TeachLogic IRQ-3150 [RESTOCK ITEM]
Quantum II Infrared Column Sound System with Sapphire Microphone/Transmitter

OUR PART #  IRQ-3150-RST-01


NOTE: This is a RESTOCK item that has had its box opened or has been repackaged. It may have minor cosmetic flaws and may have been sold to a customer and returned. Please contact your Sales Pro for more information on this and other products.

TeachLogic's Quantum II is a completely self-contained infrared wireless microphone sound system for portable use or permanent installation. Two wireless microphones can be used simultaneously, one for the teacher and a handheld for student participation. Quantum II has a powerful 30-watt amplifier and a full range speaker for complete coverage of a typical classroom. It can be complemented by a companion speaker for improved sound distribution throughout the room.

Optional System Accessories  (sold separately):

  • Companion speaker with wall bracket
  • Soft carrying case
  • Folding speaker stand

TeachLogic IRQ-3150 Includes:

  • Column speaker with a built-in 30W amplifier, two infrared microphone receivers, built-in sensors, line input, ALD/Recording output
  • Wall-mount bracket (IRC-360)
  • Sapphire transmitter/microphone with Lithium battery (IRT-55)
  • Battery charger (BRC-15)

TeachLogic IRQ-3150 Features:

  • Two infrared wireless microphone receivers
  • Powerful 30 watt amplifier
  • Efficient full-range coaxial speaker
  • Built-in wide angle infrared sensor for 180° reception
  • Tone control, ± 6dB
  • Auxiliary input for computer or iPod™ (3.5mm)
  • Line output for Assistive Listen System (3.5mm)
  • Threaded insert for speaker stand mount
  • Wall mount bracket included

The Sapphire Pendant infrared transmitter/microphone with rechargeable Lithium-ion battery and unidirectional microphone for true voice reproduction and excellent feedback suppression.

Sapphire IRT-55 Infrared Transmitter Features:

  • Only 1.4 oz. including battery
  • 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
  • Channel A or B selectable
  • Three level mic volume switch (low, medium, high)
  • Auxilary input (3.5mm)
  • Low profile clip for mounting
  • Wear with a lanyard or directly to neckline collar

Sapphire IRT-55 Infrared Transmitter Specifications:

  • Transmitter Carrier: Infrared
  • Transmission Frequencies: 2.08 MHz and 2.54 MHz
  • Channel Switchable A or B: Field-switchable
  • Transmitting Diodes: Six
  • Modulation: FM Wide-Band
  • Pilot Tone Frequency: 32.768 KHz
  • Peak Deviation: ± 25KHz
  • Operating Range: 1,500 Ft ². 60 Ft. Line of Sight
  • Battery Discharge Indicator: 
    • Blue: Full
    • Purple: Medium
    • Red: Low
    • Flashing Red: Very Low Battery
  • Battery Used: Lithium-ion (3.7V / 620mAh)
  • Battery Life: Approx. 8-9 Hrs/Charge
  • External Power Charger: DC +5V, Micro USB Connector
  • Transmission Angle: 180° Conical
  • User Controls: 
    • Power Switch (Push): On/Off
    • Mute Switch (Push):On/Off
    • Mic Switch (3-position): + 6dB, Normal, - 6dB
    • Aux.Vol../Gain: Increase, Decrease
    • Channel Select: (A or B) in battery compartment
  • External Aux Input: 3.5mm Stereo Line Level
  • Dimensions (HxWxD): 3-5/8" x 1-1/4" x 3/4"
  • Weight: 1.4 oz including battery

Shipping Weight: 12 lbs.

TeachLogic IRQ-3150 [RESTOCK ITEM]
Quantum II Infrared Column Sound System with Sapphire Microphone/Transmitter

OUR PART #  IRQ-3150-RST-01

Product Information:

NOTE: This is a RESTOCK item that has had its box opened or has been repackaged. It may have minor cosmetic flaws and may have been sold to a customer and returned. Please contact your Sales Pro for more information on this and other products.

TeachLogic's Quantum II is a completely self-contained infrared wireless microphone sound system for portable use or permanent installation. Two wireless microphones can be used simultaneously, one for the teacher and a handheld for student participation. Quantum II has a powerful 30-watt amplifier and a full range speaker for complete coverage of a typical classroom. It can be complemented by a companion speaker for improved sound distribution throughout the room.

Optional System Accessories  (sold separately):

  • Companion speaker with wall bracket
  • Soft carrying case
  • Folding speaker stand

TeachLogic IRQ-3150 Includes:

  • Column speaker with a built-in 30W amplifier, two infrared microphone receivers, built-in sensors, line input, ALD/Recording output
  • Wall-mount bracket (IRC-360)
  • Sapphire transmitter/microphone with Lithium battery (IRT-55)
  • Battery charger (BRC-15)

TeachLogic IRQ-3150 Features:

  • Two infrared wireless microphone receivers
  • Powerful 30 watt amplifier
  • Efficient full-range coaxial speaker
  • Built-in wide angle infrared sensor for 180° reception
  • Tone control, ± 6dB
  • Auxiliary input for computer or iPod™ (3.5mm)
  • Line output for Assistive Listen System (3.5mm)
  • Threaded insert for speaker stand mount
  • Wall mount bracket included

The Sapphire Pendant infrared transmitter/microphone with rechargeable Lithium-ion battery and unidirectional microphone for true voice reproduction and excellent feedback suppression.

Sapphire IRT-55 Infrared Transmitter Features:

  • Only 1.4 oz. including battery
  • 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
  • Channel A or B selectable
  • Three level mic volume switch (low, medium, high)
  • Auxilary input (3.5mm)
  • Low profile clip for mounting
  • Wear with a lanyard or directly to neckline collar

Sapphire IRT-55 Infrared Transmitter Specifications:

  • Transmitter Carrier: Infrared
  • Transmission Frequencies: 2.08 MHz and 2.54 MHz
  • Channel Switchable A or B: Field-switchable
  • Transmitting Diodes: Six
  • Modulation: FM Wide-Band
  • Pilot Tone Frequency: 32.768 KHz
  • Peak Deviation: ± 25KHz
  • Operating Range: 1,500 Ft ². 60 Ft. Line of Sight
  • Battery Discharge Indicator: 
    • Blue: Full
    • Purple: Medium
    • Red: Low
    • Flashing Red: Very Low Battery
  • Battery Used: Lithium-ion (3.7V / 620mAh)
  • Battery Life: Approx. 8-9 Hrs/Charge
  • External Power Charger: DC +5V, Micro USB Connector
  • Transmission Angle: 180° Conical
  • User Controls: 
    • Power Switch (Push): On/Off
    • Mute Switch (Push):On/Off
    • Mic Switch (3-position): + 6dB, Normal, - 6dB
    • Aux.Vol../Gain: Increase, Decrease
    • Channel Select: (A or B) in battery compartment
  • External Aux Input: 3.5mm Stereo Line Level
  • Dimensions (HxWxD): 3-5/8" x 1-1/4" x 3/4"
  • Weight: 1.4 oz including battery

Shipping Weight: 12 lbs.

Add to Cart

We're sorry, only of this item available



Call a Sales Pro at for more information

Serving Contractors, Dealers, and Installers Since 1977

Contact: 1-800-828-0509 / Hours: Mon - Fri 7:00AM - 7:00PM