Audio Expander

The Audio Expander is a small peripheral that enhances the BMA 360DX by offering local connectivity to all types of audio devices in the room—including microphones, line inputs and outputs, and USB audio

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Audio Expander

There are 4 professional quality flexible analog channels that can be independently configured as either input or output.

Key Highlights

  • As an input, the channel has a generously large gain range allowing it to connect to all types of professional and consumer level sources. For microphones that require it, clean +48 volt phantom power can be enabled.
  • As an output, a channel can be configured for either line level or mic level.
  • The USB-C connector provides driverless 2 channel USB Audio for Windows, Mac, and Linux computer systems, allowing easy BYOD connectivity.
  • ClearOne P-Link provides audio, control, and power connectivity from the BMA 360DX using a single CAT 6 cable.

Applications

  • Audio Conferencing
  • Video Conferencing

Workspaces

  • Conference rooms
  • Boardrooms
  • Courtrooms
  • Classrooms
  • Telemedicine Theaters

There are 4 professional quality flexible analog channels that can be independently configured as either input or output.

Part Number

  • 910-3200-306

Analog I/O
4 x Mic/Line Inputs or 4 x Mic/Line Outputs, selectable

  • 3.81 mm blue, male header

Frequency Response

  • 20 Hz – 22 kHz @ 0 dBu ,+/- 0.5 dB

Equivalent Input Noise (EIN)

  • 20 kHz BW, max gain, Rs = 150 Ω, -126 dBu

THD + Noise

  • 20 Hz – 22 kHz @ 0 dBu, line level, < 0.01 %
  • 20 Hz – 22 kHz @ -56 dBu, mic level, < 0.2 %

Dynamic Range

  • 20 Hz – 22 kHz @ 0dBu, > 105 dB

Crosstalk (Mic/Line)

  • Channel to Channel, stimulus at 20 dBu to receptor at -56 dBu, 1 kHz, < 0.05 % (or -66 dB) of stimulus signal at 1 kHz, 20 dBu (or 7.746 Vrms)

Input Impedance (Mic/Line balanced)

  • Balanced (line to ground), 2.2 kΩ, 1 %

Nominal Input Level

  • Adjustable: -56 dB to 0 dB, 7 dB step coarse gain

Maximum Input Level

  • +20 dBu

Phantom Power

  • Impedance: 6.81 kΩ, 48 V

Output Impedance (Mic/Line balanced)

  • Balanced, 95 Ω, 1 %

Nominal Output Level

  • -40 dBu or 0 dBu

Maximum Output Level

  • +20 dBU (when set for Line level)
  • -20 dBU (when set for Mic level)

USB Audio
Type: USB-C connector, Digital Audio

  • 2 Channels Stereo
  • 48 kHz, 24-Bit

Peripheral PoE
PoE In

  • RJ-45
    • IEEE802.3 bt compliant devices or equivalent,
    • PoE++ - Mode A, Mode B, and 4-pair Mode

Peripheral Bus
P-Link in and Out

  • Ports Type: RJ-45
  • P-Link Power: 56 V 36 W IEEE 802.3 at compliant devices or equivalent, Mode B
  • Cable: Solid core 23 AWG, factory terminated Cat 6
  • Distance: Normal distance mode: Up to 200 ft (60 m)

Power LED

  • Blue

Status LED

  • Blue
  • Red

Power Consumption
Power and Thermal

  • 100-240 VAC, 50/60 Hz. 120 VAC, 60 Hz @ 0.167 A
  • Thermal: 34.8 BTU/hr
  • 9.6 W typical
  • Operating Temperature: 14 °F/-10 °C to 104 °F/40 °C

Dimension and Weight
Dimensions

  • 6.77 x 6.69 x 1.73” (172 x 170 x 44 mm)

Product Weight

  • 3.1 lbs (1.4 Kg)

Shipping Weight

  • 4.2 lbs (1.9 Kg)

Operating Temperature

  • 14 °F/-10 °C to 104 °F/40 °C

Mounting

  • Brackets included for mounting under a table
 

Downloads

Documents

 

 

Audio Expander FAQs

What is the Audio Expander and what does it do?

The Audio Expander is a versatile peripheral device designed to enhance the BMA 360DX by providing local connectivity for various audio devices in your room. It features 4 professional-quality analog channels and allows seamless connection to microphones, line inputs/outputs, and USB audio devices, making it perfect for conference rooms, boardrooms, and other professional spaces.

What types of connections does the Audio Expander support?

The Audio Expander offers multiple connectivity options:

  • 4 flexible analog channels (configurable as inputs or outputs)
  • USB-C connection for driverless audio on Windows, Mac, and Linux systems
  • ClearOne P-Link connectivity via CAT 6 cable
  • Professional-grade balanced inputs and outputs
  • +48V phantom power for professional microphones

Is the Audio Expander compatible with my existing computer system?

Yes! The Audio Expander features driverless USB Audio compatibility with Windows, Mac, and Linux operating systems through its USB-C connector. This makes it ideal for BYOD (Bring Your Own Device) environments and ensures quick, hassle-free setup for any user.

What are the input/output capabilities of the Audio Expander?

Each of the 4 analog channels can be independently configured as either an input or output:

  • As inputs: Supports both professional and consumer-level sources with adjustable gain ranges
  • As outputs: Can be configured for either line level (+20 dBu max) or mic level (-20 dBu max)
  • Features high-quality audio specifications with 20 Hz – 22 kHz frequency response
  • Provides clean +48V phantom power for professional microphones when needed