← QSC Products in India
  • Q-SYS QIO-L4o rear panel with four line outputs, LAN and power connectors
  • Q-SYS QIO-ML4i, QIO-ML2x2 and QIO-L4o compact network audio expanders stacked together
1 2

QSC Q-SYS QIO-L4o: 4-Channel Line Output Audio Expander

Model QIO-L4o

Request a Quote
Availability: In Stock
Request a Quote Chat on WhatsApp
  • Authorized QSC Reseller
  • Manufacturer Warranty
  • Pan-India Delivery
  • Expert Project Support
  • Four line outputs, level range -36 dBu to +24 dBu
  • Output dynamic range 108 dB
  • PoE powered or 24 V DC with daisy-chain connector
  • Daisy-chain up to four QIO units per network run
Installed Audio Solutions for Business Part of our complete AV solutions Explore Solutions
View full details
Product Overview

Overview

The Q-SYS QIO-L4o is a compact network audio expander with four balanced line outputs and no inputs. It takes audio off the Q-SYS network and delivers it as four analog line outputs where an amplifier, recorder or hearing-loop driver sits, in the same quarter-rack PoE case as its siblings. Choose it for a remote zone that needs a line feed rather than a network amplifier.

Corporate AV supplies, installs and supports Q-SYS systems from QSC across India. Request a quote for the QIO-L4o with supply, installation and commissioning.

Key features

  • Four line outputs, level range -36 dBu to +24 dBu
  • Output dynamic range 108 dB
  • PoE powered or 24 V DC with daisy-chain connector
  • Daisy-chain up to four QIO units per network run
  • Quarter-rack width, surface-mount hardware included

Typical applications

  • Amplifier closets in remote zones
  • Recorders and hearing-loop drivers
  • Rooms where a core feeds extra outputs through the network
Why choose the QIO-L4o
it is a 4-channel line output network audio expander from QSC, it gives a remote zone four clean line outputs from the Q-SYS network over one PoE cable.
Product Highlights

Key Benefits

Four line outputs, level range -36 dBu to +24 dBu

Output dynamic range 108 dB

PoE powered or 24 V DC with daisy-chain connector

Daisy-chain up to four QIO units per network run

Quarter-rack width, surface-mount hardware included

Use Cases

Ideal Applications

Amplifier closets in remote zones

Recorders and hearing-loop drivers

Rooms where a core feeds extra outputs through the network

Technical Details

Technical Specifications

Connectivity
Outputs 4 line
LAN (PoE) Gigabit, Q-LAN; PoE IEEE 802.3af Type 1
LAN (Thru) Ethernet daisy-chaining, up to four QIO units per network run
External power 24 V DC nominal, 2.5 A on Euro connector (QIO-PSU, sold separately)
Output performance
Output level range -36 dBu to +24 dBu
Output dynamic range 108 dB
Output-to-output crosstalk at 1 kHz Above 85 dB
Output impedance 150 to 300 Ohm
Sample rate 48 kHz, 24-bit
Physical
Dimensions (L x W x H) 215.9 x 108 x 40.4 mm
Weight 0.78 kg
Mounting Surface or wall (hardware included); rack with QIO-RMK kit, sold separately
Operating temperature 0 to 50 C

Documents & Downloads

Datasheet Q-SYS QIO-L4o Data SheetOfficial Biamp data sheet for the QIO-L4o. The PDF may also cover other models in the same range. User Manual Q-SYS QIO-L4o ManualOfficial Biamp manual for the QIO-L4o. The PDF may also cover other models in the same range.

Related Solutions

Why CorporateAV?

Sourced right. Installed right.

Genuine Manufacturer Stock
Every unit sourced through authorized distribution, backed by manufacturer warranty.
Expert AV Integration
Paired correctly with compatible systems and your room's existing AV infrastructure.
Pan-India Delivery & Support
On-site installation and ongoing technical support wherever your project is based.
More Details

Additional Information

Why Buy The QIO-L4o From Corporate AV?
  • Genuine QSC stock with manufacturer warranty support
  • Custom pricing for bulk and multi-room / multi-site rollouts
  • Local after-sales support — a real team you can call or WhatsApp, not a call centre
  • Expert guidance on product selection and deployment planning
  • Professional installation across Bangalore, Hyderabad, Mumbai, Delhi NCR, and the wider India region
Contact us: +91 99452 30186, WhatsApp us or email avsupport@corporateav.in.
Distribution

Corporate AV supplies and installs QSC products across Bangalore, Hyderabad, Mumbai, Delhi NCR, Chennai, Pune, Kolkata, Ahmedabad, and the wider India region.

Frequently Asked Questions

What is the Q-SYS QIO-L4o?
The Q-SYS QIO-L4o is a compact network audio expander with four balanced line outputs and no inputs. It takes audio off the Q-SYS network and delivers it as four analog line outputs where an amplifier, recorder or hearing-loop driver sits, in the same quarter-rack PoE case as its siblings. Choose it for a remote zone that needs a line feed rather than a network amplifier.
Can I use the QIO-L4o for inputs?
No. It has four outputs only. The QIO-ML4i provides four inputs, and the QIO-ML2x2 gives two inputs and two outputs.
What is the output impedance?
Q-SYS lists 150 to 300 ohm output impedance, with 48 kHz and 24-bit conversion.
Is PoE enough to power it?
Yes. It conforms to IEEE 802.3af Type 1 PoE, or it can run on a 24 V DC supply that also powers the next unit in a daisy chain.
Can it be rack mounted?
Yes, as a quarter-rack 1RU unit with the optional QIO-RMK kit, sold separately. Surface and wall mounting hardware is included.
How big is it?
About 215.9 x 108 x 40.4 mm and 0.78 kg, with 0 to 50 C operating range.
Can Corporate AV supply and install the Q-SYS QIO-L4o in India, and how do I get a quote?
Yes. Corporate AV supplies, installs and supports Q-SYS and QSC systems across India, with a site survey, commissioning and after-sales support. Use the Request a Quote button on this page or message us on WhatsApp.