-1 (LE-146)
Input sensitivity (mic) 0.78V
Monitor output power 1W@8Ω
Audio line output impedance 600Ω or higher
Audio input impedance 10K
Freq. response 100 Hz to 10 kHz
Headphone impedance 8 to 600Ω
Universal power supply 12 Vdc, 500 mA
Dimensions 8 ¼”L x 5 ¾”W x 1 ⅜”H
Weight (shipping) 1.5 lbs. (0.68)Kg
Page 3
6955
V
ALJEAN
A
VE.
V
AN
NUYS,
CA
91406
PH:
818-994-6489
|
F
AX:
818-994-6485
|
[email protected] |
WWW
.LOUROE.COM
