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XO2 Audio Management System


  • 2 inputs and 6 outputs - native processing now runs at 96k resulting in wider bandwidth (over 30kHz)
  • Improved converters - lower noise and improved distortion figures
  • Legendary XTA look ahead limiters with automatic and manual time constant facilities
  • Stylish Funktion One look
  • Extended memory capacity - user memories now extended from 9 to a maximum of 255
  • Bigger 2x24 character display with new low profile buttons
  • Auto switching power supply works across the world on all voltages


The XO2, 2-in 6-out audio management system from XTA in collaboration with Funktion One, offers advanced processing capabilities and improved performance along with extra features as standard.

  • Extended processing capabilities - 9 (previously 5) full bandwidth parametric bands available on every output all switchable between PEQ, high and low shelving responses.
  • Further extended processing capabilities - crossover filters on each output now offer 48dB/Oct. responses, on top of the previously available 12 to 24dB/Octave options. A gentle 6dB/Octave roll-off response is also now included.
  • Flexible routing matrix available - in addition to standard fixed configurations such as 2 x 3 way (standard configs are still implemented) any output may be fed from any input or the sum of inputs. Edit buttons show routing instantly when pressed.
  • Delay memory allows for up to 650mS from any input to any output - extra fine delay resolution on outputs for driver alignment, in 30nS (0.1mm) steps!
  • Library manager software available for design of OEM presets - design your crossover live whilst connected to the unit and lock out any parameters as required to prevent end user adjustment/viewing. No practical limit to the number of presets that may be stored (over and above the user memories).  


Inputs: 2 electronically balanced  

Impedance: > 10k ohms.  

CMRR: > 65dB 50Hz - 10kHz


Outputs: 6 electronically balanced

Source Imp: < 60ohms

Min. Load: 600ohm

Max. Level: +20dBm into 600 ohm  


Frequency Resp: ±1/2dB 20Hz-20kHz -3dB @ 32kHz  

Dyn. Range: > 116dB 20Hz-20k unwtd

Distortion: %LT% 0.02%@1kHz +18dBm  

Maximum Delay: 650 mS

Min Step Size: 0.3 µS

Input Gain: +6dB to -40dB in 0.1dB steps

Output Gain: +15dB to -40dB in 0.1dB steps and mute


Parametric Equalisation 9 Sections per Output  

Filter Gain: +15dB to -30dB in 0.1dB steps 

Freq. Range: 19.7Hz - 32kHz, 1/36 octave steps

Filter Q / BW: 0.4 to 128 / 2.5 to 0.008 (Sections switched to shelving response)

Low frequency: 19.2Hz - 1kHz

High frequency: 1kHz - 32kHz

Shelf gains: ±15dB in 0.1dB steps


High and Low Pass Crossover Filters Filters: 1 of each per output

Freq. Range HPF: 10Hz - 16kHz, 1/36 octave steps

Freq. Range LPF: 35Hz - 22kHz, 1/36 octave steps

Responses: 1st Order 6dB/Oct.

                    Bessel/Butterworth 18dB/Oct.

                    Bessel/Butt./Linkwitz-Riley 12/24/48dB/Oct.


Limiters Look ahead output limiters:

Threshold: +22dBu to -10dBu  

Attack time: 0.3 to 90 milliseconds

Release time: 2/4/8/16/32 x Attack time Automatic time constant facility also included


Latency: 1.5mS (analogue in - analogue out @ 96kHz)


Display: 2 x 24 Character LCD


Input meter: 2 x 4 point - 24dB to digital clip

Output meter: 6 x 4 point - 24dB to +4dB into limit.



Inputs: 3 pin female XLR  

Outputs: 3 pin male XLR

External: 9 pin DEE connector (RS232)

Power: 3 pin IEC  


Power: 60 to 250V ±15% @ 50/60Hz

Consumption: < 30 watts

Weight: 3.3kg. Net (4.7kg. Shipping)

Size: 1.75''(1U) x 19'' x 11.8'' (44 x 482 x 300mm) excluding connectors

* Only operational when AudioCore compatibility option has been included
** Extended EQ Pack adds the following response types: Band pass; Notch; All pass; Phase; Elliptical Hp/Lp; VariQ (Resonant)

Due to continuing product improvement the above specifications are subject to change.

Units will be supplied in boxes of 5, wrapped, and with foam inserts, ready for OEM packaging.   
They may also be supplied in single plain brown boxes, wrapped and with foam inserts.

User Manual
A generic manual will be issued on disc upon completion of the product specification for editing as required. XTA will not include individual manuals with each unit package.
Extended EQ Pack
A suite of additional EQ responses to facilitate precise crossover designs and construct higher order crossover filters – see Key Features section for more details.

Technical Drawings:

XO2 Audio Management System Technical Drawing
All dimensions in mm and inches © Copyright Funktion One Research Ltd 2000 - 2024

Downloadable Files:


Product in Action: