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True diversity In-ear Reference Monitoring System

The OSL Q500 series offers users upto 16 simultaneous operating channels, over a PLL synthesized circuit and anti-interference support. The Q500.IRM is our flagship in-ear monitoring system, that uses the Q500 transmitter, attached to the IRM 1, a high-fidelity earphone with great dynamic range and an extended bass response. The in-ear monitors are designed for extreme comfort and passive noise cancellation

Critical Performance Indicators

Operating Channels

16 Channels Simultaneous Use

In-ear Pod Output

Max. 60mV

RF output power

Max. 30 mW

Frequency Bands

C: 734 - 776 MHz;
GB: 606 – 648 MHz;
E: 823 – 865 MHz;
D: 780 - 822 MHz

Power Supply

2 AA batteries, 1.5 V


Wideband FM

Diversity Principle

True Diversity

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