Phoenix Audio MT454-PSTNP Octopus USB Base Unit with Analog Telephone Interface and Power Amplifier

SKU: PHMT454PSTPA MFR: MT454-PSTN-PA
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Key Features

  • Enhance audio conferencing with the MT454-PSTNP's superior sound quality.
  • Experience seamless connectivity with USB and analog telephone interface options.
  • Use the built-in power amplifier for clear and robust audio output during meetings.
  • Easily integrate this conferencing mixer into existing VoIP systems for better calls.
  • Customize your sound with selectable phantom power for optimal microphone performance.
  • Enjoy versatile audio input options with XLR connectors for professional setups.
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Special Order Item?Estimated to Ship: 08/08/2025
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Phoenix Audio MT454-PSTNP Specifications

  • Inputs: Designation

    Microphone (mixer inputs), Auxiliary, Sound Reinforcement

  • Inputs: Number of inputs

    4 per unit

  • Inputs: Phantom: User selectable

    3V, 24V or none (for Line inputs)

  • Inputs: Connectors

    XLR

  • Inputs: Input Impedance (load)

    3V Phantom: 2K Ohms
    24V Phantom: 590 Ohms
    No Phantom: 2K Ohms

  • Inputs: Maximum input level

    1.8V/Gain

  • Inputs: Gain

    0dB to 42dB in 6dB steps

  • Inputs: Frequency response

    20 Hz - 16 KHz

  • Audio Out: Connectors

    RCA and XLR (the XLR is re-assigned as Link Up when the unit is configured as Slave)

  • Audio Out: Level

    Line or Mic level (user selectable)
    For Line level: 1.8Vpp Max
    For Mic level: 90mVpp Max
    Link Up level: Line (1.8Vpp fixed)

  • Audio Out: Impedance

    25 Ohms

  • Audio Out: Frequency response

    20 Hz - 16 KHz

  • Audio (Far-End) In: Connector

    RCA

  • Audio (Far-End) In: Impedance

    100K Ohms

  • Audio (Far-End) In: Level

    1.8Vpp

  • Far-End (Speaker) out: Connector

    2pin terminal block

  • Far-End (Speaker) out: Impedance

    25 Ohms

  • Far-End (Speaker) out: Level

    1.8Vpp Max

  • Com Port

    RS232 protocol available upon request

  • Power

    5V, 200mAmp (through the USB connector)

  • Dimensions (L x W x D)

    8 x 16.5 x 1.75" / 203.20 x 419.10 x 44.45mm

  • Weight

    5.65lbs / 2.56kg

  • UPC Code

    854969001161

About Phoenix Audio MT454-PSTNP

How can you enhance your conference room's audio experience The MT454-PSTNP Octopus USB Base Unit with Analog Telephone Interface and Power Amplifier is the answer. This advanced audio conferencing mixer boasts a robust Digital Signal Processor (DSP) and proprietary technology that ensures crystal-clear audio delivery. It achieves this by automatically monitoring and mixing audio inputs, simplifying the setup and usage process.

The Octopus mixer is equipped with four versatile microphone inputs, each of which can be alternatively used as an auxiliary input or for sound reinforcement purposes. This flexibility allows you to customize the audio setup to suit any room configuration, whether you're mounting speakers and microphones on the ceiling, walls, or tabletops.

Key features of the Octopus include:

- Echo Cancellation: Eliminates audio feedback for uninterrupted communication.
- Noise Suppression: Reduces background noise, ensuring clear audio output.
- Full Duplex Communication: Allows simultaneous speaking and listening for natural conversations.
- De-reverb Filtering: Minimizes reverberation in spacious rooms for clearer sound.
- Automatic Gain Control: Adjusts microphone sensitivity for consistent volume levels.
- Phantom Power Supply: Offers both 3V and 24V options to accommodate a variety of microphones.
- Beamforming Microphone Array Technology: Selects the optimal microphone input in real-time for superior audio mixing.
- Bridging: Facilitates three-way communication across different connection sources, such as telephone, VoIP, and video codecs.

The Octopus MT454-PSTNP-PA model comes standard with USB and RCA connectors, enabling seamless VoIP and video codec integration. It also features an analog phone (PSTN) interface and a powerful 40-watt, 4-output amplifier to drive speakers efficiently. An additional option includes a digital telephone interface for even more connectivity possibilities.

This unit is the ideal USB and power amplifier solution for various settings, including:

- Small to very large conference rooms
- Classrooms and training facilities
- Courtrooms and auditoriums
- Webinars and web conferences

Compatibility is broad, with support for PC (Windows and Linux) and Macintosh (MAC OS) systems. Connection options for the Octopus USB Base Unit with Power Amplifier (MT454-PSTN-PA) include:

- Digital Output: USB connection to your computer for VoIP applications (e.g., Skype, Vidyo).
- Analog Output: RCA, XLR, and Phoenix speaker output connectors for versatile speaker setups.
- Speakers: Spring-clip connectors for straightforward speaker installation.
- Telephone Line: RJ11 connector and telephone cable for direct integration with your telephone infrastructure for PSTN calls.

Performance-wise, the Octopus delivers high-definition audio through its full duplex technology, making it a true HD audio solution for your conference space.

Simplicity is at the heart of the Octopus design, with an easy installation process and automatic mixing controls that let you "set it and forget it."

Expandability is also a key feature, with unlimited daisy chain capability to accommodate any room size without compromising on input availability.

Flexibility in connectivity and mounting options makes the Octopus a versatile choice for enhancing your audio conferencing capabilities, ensuring that every participant can hear and be heard with exceptional clarity.

Phoenix Audio MT454-PSTNP Features

  • Advanced audio conferencing mixer with Digital Signal Processor (DSP) for clear audio delivery
  • Four versatile microphone inputs, each convertible to auxiliary or sound reinforcement channels
  • Key features include Echo Cancellation, Noise Suppression, Full Duplex Communication, and Beamforming Microphone Array Technology
  • Seamless integration with VoIP and video codecs via standard USB and RCA connectors
  • High-definition audio solution with full duplex technology for superior conference room performance
  • Unlimited daisy chain capability and flexible mounting options for versatile room setup

Key Features

  • Enhance audio conferencing with the MT454-PSTNP's superior sound quality.
  • Experience seamless connectivity with USB and analog telephone interface options.
  • Use the built-in power amplifier for clear and robust audio output during meetings.
  • Easily integrate this conferencing mixer into existing VoIP systems for better calls.
  • Customize your sound with selectable phantom power for optimal microphone performance.
  • Enjoy versatile audio input options with XLR connectors for professional setups.

What's in the box:

  • Phoenix Audio MT454-PSTNP Octopus USB Base Unit with Analog Telephone Interface and Power Amplifier
  • USB Cable
  • International Power Supply Adaptor
  • 2x Rack Mount Ears
  • Male Phoenix Speaker Output Connector
  • Dial Pad
  • AC Power Jack (110V to 220V)
  • User Manual
  • Phoenix Audio Warranty