Teach Logic IRS-8655/LS4

The Teach Logic IRS-8655/LS4 is a digital hybrid sound-field system for use in the classroom. This system comprises the IMA-820 Spectrum III Amplifier/Receiver Base Station, IRT-60 Sapphire Microphone/Transmitter with lithium-ion battery for voice transmission, ICS-55 Ceiling Sensor for IR connectivity throughout the room, and four SP-628L Lay-In Ceiling Speakers. It also includes a BRC-55 Drop-In Battery Charger for charging the Sapphire microphone/transmitter. The system can be added to an existing multi-media system for expanding its utilization to provide voice reinforcement.

IMA-820 Spectrum III 4-Channel Receiver / Amplifier Base Station with Switching Power Supply

The IMA-820 Spectrum III 4-Channel Receiver / Amplifier Base Station with Switching Power Supply from Teach Logic features four auxiliary inputs, dual IR receivers, page pass-through, and a 100W amplifier. This receiver has 100W of power for large rooms or rooms with high ambient sound levels. It helps create a good intelligible learning environment over a large area with up to 8 ceiling or wall speakers (available separately).

The four auxiliary inputs provide multimedia integration with even distribution of sound for all audio in the classroom. The unit also features RS-232 wall panel control of the line inputs, fire alarm connection (AC or DC), 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.

• Sound-field system for large rooms
• Dual infrared wireless microphone receivers
• Power Amplifiers: 100W total RMS power; four 25W digital hybrid Class D amplifiers
• Security alert contact connection
• Fire alarm input AC or DC from 5 to 24V
• Page over-ride (muting) with page pass-through to classroom speakers; 100V, 70V, 25V input level
• Four line inputs for DVD, computer, MP3, and Aux
• Auxiliary input features mic or line level switch
• Anti-hum computer balun (On/Off switch)
• Front panel auxiliary input for MP3 (3.5mm)
• DVD input via dual RCA on rear panel
• 3.5mm Aux and computer input on rear panel
• 3.5mm lesson capture output with level control on rear panel
• 3.5mm ALS output with level control on rear panel
• Five-band equalizer
• DFG (Digital Feedback Guard)
• Remote teacher priority over line inputs
• Power sleep mode to conserve energy
• Drop-in charger connection (5VDC, USB)
• Powers up to 8 speakers (not included)
• Rack or shelf mountable using optional kits (not included)

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

Lay-In Ceiling Speaker

Teach Logic'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

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 micrphone/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)