QSC I/O-22
QSC I/O-22

The Q-SYS I/O-22 is a compact unit designed for use when the audio sources and destinations of a Q-SYS network are physically spread out, such as the individual seats in a conferencing system or individual rooms in a multi-room venue. Providing two line mic/line inputs and two line outputs, the I/O-22 is ideal for applications such as legislative or judicial chambers, meeting rooms, ballrooms, ancillary zones, classrooms, VIP suites, and stage patching.

The I/O-22 connects directly to the Gigabit Ethernet network via redundant Q-LAN ports (RJ-45 Ethernet connectors). Other connections include a scriptable RS-232 port and eight GPIO ports, as well as USB and remote display ports that are reserved for future use.

The unit is powered via PoE (Power over Ethernet) or 24 VDC and includes an 8.5-watt mono amplifier to drive a local monitor speaker. Compact in size, the I/O-22 includes a mounting plate that allows it to be used in numerous hideaway locations such as under a desk or attached to a rack tray.

  • Two mic/line inputs and two line outputs.
  • One 8.5-watt output for driving an external loudspeaker.
  • May use Power over Ethernet (PoE) or local power supply.
  • Premium 24-bit AD and DA conversion used throughout.
  • Mounting bracket simplifies installation.
  • Uses standard Gigabit Ethernet hardware for audio transport with dual Ethernet connections for network redundancy.
  • Q-SYS technical support is available 24/7 – worldwide


System audio input and output device

Panel Controls

Unit ID button momentary switch

Panel Indicators

Power On: Green LED
Device Status: Tri-color LED
Locate / ID: Green LED

Panel Connectors

Mic/Line: 2 × 3-pin Euro style connectors, Orange
Line Out: 2 × 3-pin Euro style connectors, Green
GPIO: 2 × 6-pin (8 signals, 4 ground) Euro style connectors
RS-232: DE-9 (male 9-pin D shell connector)
USB: For future development
Remote Display: For future development
Speaker: 2-pin Female Euro style connectors
Aux Power: 2-pin Euro style connector
Q-SYS Network LAN A: RJ45 1000 MBps only
Q-SYS Network LAN B: RJ45 1000 MBps only

Input Dynamic Range

Unweighted > 88 dB
A-weighted > 91 dB

Input Frequency Response
(20 Hz–20 kHz)

±0.8 dB

Max Input Level

+12 dBu gain setting: 30.8 mV
-8 dBu gain setting: 1.9 V
-28 dBu gain setting: 3.09 V

Distortion (20 Hz - 20 kHz)
At max input levels

+12 dBu gain setting: -70 dB or 0.032%
-8 dBu gain setting: -57 or 0.14%
-28 dBu gain setting: -57 or 0.14%

Input Crosstalk (20 Hz–20 kHz typical)

-78 dB (between channels 1 and 2)

Common Mode Rejection (20 Hz - 20 kHz)

-39 dB

Output Dynamic Range

Unweighted > 104 dB
A-weighted > 107 dB

Output Frequency Response
(20 Hz - 20 kHz)

+ 0.3 dB to -0.5 dB (Line out)

Let us follow up
with you
Our office hours are 9:30am-5:30pm weekdays — please drop by, call us or fill in the contact form so we can reply to you shortly.

Magna-Tech Electronic Co., Inc.
6114 NW 74th Ave.
Miami FL 33166 USA
Phone: (305) 573-7339
Fax: (305) 573-8101
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