Spectrum™ Receiver Amplifier

Amplifier | Infrared Microphone Receiver | Audio Mixer


4 AUDIO INPUTS

2 MICS

RS-232

SECURITY ALERT

FIRE ALARM

PAGE MUTE

VIDEO CONFERENCING

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Description

New & Improved for 2021! The Spectrum™ is our most powerful infrared classroom audio system for use in larger gathering areas or in a room where you need more than four speakers.

It is the ultimate audio system for group presentation; whether in a classroom, boardroom, or conference area. Its two channel receiver allows the simultaneous use of two wireless infrared microphones. Our Sapphire pendant  is ideal for hands free presentation while our IRH-35 handheld can be passed around the room for individual participation.

When connected to overhead speakers, the Spectrum™ ensures that crystal clear sound is delivered to every seat in the room.

The Spectrum™ has 4 auxiliary line inputs to integrate various media devices to supplement your presentation material for added engagement, plus connections for intercom, fire alarm, and security alert.

An ultrasensitive dome sensor mounted to the ceiling renders 100% reliable signal connectivity of the microphone throughout the room.

With our advanced infrared (IR) engineering, TeachLogic systems are less susceptible to outside interference and all transmission will be contained in the room. IR will not pass through a solid surface, thus eliminating transmission into an adjacent room and providing absolute security. What is said in the room stays in the room.

Why IR?

Additional information

Weight 1.95 lbs
Dimensions 7.5 × 8.5 × 1.75 in
Amplifier Output Power

100 W RMS, 4 x 25 W channels

Receiver Input

Infrared FM, 2 wireless mic channels

Modulation

Wide-band FM

Reception Frequencies

Ch. A: 2.08 MHz
Ch. B: 2.54 MHz

Deviation

10 kHz Nominal, 25 kHz Maximum

De-emphasis

50 μs

Tone Key

32.768 kHz

Infrared Wavelength

850 nm

External Sensor Input

2, RCA, powered ports

Connectivity Coverage

1,600 Sq Ft per sensor, up to 2 sensors supported

Total Harmonic Distortion

<1% @ 1 kHz

Frequency Response

20 Hz – 20 kHz, ±3 dB

Line Level Inputs

4: 1x dual RCA, 3x 3.5 mm

Anti-Hum Balun

Present on 1 Aux input for computer

Wired Mic Input

1 aux input switchable to mic input

Line Outputs

Conferencing: 3.5 mm with gain control – front panel
Assistive Listening System: 3.5 mm with gain control – rear panel

Page Input

2-pin Phoenix; 4 V, 25 V or 70 V normal

Page Input Sensitivity

51 mV min

Security Alert

Contact Closure (COM, N/O, N/C)

Fire Alarm

Contact Closure by fi re panel mutes audio

Output Impedance

Rated Load: 4 Ω minimum impedance

Equalization

5-band, ±10 dB

S/N Ratio

65 dB

Speaker Connection

4-pin Phoenix connectors

Charger Output

5 VDC, USB

Power Supply

19 VDC / 6.3 A CE, CSA and UL listed

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