The Integrated Core 250i and 500i bring 
the power and elegance of the larger Q-Sys 
Integrated Cores to applications requiring 
fewer channels. Integrated Cores have the 
capability of directly accommodating eight 
Q-Sys input and/or output cards for a total 
onboard channel capacity of 32 channels 
(more if AES or CobraNet™ cards are used). 
Channel count may be further expanded by 
the addition of Q-Sys I/O Frames and other 
peripheral devices.
Applications – The Integrated Q-Sys 
Cores are an ideal choice for boardrooms, 
conferencing, convention centers, 
entertainment venues, hospitality, houses of 
worship, legislative installations, performing 
arts, sports bars, stadiums and arenas, 
theme parks and transportation facilities.
Platform – Using a customized Linux OS 
and running on Intel
®
 microprocessors, 
the Core 250i and 500i are amazingly 
powerful.  Because Q-Sys doesn’t depend on 
proprietary DSP hardware, it directly benefits 
from advancements driven by the entire 
global Computing / IT industry, and software 
improvements don’t require new hardware. 
New capabilities are added on a regular basis. 
Visit www.qscaudio.com or contact your QSC 
representative for the latest updates.
Network – Q-Sys utilizes our IT-friendly 
Layer-3 Gigabit Ethernet implementation. 
The audio transport is low-latency (fixed at 
2.5 ms from any input to any output) and 
based on accepted IP standards.  Q-Sys will 
operate using a variety of available, off-the-
shelf Gigabit switches (see the QSC website 
for a list of qualified switches).  Because it is 
standards based it can easily run on a shared 
network without segregating audio traffic via 
tedious VLAN configuration.
Design GUI – Q-Sys cores are configured 
using an intuitive object-based drag and drop 
user interface that provides for the creation 
of nearly any imaginable signal flow. Control 
logic objects are provided and custom 
scripting may also be used to accomplish a 
wide range of interface or control tasks. The 
design GUI is capable of quickly and easily 
generating graphical control screens that may 
be run on network-connected computers, 
tablet devices or QSC touch-screen 
controllers.
Scalable Redundancy – While QSC is 
known for and dedicated to building the 
most reliable products, some applications call 
for additional assurance. Any element of a 
Q-Sys system – Cores, networks, I/O Frames 
and even amplifiers may be deployed in a 
redundant configuration. The system designer 
has the choice of making one or all system 
elements redundant.
Peripherals – Q-Sys capabilities are further 
enhanced by a growing suite of peripheral 
devices including page stations, touch screen 
controllers and specialized I/O cards.
Q-Sys is a suite of powerful tools that make 
any project’s requirements simple to achieve.  
It provides rock-solid performance backed by 
the unrivaled service and support QSC has 
built its reputation on. For more information 
please visit: www.qscaudio.com/products/
network/QSys.
Features
• Centralized processing 
architecture using Intel
®
 
processing
• Eight on board slots 
accommodate all Q-Sys I/O 
cards
• Abundant DSP capacity
• Uses standard Gigabit 
Ethernet hardware and 
protocols for audio transport 
and control
• Control and interface to 
external devices using TCP/IP, 
GPIO and RS-232
• Powerful and intuitive design 
GUI
• System seamlessly integrates 
with QSC amplifiers and 
loudspeakers
• Supports multiple levels of 
system redundancy
• Q-Sys technical  
support is available  
24/7 – worldwide
Integrated System 
Platform
Core 250i | Core 500i
Core 250i | Core 500i
™