TeachLogic QUANTUM II User manual

QUANTUM II
Infrared Sound Field System
User Guide

FORWARD
Congratulations on the purchase of your new QUANTUM II sound field system
produced by TeachLogic. Be assured that the Quantum has met all
manufacturers’ specifications and it will fulfill all your expectations. TeachLogic
incorporates state of the art technology, employs the most advanced
manufacturing methodology and uses only premium quality components to
assure you many years of reliable performance. Thank you for your confidence in
selecting TeachLogic products and we intend to support our products to your
complete satisfaction.
We hope you will take some time to review this manual to familiarize yourself with
the product features and help you understand its performance. We are confident
that the manual will help you gain the maximum use and benefit of the Quantum
II sound field system.
The manual provides a basic explanation on Infrared transmission and its
benefits. Then there are some guidelines to help with unit location and
installation instruction.
The manual continues with product description, followed by operational and use
instructions. The manual concludes with maintenance procedures and trouble
shooting analysis.
If you should encounter any difficulty or need further assistance, contact
TeachLogic customer service department.
Tel: [phone]
Email: [email protected]
Brian Van Waay
President

A Brief Explanation of Infrared
Infrared is a light ray that is below the visible light spectrum (you can’t see it),
just like the sound spectrum extends beyond your hearing ability. The same as;
infrared transmission is used in the remote control of your TV set. A beam of
infrared light is emitted by a Light Emitting Diode (LED) from the remote control
and it is detected by a receiving diode in your TV set. When you push a certain
command on your control, the internal electronics causes the infrared light to
flicker in a programmed sequential pattern (called modulating the light beam).
That pattern is detected by the receiving diode and is electronically decoded to
send a command to the TV set to perform the command you have programmed
into your TV set.
So how does this apply to the infrared communication system which you are
about to start using? Well, the body-pack transmitter or handheld microphone
has several Light Emitting Diodes (LED) that emit infrared light beams to a sensor
located on the top of your Quantum II (that dark shining trim atop the Quantum
II). Now, when you talk into the microphone, the internal electronics in the
handheld or body-pack transmitter causes the light beam to flicker at the same
sequence as your breath varies from your voice when you speak into the
microphone. That sequential signal is detected by the sensor and a coded
electronic signal is sent to the receiver in the Quantum II. The receiver decodes
the electronic signal and converts it into electronic signal. The signal is routed to
the amplifier. The amplifier strengthens (amplifies) the electronic signal and
makes it strong enough to cause the speaker to move back and forth at the same
variation as your breath varied into the microphone. Now the replicate of your
voice is reproduced by the speaker, creating an audible sound level so all can
hear with ease.
Due to the number and strength of the diodes in the transmitter and sensitivity of
the Quantum II sensor, the IR signal will bounce off of walls, ceiling and floor and
be received by the sensor without interruption. However, infrared will not
penetrate solid surfaces, therefore; transmission will not go outside of the room.
Some words of caution and limitations of infrared:
Be sure that the path of transmission between the emitter and sensor is not
obstructed.
Infrared will not work outdoors in sunlight
Dark soft surfaces do not reflect infrared very well and can cause some limitation
to distance of transmission (drop outs).
Rooms larger than 2500 Sq. Ft. or have high ceiling can begin to exceed the
ultimate performance of the Quantum II.
If you should experience drop outs in certain areas, you could install an
additional sensor (IWS-50) to extend the system performance.

ASSEMBLY and INSTALLATION
Installing the Quantum II
A. The Quantum II can be operated as a free stance system on a speaker
stand. To use in this mode of operation:
•Locate the system off to one side in the front of the room. Point the front
of the unit toward the center of the listening area. Find an AC outlet
and plug the system in.
•Side wall location is also acceptable. Locate unit on either side about ¼
from front of room. Point the front diagonally across the listening area.
Locate an AC outlet and plug it in.
Optional: Folding Tripod Stand SS-300
B. Mounting the Quantum II on the wall, please review the following guidelines.
1. Selecting the most appropriate location for the Quantum can be the most
challenging. Every room is a little different, but in general the most
functional location is installing it on the front wall off to one side or the
other approximately ⅓from either side wall.
An alternate choice would be on either side wall, located approximately ¼-
⅓the distance from the front of the room.
NOTE: Be conscious of an AC outlet requirement for power.
2. Once you’ve decided where to mount the Quantum II, hold the ‘U’ bracket
straight up and down against the wall with bottom of the bracket
approximately 5 -6 feet above the floor. Using a level to assure true vertical
orientation, mark the two mounting holes.
If installing onto a drywall, drill two ¼” holes and insert a molley bolt
provided. With a #2 Phillips head screwdriver, mount the wall bracket.
If installing into a wood or like material, use two sheet metal screws with
washers to mount the bracket to the wall.
For concrete wall, you’ll need to acquire and install a plastic insert for a # 8
sheet metal screw and install accordingly.
3. With the bracket mounted, route the plastic wire tie through the two tab
holes. Hold the power supply onto the two raised tabs with the AC plug end
toward the floor. With the power supply resting on the pegs, tighten the
wire tie thus securing the power supply to the bracket.
4. Insert the DC plug into the power input jack and place the Quantum II into
the bracket, secure each end with the ” bolt and washer provided.
5. Orient the Quantum with center pointing diagonally across the listening
area.
6. Plug the power cord into an AC outlet

THE QUANTUM II CONTROLS
•Channel A turns power “on/off” (red LED indicator) and adjusts the volume
of the IR microphone assigned to it. Normally the body-pack transmitter is
assigned to channel A. When the transmitter is turned “on” a green LED
will light, indicating that an IR signal is being received from the transmitter.
•Channel B also turns power “on/off” and adjusts the volume of the
microphone assigned to it. Normally the handheld microphone is assigned
to channel B. When the transmitter is turned “on” an amber LED will light
indicating an IR signal is being received from the transmitter.
•Tone control adjusts the tonal quality of the sound. You will feel a center
indent, turn CCW will boost the bass and turning CW will extenuate the
high frequencies.
•Line input jack (3.5mm) facilitates connecting the output of a DVD, Video
Projector, ipod, computer and amplifying its signal through the Quantum.
The volume can be controlled with the adjacent knob.
•Line output jack (3.5 mm) provides a composite line level output; it can be
used to connect to a personal FM assistive listening system or as an output
to a recording device. The small knob adjusts the output level to match
input of the device connected.
•External speaker output connector is located adjacent to the power plug.
An unpowered external speaker can be connected to the Quantum for
additional coverage. A companion unpowered Quantum would be the
speaker of choice.

Quantum Controls
1. Threaded insert for wall mount
bracket.
2. External sensor inputs.
3. Internal sensors.
4. Internal speaker.
5. Power switch & Channel A Control.
6. Power switch & Channel B Control.
7. Power indicator LED.
8. Infrared wireless transmission LED.
9. Tone control.
10. Line input volume control.
11. Line output gain control.

Sapphire (IRT-55)
The Sapphire’s vocal clarity is unsurpassed. Its high
level output is achieved by the unidirectional
(Cardioid) microphone and a unique free air
suspension system. With a built-in breath filter, the
Sapphire can function as a pass around hand mic.
The strategic alignment of the emitting diodes
assures reliable connectivity throughout the room
without static or drop out. With a tap on the power
button, the microphone is muted for private
conversation—tap again to restore to normal
operation. The auxiliary input allows wireless
playback of your iPod™ through the Sapphire. A three-position slide
switch provides selection of low, med, or high microphone sensitivity.
Crescent (IRT-30)
The Crescent is a lightweight
microphone/transmitter designed
to be worn under the chin
suspended by an adjustable
lanyard. The Crescent shape was
designed for efficient performance
and user comfort. The dual
internal microphones render
optimum voice pick up and quality reproduction. The Crescent
provides an auxiliary input (3.5mm) to accommodate the insertion of
an iPod™ or similar device for supplementary program material.
A soft touch mute button cuts the microphone “off” for private
conversation (the power LED will flash in the mute position). A
volume control allows adjustment of the microphone volume. The
external battery contacts accommodate the convenient use of a drop-
in charger.

Handheld Microphone Transmitter (IRH-35) is most
applicable for student use or direct presentation. It has
an “on/off” switch and a battery level indicator LED;
Green=useable charge, Red=low battery. The transmitter
has 10 emitting diodes around the bottom of the handle.
The metal housing provides low handling noise and insures
durable longevity.

You are now ready to test the system
To test the system, we are going to use a wireless body-pack transmitter
with microphone, handheld microphone and an auxiliary audio source
(DVD, CD Player, etc.)
Turn the Quantum “on”, using either large knob
•Red LED will light to indicate power
•Set the Ch. A and Ch. B controls to 12 0’clock
Handheld Microphone Transmitter and its Features
•Turn “on” the microphone with slide switch and observe the Green
LED (If Red, batteries will require a charge or be replaced)
•Observe the amber LED next to Ch. B volume control, it indicates
that an IR signal is being received from the microphone.
•If the Ch. A LED turns “on”, unscrew the bottom half of the handheld
and slide the channel selector switch to Ch. B.
•Speak into the microphone and adjust the volume using Ch. B
control on Quantum.
•While talking, venture around the room, you should experience 100%
reception throughout the area.
•Upon completion of test, put the microphone in the charger for
recharging
Check the Auxiliary Line Input
•Connect a DVD player, computer audio output, or iPod using a 3.5
mm patch cable to the line input.
Caution: Be sure you are connecting to a line level output
•With the quantum turned “on”, turn “on” or engage your auxiliary
source.
•Adjust the volume on the Quantum to about mid scale and then
adjust the output (if its not a fixed line output) of the auxiliary
source.
•Verify quality of sound and adjust to desired volume.
Line Output / Control
•The line output delivers a composite audio signal to be fed into
another device i.e. a recorder, iPod, or the input of an assisted
listening system.
•The adjacent knob adjusts the level of the output signal.

Drop-in Battery Chargers
The battery chargers were specifically designed to recharge NiMH
batteries at an optimum rate to maximize their use. The chargers
feature a recycle function, which
is used to restore the battery
charge capacity and extend their
service life.
BRC-50 charger recharges the
Crescent (IRT-30) and Body-Pack
transmitter (IRB-30). You merely
place the Crescent or body-pack
in their respective slot.
Connection will be made and
charging will commence. Charger
will automatically control the rate
and maintain the charge.
BRC-55 This stylish desktop drop-in charging
station makes it convenient and easy to
recharge both Sapphire Pendant and Handheld
Microphones. Charge one IRH-35 handheld
transmitter and up to two IRT-55 Sapphire
transmitters simultaneously. Charging
indicator lights illuminate Red when charging,
and Green when fully charged. The “TL” logo
illuminates Blue when plugged in.

Trouble Shooting
•System does not work
oVerify AC power; the LED lights when turned “on”.
oSystem has power but no sound
Replace microphone.
Try with handheld microphone or microphone
Still inoperative and LED on Quantum is lit,
send Quantum in for evaluation.
•When using the microphone, the voice is distorted and /
or signal drop out occurs
oCheck the charge on your batteries
Recycle the batteries by placing the transmitter
in the charger and press the grey button and
hold for 3-5 seconds
The yellow LED will light and the charger will
automatically discharge the batteries and then
recharge to full charge. (Time required 4 -6
hours)
Recheck the system after cycling the batteries
If the problem persists, replace the batteries
•When plugging a CD player output into the auxiliary
input, I get distorted sound
oYou may have connected to the earphone output of
the CD player rather than the line level output and
its volume is too high.
oThe earphone output can be used but the volume
level of the CD player is very critical and must be
held to a very low level.

IRC-320 Quantum II General Specifications ________________________________
Receiver Input
Modulation
Reception Frequencies
Infrared
Wavelength
Tone Signal
De-emphasis
Frequency Response
S/N Ratio
THD
Nominal Deviation
Maximum Deviation
External Sensor Input
Connectivity Coverage
Line Input
Line Output
Equalization
Output Power
External Speaker Output
Connection
Power Supply
Dimensions
Weight
Infrared FM
FM Wide-band
Ch. A: 2.08 MHz
Ch. B: 2.54 MHz
850 nm
Ch. A: 32.768 KHz
50 µs
50 Hz, -15KHz, ± 3dB
›65 dB
‹1% @1KHz
± 10 KHz
± 25 KHz
Two, RCA
60 Ft. Line of Sight
3.5mm with Gain Control, Front
Panel
3.5mm with Gain Control, Front
Panel
Tone Control, ±6dB
30 Watts (RMS)
10 Watt / 4Ω
Two Terminal Phoenix Connector
15VDC / 2.3A / 34.5W
CE, CSA and UL Listed
6¼" W x 14" H x 4¾" D
4.2 lbs.

GENERAL TRANSMITTER SPECIFICATIONS
Transmission Carrier Infrared
Transmission Frequencies 2.08 MHz & 2.54 MHz
Channel Switchable A or B Field Switchable
Transmitting Diodes Ten
Modulation FM Wide-Band
Pilot Tone Frequency 32.768 KHz
Peak Deviation ± 25KHz
Operating Range 2500 Ft². 60 Ft.
Power Switch (Slide) On/Off
Battery Charge Level (LED) Green, (Useable Charge)
Red, (Needs Charging)
Battery Life Approx. 7 Hr./Charge
External Battery Contact Charger Connection
IRT-55 SAPPHIRE TRANSMITTER
Transmitting Diodes 6
Operating Range 1,500 Ft ². 60 Ft. Line of Sight
Battery Discharge Indicator
Blue Full
Purple Medium
Red Low
Flashing Red Very Low Battery
Battery Used Lithium-ion (3.7V / 620mAh)
Battery Life Approx. 8-9 Hrs/Charge
External Power Charger DC +5V, Micro USB Connector
Transmission Angle 180° Conical
User Controls
Power Switch (push) On/Off
Mute Switch (push) On/Off
Mic Switch (3 position) +6db, Normal, -3db
Aux. Vol./Gain Increase, Decrease
Channel Select (A or B) in battery compartment
External Aux. Input 3.5mm Stereo Line Level
Dimensions 3 ⅝” H x 1¼” W x ¾” D
Weight 1.4 oz. Including battery

IRH–30 HANDHELD TRANSMITTER
Compander Circuit Yes
Pre-emphasis 50µS
IR Emitter Location Built-in
Transmission Angle 360º
Current Consumption 330ma
Microphone Element Unidirectional, Dynamic
Battery Two Rechargeable NiMH, 1.2v / 2300mAH
Battery Life Approximately 6 Hours
Housing Aluminum
Dimensions 10” L x 1½” Dia.
Weight 11.4 oz. (with batteries)
IRT-30 CRESCENT TRANSMITTER
Shape Crescent, Under Chin
Lanyard Attachment Snap-In, Top (Safety)
Transmission Angle 180°, Conical
Emitting Diodes Six
Mute Switch Momentary, On/Off
Aux. Input (3.5mm) Switchable, Mic. or Line Level
Volume Control Thumb, Rotary
Two Microphone Elements Condenser Type, Unidirectional
Battery Single “AA” NiMH, Rechargeable
Power Consumption 300 [email protected]
Battery Life 6–7 Hours
Battery LED Green—Useable
Red—Needs Charging
Dimensions 4¾" W x 1" D x 1¾" H
Weight 3.0 oz. w/ Battery

BRC-50 DROP-IN BATTERY CHARGER
Charging Slots Two Handheld, Slots A & C
One Crescent, Slot B
One Body-Pack, Slot D
Charging Mode Switching
Charging Current 1700ma ±10%
Discharge Rate 350ma
Red LED Indicator Batteries being Charged
Green LED Indicator Batteries Fully Charged
Yellow LED Indicator Batteries being Discharged
Audible Alert Intermittent Buzz - Batteries Fully Charged
Recycle Button (Grey) Press for Full Discharge and Auto Recharge
Auto Switching Switch from Discharge to Charge Mode
Charging Time 1.5Hr./Slot
Power Supply 12VDC/1.5A (Fuse protected)
Dimensions 6½” L x 3 3/8” W x 1 1/8” H
Weight 12.2 oz.
BRC-55 Drop-In Battery Charger
Charging Ports
Red LED
Green LED
Power Supply
Dimensions
Weight
2 Sapphire, 1 Handheld
Battery being charged
Battery fully charged
5 VDC, 1 Amp
7 3/4" L x 2 3/4" W x 3 3/4" H
1 lb. 12 oz.

Five Year Limited Warranty
TeachLogic Infrared products are guaranteed to be free of defects in workmanship or
material for a period of five (5) years from date of original purchase, subject to the
following conditions:
1. Warranty excludes defects caused by normal use and wear, any abuse,
or failure to use the product in accordance per instructions.
2. Warranty is void if damage occurred because of misuse, or attempted
repair or modification by unauthorized personnel.
3. Warranty on batteries is two (2) years.
4. Warranty on microphones/microphone elements are limited to one (1) year.
5. Warranty does not extend to finish or appearance past ninety (90) days.
6. All warranty service will be provided by TeachLogic or authorized service
center
7. Warranty is made to the original purchaser and may not be transferred
another user.
8. Warranty service rendered will be on a repair basis or replacement, which
ever TeachLogic deems to be most prudent for customer satisfaction and
economic feasibility.
TeachLogic will only accept warranty shipments accompanied by Return
Authorization Number previously assigned by TeachLogic personnel. Advance
warranty replacements will be made per the discretion of TeachLogic personnel.
TeachLogic will pay return shipping cost on all warranty repairs or replacements.
For Warranty Service: TeachLogic, Inc.
Tel: [phone] or [phone]
Customer Service Department
1688 Ord Way
Oceanside, CA 92056