Digitally Steerable Powered Column Array Loudspeaker with 24 Independently Controlled Drivers, Integrated DSP and BeamEngine GUI Control for Installation Applications

  • Digitally steerable column array speaker system provides high intelligibility speech and music reproduction
  • Class leading ±70° steering control with 24 channels of integrated DSP and amplification
  • Intuitive BeamEngine GUI for asymmetric pattern creation and even near and far field SPL coverage
  • Ideal for the most challenging acoustic environments due to extended frequency range steering control
  • 8 4" low frequency drivers, 8 3" low frequency drivers and 8 1" high frequency drivers with individual 100 Watt Class D amplifiers
  • For installation applications with coverage distances up to 40 m (131')
  • High density array of transducers with proportional frequency spacing prevents aliasing artefacts
  • Fully integrated amplified speaker system connects to other TANNOY products via VNET
  • Input accessory options for constant voltage systems and Audinate Dante* digital audio networks
  • AES3 input and link connections on RJ-45 connectors with internal sample rate conversion up to 96 kHz
  • PA/VA compliant to BS 5839
  • Architecturally styled aluminium enclosure with a semi matt white painted finish
  • Corrosion resistant aluminium perforated grille
  • Included custom brackets allow quick and accurate installation
  • 3-Year Warranty Program*
  • Designed and engineered in the U.K.


The QFlex 24 can be used as a standalone self-powered column array device for both speech and full-range BGM applications in small and mediums sized spaces, where high intelligibility and minimal visual impact are driving concerns. 

QFlex is a range of digitally steerable, multi-channel array speaker systems for the professional install market. QFlex is designed as a complete solution for applications with difficult acoustics, such as houses of worship, transportation hubs, convention centres, conference facilities, shopping malls, performing arts centres and museums.

QFlex is quite revolutionary in that it is able to achieve even coverage and SPL which is maintained across the listening plane. QFlex is able to create an asymmetrical pattern which allows similar SPLs both in the near and far field. It is able to steer the beam away from surfaces that cause reflections to frequencies beyond 12 kHz, making it the first digitally steerable array to maintain music quality over the desired area of coverage, all in a very architecturally pleasing package.

The intuitive BeamEngine GUI allows the designer to specify target areas. Based on those target areas a steering algorithm is generated and tailored for that specific area, rather than having to choose from a limited palette of opening and steering angles.

New features introduced on QFlex deliver more resolute safety and monitoring facilities, making it fully compliant in any life safety or mass notification environment. In addition QFlex has been weatherised for outdoor or harsh environments without compromising on the product’s sleek aesthetic, making it perfectly suited for large scale transport hub applications such as within airport terminals and major train stations. Among the key improvements on this front are the addition of Pilot Tone Detection capability, Sentinel SM1 System Monitor and certification to IP53 standards.

Pilot Tone Detection

An external pilot tone can be used to check the integrity of the cabling and audio signal path between the source and each QFlex loudspeaker, meeting any requirement of BS5839. Presence of the pilot tone can be checked in software or hardware. Input switching is also possible, should the primary input fail (pilot tone not detected), giving full system redundancy.

Sentinel SM1 System Monitor

For large networks, Sentinel System Monitor provides a complete system-wide fault monitoring and reporting solution for mission-critical applications. Built on a tried and trusted processing engine, Sentinel keeps a watchful eye on the audio system, and if required, any controlling PCs. Problems are reported both via relay contacts to the main monitoring panel in your system as well as being shown on Sentinel’s front panel display. Multiple Sentinels can even monitor each other and the same network simultaneously for systems that require dual-redundant monitoring.

AES Connectivity

System connectivity has also been greatly enhanced with QFlex now being capable of receiving and transporting digital audio via AES3 stream over long distances. A new VNET/AES break-in interface is available from Tannoy, allowing the VNET network and AES3 to be transported on the same CAT5 cable.

IP53 Certified

QFlex has been certified for water and dust protection to IP53 standard by leading test house, Intertek. This offers complete protection from the amount of dust that would interfere with the operation of the equipment and protection from sprayed water, and since the QFlex enclosure is constructed entirely from aluminium, corrosion is not an issue.

Constant Voltage / 100 V Interface

For applications utilising existing front end constant voltage systems, a new 100 V interface is available, allowing for integration into existing constant voltage systems by stepping down signal from 100 V / 70 V to line level.

All of these improvements are now available as standard with any QFlex system, except the constant voltage step-down interface and AES break-in interface which are customer specified options. These additional features reinforce the product’s position as the market-leading steerable loudspeaker solution.


A new member of the 3rd generation sarc digital signal processors is used to perform sophisticated processing for all QFlex's sixteen channels.


Each QFlex module incorporates 8 or 16 channels of high performance amplification.


The optional standalone sentinel SM1 system monitor provides complete system-wide fault monitoring and reporting for mission-critical applications.


The Windows based BeamEngine GUI generates beam steering algorithms for precise audience coverage.

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