TeachLogic IRF-3650 Forum Wireless System with Sapphire Microphone and 4 Lay-In Panel Speakers

TeachLogic IRF-3650 Forum Wireless System with Sapphire Microphone and 4 Lay-In Panel Speakers

TeachLogic IRF-3650 Forum Wireless System with Sapphire Microphone and 4 Lay-In Panel Speakers

B&H # TEIRF3650LS4 MFR # IRF-3650/LS4
TeachLogic IRF-3650 Forum Wireless System with Sapphire Microphone and 4 Lay-In Panel Speakers

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TeachLogic IRF-3650/LS4 overview

  • 1Description

This IRF-3650 Forum Wireless System by TeachLogic is a sound-field system for classroom presentation which consists of an IMA-320 receiver unit, an IRT-55 Sapphire microphone transmitter, four SP-628L lay-in panel speakers and an ICS-55 ceiling sensor for connectivity throughout the room. The receiver features a 50W digital hybrid class D amplifier, digital equalization, and 2 infrared microphone receivers designed to provide freedom of movement with constant connectivity in enclosed classrooms up to 1600ft² with ceiling heights 12' or less. The Forum has 2 separate front panel outputs for assistive listening and lesson capture. Also included in the system are a Lithium battery and a drop-in battery-charger for the Sapphire microphone.

  • IMA-320 Forum Amplifier / Receiver Base Station with Switching Power Supply

    The IMA-320 Forum Amplifier / Receiver Base Station with Switching Power Supply from TeachLogic is the nucleus of the Forum Wireless Classroom Microphone System. This receiver is designed for use with the Sapphire, Crescent, or handheld microphone transmitters (all sold separately). These transmitters transmit the vocal signal via infrared light to the dome sensor (sold separately) installed on the ceiling. The signal is then sent via cable to the receiver input of the mixer/amplifier. The signal is detected and then processed through the power amplifier to the speakers.

    The amplifier / receiver includes 2 infrared microphone channels, 2 auxiliary line inputs for computers and DVD/iPod units, and a 3-band equalizer. The two wireless microphone channels provide freedom of movement and permit hands-free performance. The two auxiliary inputs provide multimedia integration. The built-in power amp delivers 32W of power to a maximum of 4 speakers (sold separately). It has separate outputs for both assistive listening and recording with active boards.

    Two infrared wireless microphone receiver channels
    Two built-in power amplifiers; 18W each
    Two stereo auxiliary inputs for DVD & computer / Aux
    Additional DVD input gain, adjustable +10 dB boost
    Front-panel auxiliary input (3.5mm)
    Three-band digital equalizer ± 12 dB
    Front panel ALS output for assistive listening system with gain control (3.5mm)
    Front panel REC output for lesson capture with gain control (3.5mm)
    Light weight aluminum cover
  • Sapphire Transmitter with Microphone and Lithium-Ion Battery

    TeachLogic's Sapphire Transmitter with Microphone and Lithium-Ion Battery is a lightweight classroom microphone and comes with a rechargeable lithium-ion battery. It can be worn with a lanyard or clipped directly to your neckline collar. It has high level output, reliable connectivity and great definition. With a built-in breath filter, the Sapphire can function as a pass-around hand microphone. With a tap on the power button, the microphone mutes for private conversation-tap again to restore to normal operation. The auxiliary input allows wireless playback of your iPod. A three-position slide switch provides selection of low, medium, or high microphone volume levels.

    Long life lithium-ion battery
    Rechargeable via micro USB cable
    Battery level indicator, back light under power switch
    Momentary mute button, backlight blinks in mute mode
    Push "on/off" power
    Channel A or B selectable
    Three level microphone volume switch (low, medium, high)
    Auxiliary input (3.5mm)
    Low profile clip for mounting
    Wear with a lanyard or directly to neckline collar
  • Lay-In Ceiling Speaker

    TeachLogic's Lay-In Ceiling Speaker is a full range compact coaxial ceiling speaker that provides low distortion and a smooth natural frequency response ideal for articulate vocal clarity. Included is a 12" frame, a perforated steel grill, and an integrated steel back can and attached "T" bar for finished edge. It is a quick installation with minimal tile cutting.

    Complete speaker assembly (12 x 24")
    Perforated steel grill
    Heavy duty support for anti rattle or movement
    Attached adjoining T-bar
    Air sealed metal back can for an infinite baffle
    6.5" cone driver with a 1" Mylar dome tweeter
    Completely painted, tile white
    No speaker assembly required
    Quick and efficient installation
  • Infrared Dome Sensor

    TeachLogic's Infrared Dome Sensor needs to be installed on the ceiling at least 3' from the video projector. It comes with a mounting/support bracket and 50' of plenum rated cable with RCA connector on each end. The ideal location for the dome sensor would be in the center of the ceiling. This will provide a clear signal path for the IR transmission from the transmitter to the dome sensor without obstruction. In addition, you will have 360° coverage and will minimize the transmission distance for more reliable performance. It collects the infrared transmission signal via 6 large detecting diodes. The sensor is connected to the mixer/amplifier via a plenum rated cable terminated with RCA connectors. The mixer/amplifier supplies the power to the sensor.

    Easily installs on ceiling "T" bar with track bracket
    6 large receiving diodes for infrared reception
  • BRC-55 Drop-In Charger for Sapphire and IRH-35/40 Microphones/Transmitters

    TeachLogic's BRC-55 Drop-In Charger for Sapphire and IRH-35/40 Microphones/Transmitters is a drop-in charger for two TeachLogic Sapphire transmitters and one IRH-35 or IRH-40 handheld micrphone/transmitter.

In the Box
Bundle Items
  • Switching Power Supply
  • Limited 5-Year Warranty on Parts & Labor
  • Rechargeable Lithium-Ion Battery
  • Limited 5-Year Warranty
  • 50' 75Ω Dual-Shielded Plenum-Rated Cable
  • Limited 5-Year Warranty
  • Limited 5-Year Warranty
Table of Contents
  • 1Description
  • IMA-320 Forum Amplifier / Receiver Base Station with Switching Power Supply
    Input Receiver: Infrared FM
    Modulation FM wide-band
    Frequencies Reception:
    Channel A: 2.08 MHz
    Channel B: 2.54 MHz
    Infra-red Wavelength 850 nm
    Tone Signal Channel A: 32.768 kHz
    De-Emphasis 50 μs
    Frequency Response 40 Hz, -18 kHz, ±3 dB
    S/N Ratio >65 dB
    THD <1% @ 1 kHz
    Nominal Deviation ±10 kHz
    Maximum Deviation ±25 kHz
    Sensor Input External: 2 x RCA
    Connectivity Coverage: 2,500.0 sq ft. (232.3 m2)
    AUX Input One DVD, line level, dual RCA with +10 dB gain control, one Aux input with front and rear panel 3.5 mm
    Line Output Two 3.5 mm with gain control (front panel)
    Equalization 3-band digital ±12 dB
    Output Power Two Amplifiers:
    Each: 18 W RMS
    Total: 36 W RMS
    Output Impedance 4 Ω minimum per channel
    Output Connection One Phoenix connector
    Power Supply 12 VDC / 2.8 A / 42 W
    CE,CSA, and UL listed
    Dimensions (W x H x D) 8.50 x 1.75 x 7.50" (21.59 x 4.45 x 19.05 cm)
    Weight 1.50 lb (0.68 kg)
  • Sapphire Transmitter with Microphone and Lithium-Ion Battery
    Transmitter Carrier: Infrared
    Transmission Frequency 2.08 MHz and 2.54 MHz
    Channel Channel A or B, Field Switchable
    Transmitting Diodes 6
    Modulation FM Wide-Band
    Pilot Tone Frequency: 32.768 KHz
    Peak Deviation ± 25KHz
    Operating Range 60' (18.28 m) line of sight, 1,500 ft² (139.35 m²)
    Indicator Lights Blue: full
    Purple: medium
    Red: low
    Flashing red: very low battery
    Battery 3.7V, 620mAh Lithium-ion
    Battery Life Approximately 8-9 Hours
    External Power Charger: DC +5V, Micro USB Connector
    Transmission Angle 180° Conical
    User Controls Power switch (push): on/off
    Mute switch (push): on/off
    Microphone switch (3 position): + 6db, normal, - 3db
    Auxiliary volume/gain: increase, decrease
    Channel select: A or B, in battery compartment
    Auxiliary External Input: 0.13" (3.5 mm) stereo line level
    Dimensions 3 x 1.25 x 0.75" (7.62 x 3.17 x 1.9 cm)
    Weight 1.4 oz (39.68 g)
    Packaging Info
    Box Dimensions (LxWxH) 5.0 x 3.5 x 1.5"
  • Lay-In Ceiling Speaker
    Frequency Response 80 Hz to 15 kHz, ± 6dB
    Power 30 Watts Continuous
    Sensitivity 89dB SPL (1W/1M)
    Crossover Frequency 6 kHz
    Nominal Coverage Angle 90° x 90°
    Driver 6.5" (16.51 cm) Polymica/rubber
    1" (2.54 cm) high efficient domed tweeter, neodymium
    Enclosure Material Air sealed metal back can with infinite baffle
    Termination Screw terminals for secure speaker wire connection
    Mounting 12 x 24" (30.48 x 60.96 cm) lay-in speaker assembly
    Thickness Panel: 0.62" (1.57 cm)
    Dimensions 12.25 x 23.75 x 6.25" (31.11 x 60.32 x 15.87 cm)
    With T-Bar Support: 13 x 23.75 x 6.25" (33.02 x 60.32 x 15.87 cm)
    Weight 8 lbs (3.62 kg)
  • Infrared Dome Sensor
    Operating Frequencies 2.3 mHz to 2.8 mHz
    IR Receiver 6 large lens diodes
    Coverage 360°
    Range 40-50' (12.19-15.24 m) line of sight, 2500 ft2 (232.25 m2)
    Mounting Clip-on "T" bar bracket
    Connector Female RCA
    Indicator Lights Green LED for Power On
    Cable 75 ohm
    Cable Length 50' (15.24 m)
    Dimensions 4.62 x 1.37" (11.73 x 3.47 cm)
    Weight 0.46 lbs (0.2 kg)
  • BRC-55 Drop-In Charger for Sapphire and IRH-35/40 Microphones/Transmitters
    Compatibility Compatible with TeachLogic Sapphire and IRH-35/40 Microphones/Transmitters
    Power 110V
    Charging Time 10-12 Hours
    Indicator Lights Red: Charging
    Green: Charged
    Dimensions 7.75 x 2.75 x 3.75" (19.68 x 6.98 x 9.52 cm)
    Weight 1.75 lb (0.79 kg)

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