TeachLogic IRS-8655 Spectrum III Infrared Wireless Classroom Microphone System with Sapphire Microphone/Transmitter & 4 Lay-In Ceiling Speakers

BH #TEIRS8655LS4 • MFR #IRS-8655/LS4
TeachLogic
TeachLogic IRS-8655 Spectrum III Infrared Wireless Classroom Microphone System with Sapphire Microphone/Transmitter & 4 Lay-In Ceiling Speakers
0
Special Order
Expected availability: 3-7 business days
$2,305.95

Important Notice

  • This item is noncancelable and nonreturnable.
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TeachLogic IRS-8655 Overview

  • 1Description
  • 2TeachLogic IMA-820 Spectrum III 4-Channel Receiver / Amplifier Base Station with Switching Power Supply
  • 3TeachLogic Infrared Dome Sensor
  • 4TeachLogic IRT-60 Sapphire Infrared Microphone with Plug-In Charger
  • 5TeachLogic Lay-In Ceiling Speaker
  • 6TeachLogic BRC-55 Drop-In Charger for Sapphire and IRH-35/40 Microphones/Transmitters

The IRS-8655 Spectrum III Wireless Classroom Microphone System from TeachLogic 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.

The Spectrum III Amplifier/Receiver Base Station features dual IR receivers, four 100W Class D amplifiers, digital equalization, and digital limiting, providing freedom of movement and allowing simultaneous use of two microphones (one Sapphire microphone/transmitter included). When combined with the Sapphire transmitter, the Spectrum III base station delivers several key features such as Security Alert circuit, Teacher Voice Priority, and Remote volume control for line inputs. The four auxiliary inputs provide multi-media integration with even distribution of sound for all audio in the classroom.

The ICS-55 Dome Sensor collects the IR wireless signal from the microphone/transmitter via 6 large detecting diodes and sends a composite signal to the receiver the IMA-820 Spectrum III Amplifier/Receiver Base Station via the included 50' plenum-rated cable. The ideal location for the sensor would be in the center of the ceiling, providing a clear signal path for the IR transmission from the transmitter without obstruction.

The receiver transforms this composite signal into an analog audio signal which is fed to the multimedia amplifier. The amplifier powers the four SP-628L Lay-In Ceiling Speakers (included) for even voice reinforcement throughout the room. Each of the SP-628L Full-Range Compact Coaxial Lay-In Ceiling Speaker provides low distortion and smooth natural frequency response. Each speaker comes as a complete assembly with a 12" frame, perforated steel grille, integrated steel backcan, and attached T bar for finished edges. It offers quick installation with minimal tile cutting.

TeachLogic 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 TeachLogic 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)

TeachLogic 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

TeachLogic IRT-60 Sapphire Infrared Microphone with Plug-In Charger

The TeachLogic IRT-60 Sapphire is a compact and lightweight infrared microphone that can be worn around your neck or clipped to clothing, making it well suited for teachers, instructors, and lecturers. Its cardioid polar pattern delivers focused vocal clarity with minimal ambience while the built-in breath filter reduces plosives and the integral rubber shock suspension impedes vibrations. The internal lithium-ion battery provides up to eight hours of use and conveniently recharges via the supplied BRC-15 plug-in charger.

The ITR-60 Sapphire also features a 3.5mm stereo aux input to accommodate an external source such as a smartphone, an MP3 player, or a headworn mic. The mic gain and amplifier volume are adjustable, so you can effectively optimize the signal level. The power button doubles as an easy mute on/off function. When the IRT-60 Sapphire is used with a compatible amplifier/receiver, the switchable teacher priority automatically lowers the audio volume of aux/line inputs upon detection of incoming mic signal.

  • Utilizes infrared transmission on 2.08 or 2.54 MHz
  • Operating range up to 60'
  • Cardioid (unidirectional) polar pattern yields enhanced vocal clarity
  • Built-in breath filter and integral rubber shock suspension
  • Only 1.4 ounces including battery
  • Internal lithium-ion battery provides up to 8 hours of operating time
  • Rechargeable via micro-USB or BRC-60 charging dock (available separately)
  • Battery level indicator
  • Backlight under power switch
  • Momentary mute button
  • Backlight blinks in mute mode
  • Push on/off power
  • Channel A or B selectable
  • 3-level high/mid/low mic volume switch (normal, - 3 dB, -6 dB)
  • 3.5mm stereo auxiliary input for audio device or headworn mic
  • Low-profile clip for mounting to lapel or pocket
  • Adjustable lanyard and BRC-15 plug-in charger included
  • Security alert activation (press/hold priority button for five seconds)
  • Teacher "priority" control over aux/line inputs (lowers audio volume)
  • Priority switch only functions with the Matrix, Forum 232, Maxim III, and Spectrum III amplifier/receiver
  • Multicolor LED: no light (power off), solid blue (power on), blinking blue (mic is muted), solid red during use (low battery), solid red during charging (charging in progress), solid green during charging (fully charged), solid purple (audio devices connected to the receiver have been quieted)
  • Suitable replacement for IRT-55 and IRT-89 infrared microphones

TeachLogic 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

TeachLogic 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.

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

Receiver InputInfrared FM
ModulationFM Wide-band
Reception FrequenciesChannel A: 2.08 MHz
Channel B: 2.54 MHz
IR Wavelength850 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
Sensor InputExternal: 2 x RCA
ConnectivityCoverage: 1,600 sq. ft
AUX Inputs4 x Aux
Line Level
1 x Dual RCA
3 x 3.5mm
1 x Anti-hum
Line OutputLesson capture, 3.5mm with gain control, front panel ALS, 3.5mm with gain control, rear panel
Page Over-RideInput:100V, 70V, 25V, 3-pin Phoenix
SensitivityLevel control
Security AlertContact closure N/O, N/C
Fire Alarm5 to 24 VAC/VDC
Equalization5-Band ±12 dB
Output Power4 x Amplifiers, 25 W each (RMS) 100 W total (RMS)
Output Impedance4 Ω
Output Connection2 x Phoenix connectors
Charger Output5 VDC, USB
Power Supply19 VDC / 6.3 A
CertificationsCE, CSA, and UL listed
Dimensions (W x H x D)8.5 x 1.7 x 7.5" (215.9 x 43.1 x 190.5 mm)
Weight2.20 lb (0.99 kg)

TeachLogic Infrared Dome Sensor Specs

Operating Frequencies2.3 mHz to 2.8 mHz
IR Receiver6 large lens diodes
Coverage360°
Range40-50' (12.19-15.24 m) line of sight, 2500 ft2 (232.25 m2)
MountingClip-on "T" bar bracket
ConnectorFemale RCA
Indicator LightsGreen LED for Power On
Cable75 ohm
Dual-shielded
Plenum-rated
Cable Length50' (15.24 m)
Dimensions4.62 x 1.37" (11.73 x 3.47 cm)
Weight0.46 lbs (0.2 kg)

TeachLogic IRT-60 Sapphire Infrared Microphone with Plug-In Charger Specs

TransmissionInfrared
Transmission Frequencies2.08 and 2.54 MHz
Transmission Angle180° Conical
Channels2
Transmitting Diodes6
ModulationFM Wideband
Pilot Tone32.768 kHz
Peak Deviation≥25 kHz
Operating RangeUp to 60' / 18.3 m
Input1 x 1/8" / 3.5 mm TRS
Polar Pattern (Microphone)Cardioid
Mic Gain RangeNormal, -3 dB, -6 dB
Power RequirementsInternal Battery
Battery TypeLithium-Ion (3.7 V, 620 mAh)
Battery LifeUp to 8 Hours
Charging5 VDC via Micro-USB
Dimensions (H x W x D)3.5 x 1.3 x 0.8" / 8.9 x 3.2 x 1.9 cm
Weight1.4 oz / 39.7 g (Including Battery)
Packaging Info
Package Weight0.205 lb
Box Dimensions (LxWxH)5 x 3.3 x 1.4"

TeachLogic Lay-In Ceiling Speaker Specs

Frequency Response80 Hz to 15 kHz, ± 6dB
Power30 Watts Continuous
Sensitivity89dB SPL (1W/1M)
Impedance
Crossover Frequency6 kHz
Nominal Coverage Angle90° x 90°
Driver6.5" (16.51 cm) Polymica/rubber
1" (2.54 cm) high efficient domed tweeter, neodymium
Enclosure MaterialAir sealed metal back can with infinite baffle
TerminationScrew terminals for secure speaker wire connection
Mounting12 x 24" (30.48 x 60.96 cm) lay-in speaker assembly
ThicknessPanel: 0.62" (1.57 cm)
Dimensions12.25 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)
Weight8 lbs (3.62 kg)

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

CompatibilityCompatible with TeachLogic Sapphire and IRH-35/40 Microphones/Transmitters
Power110V
Charging Time10-12 Hours
Indicator LightsRed: Charging
Green: Charged
Dimensions7.75 x 2.75 x 3.75" (19.68 x 6.98 x 9.52 cm)
Weight1.75 lb (0.79 kg)
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