Phoenix Audio Quattro3 PSTN MT302 USB and Telephone Conference Speakerphone
The Phoenix Quattro3 MT302 (Q3) is a high-quality conference speakerphone thatwill turn any room into a professionally sounding conference room.It has an exceptionally large pickup and broadcasting range, yet issmall in size and discrete in design.
The Q3 MT302 is an ideal USB and Telephone solution for:
- Small offices or home offices
- Small to very large conference rooms
- Classrooms and training rooms
The Q3 MT302 utilises multiplemicrophones, a uniquely designed speaker, and a powerful DSP toachieve commanding performance. The Q3 can easily be pairedwith an interface module to enable it to communicate with differenttypes of infrastructures.
- Four microphone beam forming array
- Full duplex communication
- Echo cancellation
- Noise suppression
- De-reverb
- Automatic gain control
- Daisy chainable
- Single source daisy chain powering
- Bridging between USB and PSTN
- Internal battery
- Fully functional dial pad with backlit LCD screen
- Interchangeable interface modules
- Durable aluminum casing
- LED lit control buttons
Whats included in the MT302
- USB cable
- International power supply adaptor
- Daisy chain cable (Ethernet)
- PSTN phone cable
- Installed dial pad with backlit LCD screen
- Interchangeable wire slot cover
- User manual
The MT302 model has both a USB and telephone interface. TheUSB outlet allows you to connect to a computer for any VoIPsessions such as Skype, Vidyo, etc, while the telephone interface onthis model allows you to connect to any analog PSTN phone linewith a RJ11 cable. 
The Quattro3 USB and Telephone (MT302) connects via:
USB to your computer ‐ this connection is for any session using your computer, such as Voice Over IP applications (Skype, Microsoft Lync, etc.). >Telephone line – this connection is done via RJ11 connector and a telephone cable directly to your telephone infrastructure and is for any standard PSTN (analog phone) telephone call.
Technical Specifications
Connections
- UBS interface (mini B connector)
- 3.5mm external loudspeaker and microphone jack
- Volume Up / Volume Down buttons
- Daisy chain expandability of up to 15 units
- Power Consumption: 5V 500mA peak through USB and wall mount AC/DC converted.
Audio
- Frequency Response 50Hz – 16 KHz
- Low latency (10ms)
- Broadcast level (peak): 92dB SPL @1m (5 watts RMS)
- Three-way bridging capability
- Noise cancellation > 10dB (without pumping noise)
- 100% full duplex – no attenuation (in either direction) during full duplex
- High-end performance confirms to ITU-T G.167
- Acoustic echo cancellation > 40dB with conversion speed of 40dB/sec
- Residual echo is suppressed to the environment noise level, preventing artificial ducking of signal
- 4 high-quality directional microphones
- Direction-finding algorithm (determines the presence and direction of a speaker)
- Beamforming algorithm (forms and directs audio beams towards a defined direction
- Automatic voice-level adjustment (AGC)
Dimensions
- Dimension: 7” diameter, 1-7/8” height
- Weight: 2 lbs
- Metal case and metal grill mesh for high RFI immunity and product durability
Software
- Plug-and-Play - No installation or drivers
- Audio Setup Utility is available for Windows
- The setup utility helps monitor the audio input and output level but is not required
- Recording utility is available for Windows
- Recording utility allows you to record conversations to your computer via the device
- Operating systems: Windows 98 and up / Linux / MacOS
Battery
7 hours of battery talk time with secondary interface
Accessories
- USB cable
- International AC adapter
- Daisy chain cable (Ethernet)
- Telephone cable
