
L
OUROE
E
6955 VALJEAN AVE, VAN NUYS, CA 91406
LEC TRON ICS
PH: (818)994-6498 / FAX: (818)994-6458
sales@louroe.com / www.louroe.com
ASK-4 KIT #501
DESCRIPTION
The ASK-4 Kit #501 is a single zone audio monitoring
system with two-way listen and talkback. Remote unit
contains an omni-directional electret condenser, low
impedance microphone and a 4" speaker, all within one
housing. Desktop base unit produces live audio and
playback. Talkback from base unit to remote
speaker/microphone is actuated by engaging the “push to
talk” switch and speaking into the built-in microphone.
Person at the remote speaker/microphone can listen and
talk hands-free. Input/output to DVR/VCR for recording and
audio playback. Includes two back boxes for flush or
surface mounting.
AUDIO MONITORING SYSTEM
TECHNICAL DATA SHEET
SPEAKER/MICROPHONE
TLM Backbox (plastic)
TLM-W
for flush mounting to
wall or flat surface
TLM Backbox (metal)
for surface mounting to
wall or flat surface
AP-1TB
AUDIO BASE STATION
KIT CONTENTS
Model TLM-W Speaker/Microphone
Model AP-1TB Desktop Base Station
Model AD-3 24Vdc power transformer
Dual RCA cables for connection to DVR/VCR
APPLICATION
The ASK-4 Kit #501 can be used in situations such as:
Sleep Disorder Centers Convenience Stores
Therapy Labs
Classrooms
Heart Catheter Labs
Anywhere CCTV
cameras are installed
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 noti ce is incl uded w ith ea ch
microphone shipped.
Federal Law References:
Federal Regulations, US Code, Title 18.
Crime and Criminal Procedure, Sec 2510.
IMPORTANT NOTICE
Observation Rooms
Warehouses
Fast Food Restaurants
Company Training
Sessions
A
M
AUDIO
MONITORING
On
These Premises
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FEATURES
+
Two-way talk/listen system
+
Hands-free listen and talkback at remote
speaker/microphone location
+
Desktop base station with built-in microphone and
speaker
+
Input/output to DVR/VCR for recording and playback
+
Volume control for both listen and talkback
+
Speaker/microphone may be mounted up to 1000’ from
base station
+
Two back boxes - for flush or surface mount
WIRING REQUIREMENTS
4 Conductor consisting of:
+
2 Conductor shielded, 20 gauge
with 22 gauge drain (microphone
connection)
+
2 Conductor unshielded, 18 gauge
(speaker connection)
All in the same jacket
SPECIFICATIONS (Speaker/Mic - Model TLM-W)
Output Line level (0 dB @ 1KΩ)
Sensitivity (mic)
Frequency response (mic)
Current drain
Speaker
Power rating (speaker)
Face Plate Dimensions 6¼”H x 8”W
Backbox for TLM-W
Surface Mount Box (metal) 6¼"H x 8"W x 2¾”D
Flush Mount Box (plastic)
Backbox Portion 5"H x 6? "W x 2? ”D
Total including flange 6¼"H x 8"W x 2? ”D
-65 dB ± 4 dB
40 Hz to 15 kHz ± 1 dB
4 mA
4”, 8Ω w/ 70V transformer
4W
SPECIFICATIONS (Base Station - AP-1TB)
Input sensitivity
(from remote mic)
Monitor power output 1.5W @ 8
Talkback power output 1.5W into 70V line
Input sensitivity (talkback mic) -55 dB
Audio line output impedance
Audio input impedance 10k
Audio frequency response 100 Hz to 10kHz
Headphone impedance 8 to 600
Power input 24 Vdc, 1A or 24 Vdc, 1.5A
Dimensions
Shipping Weight 10 lbs (4.5 Kg)
0.78Vrms
600W or higher
8 x 10 x 2¼ H"W "D ”
ASK-4 KIT 501 6/08