Teach Logic IRF-2655/WM4

The Teach Logic IRF-2655/WM4 is a sound-field system designed for teachers in a classroom environment. The Forum 232 features a Digital Feedback Guard (DFG) to eliminate acoustical feedback. The wireless Sapphire microphone has a capsule which allows maximum gain before feedback. It has a 50W Digital Hybrid Class D amplifier. The Forum 232 allows for remote adjustment of inputs via the RS-232 wall panel controller. The unit has two infrared wireless microphones which can be used simultaneously. The Forum 232 provides two auxiliary line inputs for multi-media integration with even distribution of sound for the audio in the classroom. The Forum 232 has a Line level output for lesson capture and another output for Assistive Listening System (ALS).

The Forum 232 IRF-2655 includes four wall mount speakers, two Sapphire transmitter/microphone with Lithium battery, a ceiling sensor for IR connectivity and a drop-in battery charger.

Forum 232 2-Channel Infrared Receiver/Amplifier Base Station with Switching Power Supply

The Forum 232 2-Channel Infrared Receiver/Amplifier Base Station with Switching Power Supply from Teach Logic is the nucleus of the Forum 232 Wireless Classroom Microphone System. This receiver is designed for use with the Sapphire 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 unit features RS-232 wall panel control of the line inputs, remote teacher security alert, teacher priority with instant attenuation of the line levels via Sapphire IRT-60 pendant mic (available separately), DFG (Digital Feedback Guard), and switchable anti-hum circuit on the computer input.

• Dual infrared wireless microphone receivers
• Two Power Amplifiers: Total 50W RMS Class D amplifier, 25W 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 and computer/Aux
• Additional DVD input gain, adjustable +10 dB boost
• 3.5mm front-panel auxiliary input
• 3.5mm ALS output for assistive listening system with gain control on front panel
• 3.5mm REC output for lesson capture with gain control on front panel
• Powers up to 4 speakers (not included)
• Power sleep mode to conserve energy
• Rack or shelf mountable using optional kits (not included)
• Lightweight aluminum cover

Infrared Dome Sensor

Teach Logic'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

IRT-60 Sapphire Infrared Transmitter/Microphone w/ Security Alert & Rechargeable Battery

Well suited for classrooms and forums, the rechargeable IRT-60 Sapphire Infrared Transmitter/Microphone from Teach Logic offers the same aesthetic design and feature set as the IRT-55 Sapphire, but with an additional remote "Security Alert", allowing teacher priority with instant attenuation of the line levels to work with the optional Forum 232 and Maxim III amplifiers. The Sapphire can be worn with a lanyard or clipped directly to your neckline collar and offers a high level output, reliable connectivity, and great definition. With a built-in breath filter, the Sapphire can function as a pass-around hand microphone. Tapping the power button momentarily mutes the microphone, allowing for private conversations. The 3.5mm auxiliary input allows wireless playback of your iPod, while a three-position slide switch provides selections of low, medium, or high microphone volume levels. The included Lithium-Ion battery offers up to 9 hours use. The Sapphire IRT-60 ships with a BRC-15 wall charger and a breakaway lanyard.

• 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
• Lightweight Design: 1.4 oz
• 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
• Includes BRC-15 wall charger

Wall-Mount/Bookshelf Speaker with Mount Bracket

Teach Logic's Wall-Mount/Bookshelf Speaker with Mount Bracket is a full range 2-way compact wall mount/shelf mount speaker. This speaker provides low distortion and a smoother frequency response ideal for articulate vocal clarity for more even coverage. The included wall-mount bracket enables the unit to be secured against a wall or other flat surface.

• Structural reinforced ABS enclosure with metal mesh grille
• Mounting bracket for wall-mount or desk top stance
• Spring terminal for secure speaker wire connection
• 6" woofer and a high efficient 1" Mylar domed tweeter
• Passive crossover
• Housed in a ported enclosure
• Shielded magnet to prevent video interference

BRC-55 Drop-In Charger for Sapphire and IRH-35/40 Microphones/Transmitters

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

• Compatible with Teach Logic Sapphire and IRH-35/40 Microphones/Transmitters
• Charging Time is approximately 10-12 Hours
• Weigh about 1.75 lb (0.79 kg)