ClearOne PSR1212 Professional Conferencing

ClearOne PSR1212 Professional Conferencing
ClearOne PSR1212 Professional Conferencing
The PSR1212 is an advanced 12x12 digital matrix mixer that provides advanced audio processing, microphone mixing and routing for local audio reinforcement. It features 32 user-definable presets to quickly adapt to a variety of sound reinforcement and room-combining applications.
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General Information

Category:Audio Conferencing EquipmentManufacturer:Clearone
Categorization By Manufacturer:Professional ConferencingModel:910-151-900

The PSR1212 is an advanced 12x12 digital matrix mixer that provides advanced audio processing, microphone mixing and routing for local audio reinforcement. It features 32 user-definable presets to quickly adapt to a variety of sound reinforcement and room-combining applications.

The sophistication and adaptability of the PSR1212 allows it to control and enhance many sound applications. Following are nine applications where the PSR1212 forms the centerpiece of a high-quality sound reinforcement or room-combining system. There are numerous other applications where the PSR1212 can control and enhance the audio experience. The principles used in the applications outlined here carry over into other applications.


  • Hotels and Convention Centers
  • Auditoriums
  • Stadiums
  • Conference Rooms
  • Houses of Worship
  • Theaters

Brief Info

- Multi-unit functionality in single rack
- 12x12 digital matrix mixer integrates multiple audio sources
- 100% digital signal processing for clean, clear audio
- 32 programmable presets for instant configuration changes
- 12 outputs allow flexibility in routing audio to multiple destinations
- 8-channel automatic microphone mixer with four mixers across bus
- Customizable inputs, outputs and processing parameters for enhanced local audio

Superior Audio Performance & Coverage

  • 12x12 matrix with level control at the cross points
  • Eight-channel automatic microphone mixer with four line inputs
  • Eight audio processing buses can be placed anywhere within the matrix mixer audio path; each bus has 15 filters
  • Eight input channels are programmable for input gain, configurable audio processing, muting and automatic mixer
  • Internal room-combining capabilities
  • Customizable microphone inputs gate on and off as desired
  • Automatic level control

Configuration Flexibility

  • 32 programmable presets allow for instant configuration changes and quick adaptability to a variety of sound reinforcement and room-combining applications
  • Enables grouping of mics across four automatic mic mixers within a single PSR1212
  • Program, operate and diagnose with a connected PC or other serial remote control
  • Any combination of inputs can be routed to any combination of outputs

System Control

  • Digital audio and control bus allows up to eight PSR1212s to be connected and controlled as a single unit
  • All interconnected devices can be accessed, controlled and programmed via a single RS-232 connection
  • Basic operational functions can be controlled remotely with the optional ClearOne Select Control Panel or Volume Control Panel
  • Macro scripting language enables sophisticated control without the need for an expensive external control system

The digital matrix mixer with audio processing shall incorporate microphone mixing, matrix mixing, and signal processing in a single rack space unit.

The matrix mixer shall have 12 inputs and outputs: four line level inputs, eight microphone/line selectable inputs, and 12 line level outputs. Each mic/line input shall have four selectable filters, which
include all-pass, high-pass, lowpass, and notch; automatic gain control; phantom power; and automatic microphone mixing capabilities. The unit shall have four internal and four global automatic
microphone mixers, each with fully adjustable parameters. The microphone mixer shall use PA adaptive, adaptive ambient, chairman override, first mic priority, last mic mode, number of open mics.

The matrix mixer shall have a 12x12 internal matrix mixer with attenuation at every cross point in .5dB steps. Any input can be routed to any output or multiple outputs. The matrix shall consist of 12 analog inputs/outputs, 12 digital inputs/outputs from the network bus, and eight inputs/outputs from the processing blocks.

Signal processing shall be provided by eight assignable processing blocks, each with 15 programmable filters, delay, and compression. The processing blocks shall include such filters as high pass, low pass, all pass, low shelving, high shelving, notch, parametric EQ, CD horn, Bessel crossover, Butterworth crossover, and Linkwitz-Riley crossover. Filter setup shall be real-time. The unit shall include a signal generator for pink noise, white noise, and tone sweep capabilities, and shall be assignable to any input on any linked unit. Signal delay is adjustable up to 500ms.

The matrix mixer shall have up to 32 presets. Multiple presets can be used simultaneously without interruptions or interference with other presets. The unit shall feature a macro recorder to create up to
255 macros for simple remote control management of the system.

The unit shall have a 12-channel bi-directional audio bus to pass audio, system control, and four channels of NOM for four sub-mixers to other units. The maximum distance between linked units shall
be 80 feet (24 meters). Up to eight units can be linked for up to 32 line inputs and 64 mic inputs.

System settings shall be saved in the unit, and shall include password protection.

The unit shall be set up and operated with intuitive software that allows complete configuration of the system. Additional control shall be handled via custom setup software, RS-232 protocol with
communication speeds up to 57,600 baud, RS-485 control panels, or contact closure.

The unit shall have the ability to meter a group of inputs or an entire signal flow. Meters shall be provided on inputs, processing, and outputs for echo return loss, echo return loss enhancement, and
gate parameters.

The unit shall have a frequency response of 20Hz to 20kHz and a signal to noise ratio of 80dB re 0dBu, A Weighted.

The unit shall have an internal power supply that automatically adjusts between 100-240VAC of power input. The unit shall comply with FCC, CSA, IC, CE, NOM, ACA, SABS, VCCI, and JATE

The ClearOne PSR1212 is specified.

PSR 1212 Manual (PDF - 2428 KB)
PSR 1212 Whitepaper (PDF - 1970 KB)
CAD Drawings
PSR 1212 CAD (PDF - 47 KB)
PSR 1212 CAD (ZIP - 1938 KB)
Software Downloads
G-Ware 3.5.0 (EXE - 12511 KB)
G-Ware 4.5.0 (ZIP - 17146 KB)
G-Ware 4.6.0 (EXE - 18510 KB)
G-Ware 5.0.0 (ZIP - 21307 KB)
G-Ware 5.0.1 (ZIP - 213015 KB)
G-Ware 5.0.6 (ZIP - 20601 KB)
PSR 1212 Datasheet (PDF - 706 KB)

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  • ClearOne has been in the business for more than 20 years and is the worlds leading provider for audio conferencing technologies and solutions. The company dominates the professional conferencing space with more than 54% of global market share. ClearOnes products enhance presentation, collaboration, multimedia applications and distance communications while creating natural environments for efficient and effective personal/group communication.
    Some of the popular products and solutions offered include premium conferencing, tabletop conferencing, personal conferencing, AV distribution and control, conferencing microphones and media carts. The CHATAttach 150 Personal/Group speakerphone for medium and large conference rooms, CHAT 50 Personal Conferencing, CHAT 150 USB Personal Conferencing and CHAT 170 Personal Conferencing Speakerphone are among the best products.
    ClearOne is committed to provide the highest quality products ranging from office desktop conferencing to large professional conferencing venues like training centers, courtrooms, auditoriums and boardrooms.

  • Specifications

    Audio Performance

    Conditions: Unless otherwise specified, all measurements are performed with a 22 Hz to 22kHz BW limit (no weighting)
    Frequency Response: 20 Hz to 20 kHz ±1 dB
    Noise (EIN): -126 dBu, 20 kHz BW, max gain
    THD+N: <0.02%
    SNR: 80 dB re 0 dBu, (A-weighted)
    Dynamic Range: 100 dB (A-weighted)
    Crosstalk <-91 dB re 20 dBu @ 20 kHz channel to channel

    Auto Mixer Parameters

    Number of Open Microphones (NOM)
    PA Adaptive Mode
    First Mic Priority Mode
    Last Mic Mode
    Maximum # of Mics Mode
    Ambient Level
    Gate Threshold Adjust
    Off Attenuation Adjust
    Hold Time
    Decay Rate

    Matrix Mixing Parameters

    32 x 32 matrix
    12 analog in/out
    12 expansion bus in/out
    8 assignable processing blocks in/out

    Assignable Processing Blocks


    All pass
    Low pass
    High pass
    Low shelving
    High shelving
    Parametric EQ
    CD Horn
    Delay adjustable up to 500 ms

    Microphone Input Configuration

    Input Gain Adjust
    Mic or Line Level
    Phantom Power on/off
    Echo Cancellation on/off
    Noise Cancellation on/off

    All Pass
    Low Pass
    High Pass
    Mute on/off
    Chairman Override on/off
    AGC on/off
    Speech Leveler on/off
    Auto Gate/Manual gate
    Adaptive Ambient on/off

    Mic/Line Inputs 1-8

    Push-on terminal block, balanced, bridging
    Impedance: 5 k
    Nominal Level: adjustable -55 dBu, -25 dBu, 0 dBu
    Maximum Level: -35 dBu, -5 dBu, +20 dBu
    Phantom Power: 24 V, selectable

    Line Inputs 9-12

    Push-on terminal block, balanced, bridging
    Impedance: >10 k
    Nominal Level: 0 dBu
    Maximum Level: 20 dBu

    Outputs 1-12

    Push-on terminal block, balanced
    Impedance: 50
    Nominal Level: 0 dBu
    Maximum Level: 20 dBu

    Expansion Bus In/Out

    Proprietary Network
    RJ-45 (2), 115.2 kbps, 110 k impedance
    Category five twisted-pair cable 80' (24 meters) maximum cable length between any two XAP 800s, XAP 400s, or PSR1212s


    DB-9 female 9,600/19,200/38,400 (default)/57,600 baud rate; 8 bits, 1 stop, no parity
    Hardware flow control on (default)/off


    DB25 female A/B (2) Inputs A/B: active low (pull to ground) Outputs A/B: open collector, 40 VDC max, 40 mA each +5 VDC pins (2) (300 mA over-current protected)

    Remote Panels A/B

    4-pin push-on terminal block
    RS-485 proprietary protocol
    Category five twisted-pair cable
    1 pair data, 1 pair power and ground +15 VDC
    (300 mA over-current protected)

    Set-up Software


    Power Input Range

    100-240 VAC; 50/60 Hz

    Power Consumption

    30 W typical

    Dimensions (L x D x H)

    17.25" x 10.25" x 1.75"
    43.8 x 26 x 4.5 cm


    7 lb/3.2 kg dry
    12 lb/5.5 kg shipping

    Operating Temperature

    32 to 100° F/0 to 38° C


    15% to 80%, non-condensing



    Optional Accessories

    Volume Control Panel
    Select Control Panel

    Part Number

    910-155-01 PSR1212 Digital Matrix Mixer

    Customer Testimonials

    "Excellent for collaborative meetings through Webex or in person. Small and easy to transport. Great for capturing notes for an entire group. Fabulous technology!"

    View All Testimonials >    
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