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Q-SYS QIO-ML24i High-Density 24-Channel Network Audio Expander

Q-SYS QIO-ML24i High-Density 24-Channel Network Audio Expander

SoundPro Item: 201771 | Part Number: QIO-ML24i

Pricing available upon request

Pricing available upon request

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  • 24 Mic/Line Inputs In A Single Peripheral Reduce Device Count In Large Systems
  • Dual Gigabit Ethernet Ports Support Both Network And Peripheral Redundancy
  • Configurable Phantom Power On Inputs Accommodates Condenser Microphones
  • Microphone Detection Enables Usage Monitoring And Failure Notifications
  • Integrated Relay Mute Prevents Power-Up Transients On Audio Outputs
  • 8x8 GPIO Block Extends Third-Party Device Control Without Additional Hardware
  • Surface Or Rack Mounting Supports Flexible Installation Across Venue Types

The Q-SYS QIO-ML24i is a high-density network audio expander designed for systems integrators and AV engineers who need to scale Q-SYS deployments beyond what multiple smaller I/O peripherals can practically deliver. By consolidating 24 mic/line inputs into a single 1RU unit, it reduces rack space, simplifies cabling, and lowers the device count in large-format installed systems. Typical applications include event production facilities, large hospitality environments, judicial chambers, and enterprise paging infrastructures where mic input density and system reliability are non-negotiable.

The QIO-ML24i bridges non-networked analog sources directly into the Q-SYS ecosystem over standard gigabit Ethernet. Dual network ports support both network and peripheral redundancy, giving integrators a clear path to fault-tolerant designs without additional hardware. Configurable phantom power, microphone detection for monitoring and failure notifications, and an integrated relay mute on outputs all add operational intelligence that matters in mission-critical installed environments. The 8x8 GPIO block extends third-party device control connectivity, making it straightforward to tie in external hardware without a separate control interface. Surface and rack mounting options accommodate both traditional rack rooms and distributed equipment closets common in hospitality and judicial installs.

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Specifications

Connectivity
Audio Channels
24 mic/line inputs
LAN
2x gigabit Ethernet connectors; does not provide or accept PoE
Mic/Line Inputs
Maximum Input Level
+24 dBu (balanced); +18 dBu (unbalanced)
Preamplifier Gain Range
0 dB to 60 dB
Input Sensitivity Range
-36 dBu to +24 dBu
Phantom Power
+48 VDC
Input Impedance
10 kΩ (balanced); 5 kΩ (unbalanced)
Equivalent Input Noise
<-123 dBu; no weighting; 20 Hz - 20 kHz
Input Crosstalk @ 1 kHz
>110 dB typical; >95 dB max
Input Dynamic Range
>111 dB (+24 dBu sensitivity); >110 dB (+10 dBu sensitivity); >106 dB (-10 dBu sensitivity); >86 dB (-36 dBu sensitivity)
Physical
Dimensions (L x W x H)
12.0 x 17.4 x 1.72 in; 304.8 x 443.0 x 43.6 mm
Weight
8.5 lbs; 3.86 kg
Mounting Options
Surface- or rack-mountable; 1RU; full-rack width
Power
Power Supply Input
1x universal input; 100-240 V; 50/60 Hz
AC Input Rating
65 W max
Thermal Dissipation
222 BTU/h
Environmental
Operating Temperature
32° to 122° F; 0° to 50° C
Storage Temperature
-4° to 158° F; -20° to 70° C
Humidity
5% to 85%; non-condensing
Certifications
Regulatory
FCC 47 CFR Part 15 Subpart B; Canada ICES-003; EN 55032; EN 55035; EU RoHS directive 2011/65/EU; WEEE directive 2012/19/EU; REACH; China RoHS GB/T26572; RCM; IEC/EN/UL 62368-1
Included Items
Included Accessories
1x AC mains power cord (country-specific); removable rack ears
Accessories
Optional Accessories
QIO-CK redundancy cable kit (sold separately)

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