TeachLogic The IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System

BH #TEIRF2150LS4 • MFR #IRF-2150/LS4
TeachLogic The IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System
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Expected availability: 3-7 business days
$127/mo. suggested payments
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TeachLogic IRF-2150 Overview

The TeachLogic IRF-2150 LS-4 Forum 232 Sapphire Classroom Sound System is a 2-channel infrared sound field (with Security Alert) sound presentation system. It includes the IMA-232 Base 50-watt amplifier/mixer which features an automatic energy saving "sleep" mode, and two wireless microphone channels/receivers which provide more freedom and permits hands free performance. Two auxiliary line inputs provide multimedia integration with distribution of sound throughout the entire classroom. The system features two separate outputs for assistive listening and affords recording options with active boards.

The Forum 232 incorporates the Digital Feedback Guard (DFG), a 3-band equalizer, digital limiting, and RS-232 connection for control the panel (IMA-232). Additionally it features two infrared wireless microphone receivers and two 25 watt RMS power amps for a total of 50 watts of class D amplification.

The Sapphire microphone is a classroom microphone, and with its diminutive size, is hardly noticeable to wear. It can be worn with a lanyard or clipped directly to a neckline collar. The Sapphire has high level output, and is constructed to have stable connectivity and elicit exacting vocal definition. With a built-in breath filter, the Sapphire can function as a pass-around hand mic.

A unique Sapphire feature is that with a tap on the power button, the mic mutes for private conversation - tap again to restore to normal operation. Additionally, the auxiliary input allows wireless playback of your iPod through the Sapphire. The mic is built with a three-position slide switch for selecting low, medium, or high microphone volume levels.

For the IRF-2150 system, the ICS-55 comes standard as it was deemed the preferred infrared sensor by TeachLogic for optimum performance. This unit needs to be installed on the ceiling at least 3 feet from the video projector. It comes with a mounting/support bracket and 50 feet of plenum rated cable with an 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.

The four included SP-628L's are full range compact coaxial ceiling speakers, providing low distortion and full range frequency response for articulate vocal clarity. The SP-628L is a complete loudspeaker assembly, with 12" frame, perforated steel grill, and integrated steel back can and attached "T" bar for finish edge. Quick installation with minimal tile cutting.

Forum 232 Amplifier

Two infrared wireless Microphone receivers
Two Power Amplifiers: Total 50 watts RMS class D amplifier, 25 watts each channel
Security Alert Output
RS-232 wall panel control of line input levels
Switchable computer anti hum circuit with ON/OFF switch
Teacher Priority instantly attenuates all line inputs
Three-band digital equalizer ± 12dB
Digital Limiting
Two stereo auxiliary inputs for DVD & Computer/Aux
Additional DVD input gain, adjustable +10 dB boost
Front-panel auxiliary input (3.5mm)
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)
Power sleep mode to conserve energy
Rack or shelf/wall mounting kits (optional)
Light Weight Aluminum cover

IRT-55 Sapphire Transmitter / Microphone

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
Three level microphone volume switch (low, medium, high)
Unique TAP feature on the power button, that mutes the mic for private conversation
Channel A or B selectable
Auxiliary input (3.5mm)
Low profile clip for mounting
Wear with a lanyard or directly to neckline collar

TeachLogic IRF-2150 Specs

AmplifierForum 232 / IMA 232 Amplifier / Receiver
ReceiverInput : Infrared FM
ModulationFM Wide-Band
Channel A: 2.08 MHz
Channel B: 2.54 MHz
InfraredWavelength:850 nm
Tone SignalChannel A:32.768 kHz
De-Emphasis50 μs
Frequency Response40 Hz , -18 kHz, ± 3 dB
S/N Ratio›65 dB
THD‹1% @1 kHz
Nominal Deviation± 10 kHz
Maximum Deviation± 25 kHz
External SensorInput: Two, RCA
ConnectivityCoverage: 2,500ft/² (232.26 m/²)
Auxiliary InputOne DVD, Line Level, Dual RCA with +10 dB Gain Control
One Aux input with front and rear panel 3.5 mm
Line Outputs2-3.5 mm with Gain Control,Front Panel
Equalization3-Bands digital ±12 dB
Output Power (RMS)Two amplifiers, @18 watts ea. (RMS),36 Watts total (RMS)
Output Impedance4 ohm minimum per channel
Output ConnectionOne Phoenix connector
Power Supply 12 VDC / 2.8 A / 42 W CE,CSA and UL Listed
Dimensions (W x H x D)8.5 x 1.75 x 7.5" (21.59 x 4.45 x 19.05 cm)
Weight1.5 lb (0.68 kg)
MicrophoneSapphire Infrared Transmitter IRT-55
TransmissionCarrier: Infrared
Transmission Frequency2.08 MHz and 2.54 MHz
Channel SwitchingA or B : Field Switchable
Transmitting DiodesSix
ModulationFM Wide-Band
Pilot ToneFrequency : 32.768 KHz
Peak Deviation± 25 KHz
Operating Range1,500 Ft ² / 60' Line of Sight
Battery Level Indicator
Blue - Full
Purple - Medium
Red - Low
Battery TypeLithium-ion ( 3.7 V / 620 mAh)
Battery LifeApproximately 8-9 Hours/Charge
External PowerCharger : DC +5 V, Micro USB Connector
Transmission Angle180° Conical
User ControlsPower Switch (Push) - On/Off
Mute Switch (Push) - On/Off
Mic Switch (3 position) - + 6 db, Normal, - 3 db
Aux. Vol. / Gain - Increase, Decrease
Channel Select - (A or B) in battery compartment
Auxiliary InputExternal : 3.5 mm Stereo Line Level
Dimensions (H x W x D)3.00 x 1.25 x .75" ((7.62 x 3.18 x 1.91 cm)
Weight1.4 oz (39.69 g) with battery
Infrared Dome Sensor
Operating Frequencies2.3 mHz to 2.8 mHz
IR Receiver6 large lens diodes
Range40-50' (12.19-15.24 m) line of sight, 2500 ft/² (232.25 m/²)
MountingClip-on "T" bar bracket
ConnectorFemale RCA
Indicator LightsGreen LED for Power On
Cable75 ohm
Cable Length50' (15.24 m)
Dimensions4.62 x 1.37" (11.73 x 3.47 cm)
Weight0.46 lb (0.2 kg)
SpeakersLS-4 Package (4 - SP-628L 2-Way Lay-in Ceiling Speakers)
Frequency Range80 Hz to 15 kHz, ± 6dB
Power30 Watts Continuous
Sensitivity89 dB SPL (1W/1M)
Impedance8 ohms
Crossover Frequency6 kHz
Nominal Coverage Angle90° x 90°
LF DetailPolymica / rubber
Magnet10 oz
HF Driver SizeHigh efficient 1"domed tweeter, neodymium
Enclosure MaterialAir Sealed Metal Backcan Infinite Baffle
White Powder Coated Finish
TerminationScrew terminals for secure speaker wire connection
Mounting1 x 2' Lay-in speaker assembly
Attached "T" Bar support
Dimensions (H x W x D)12.25 x 23.75 x 6.25" (31.11 x 60.32 x 15.88 cm)
13" (33.02 cm) with "T" Bar support
5/8" (1.59 cm) panel thickness
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