The Extron AXI 44 AT is a quarter rack width audio interface for integrating four mic/line sources onto a Dante®-enabled audio system. It features four mic or line inputs on 3.5 mm captive screw connectors, with switchable 48 volt phantom power. Input select, gain, and phantom power settings are controllable from the front panel, via DSP Configurator Software, or by SIS commands via USB. The AXI 44 AT also features four line level outputs for routing four Dante channels from the network to the audio system. The AXI 44 AT interfaces with any Dante-equipped audio processor, such as an Extron DMP 128 Plus AT, over a standard local area network, and can be powered via PoE. This allows a single network cable connection for bidirectional audio and power from a central equipment rack.

Easily Provide Local or Remote Connectivity into Audio Systems

The AXI 44 AT accepts four analog mic/line sources, and digitizes them at 24-bit for output via Dante. It is connected into a Dante network over Ethernet using standard IP networking protocols. This avoids the effort and expense of pulling long analog cables back to the rack. With its small, quarter rack form factor, the AXI 44 AT can be easily mounted under a desk, in a lectern, or in millwork, as well as in a rack.

For additional integration convenience, AXI 44 AT interfaces can be remotely powered via Power over Ethernet - PoE, using Extron XTP PI 100 or XTP PI 400 power injectors, network switches equipped with PoE, or midspan PoE injectors.

The AXI 44 AT can accept any four audio channels from the Dante network and deliver them through its four line outputs. Four channels of high quality digital audio can be routed from local or remote systems via Dante, and converted to line level analog audio.

Dante Audio Networking

Dante enables audio system scalability over a local area network using standard Internet protocols. The family of Dante-enabled products from Extron work together as part of a complete networked audio system solution and integrate with other Dante-enabled products to create efficient, scalable system designs. They accommodate a wide range of audio routing needs in a variety of applications.

Setting up a network of Extron Dante-enabled products, including the AXI 44 AT, requires Dante Controller software. Dante Controller is used to easily assign an output from an AXI 44 AT to an input on a Dante-equipped device, such as the Extron DMP 128 Plus AT. Similarly, an output from a Dante-equipped device can be assigned to appear at one of the line level outputs on an AXI 44 AT.

Features

AXI 44 AT
Audio
   Gain Unbalanced output: -6 dB, balanced output: 0 dB
   Frequency response 20 Hz to 20 kHz, ±0.3 dB
   THD + Noise <0.02 @ 1 kHz at maximum level
   S/N 
      Analog In to Digital Out 100 dB, 20 Hz to 20 kHz, at full-scale output (unweighted)
      Digital In to Analog Out 115 dB, 20 Hz to 20 kHz, at maximum balanced output (unweighted)
   Crosstalk <-90 dB @ 1 kHz, fully loaded
   Output Attenuation -100 dB to 0 dB (in 1 dB steps)
Audio input
   Number/signal type 4 mono mic/line, balanced/unbalanced
   Connectors (2) 3.5 mm captive screw connectors, 6-pole
   Impedance >10k ohms, balanced/unbalanced
   Nominal level +4 dBu when level is set to 0 dB gain, adjustable from -60 dBu to +4 dBu
   Maximum level >+21 dBu (at rated THD + N) when input gain is set to 0 dB
   Equivalent input noise <-120 dBV (1 µVrms) at 40 dB gain
   Input gain adjustment 0 dB to +42 dB, 3 dB steps, adjustable per input
   CMRR >65 dB @ 1 kHz
   Mic phantom power +48 VDC ±10%, can be switched on or off per input
    NOTE     0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu; All nominal levels are at ±10%
Audio output
   Number/signal type 4 mono (or 2 stereo), balanced/unbalanced
   Connectors (2) 3.5 mm captive screw connectors, 6-pole
   Impedance 50 ohms unbalanced, 100 ohms balanced
   Nominal level -10 dBV (316 mV) or +4 dBu (1.23 V)
   Maximum level (Hi-Z) >+21 dBu balanced or >+15 dBu unbalanced
AT ports — audio transport
   Transmission Dante/AES-67, software selectable
   Connector 1 RJ-45 connector to Dante interface
   Inputs 4 channels Rx (2 flows, unicast or multicast)
   Outputs 4 channels Tx (2 flows, unicast or multicast)
   Audio format Uncompressed, 24-bit, selectable at 44.1, 48, 88.2, or 96 kHz
   Latency Deterministic, based on user selection: 1.0 ms (default), 2.0 ms, 5.0 ms
General
   Power input requirements  12 VDC or Power over Ethernet (PoE 802.3at)
   Power supply (optional) External
Input: 100-240 VAC, 50-60 Hz
Output: 12 VDC, 1 A, 12 watts
   Power consumption 
      Device  7.0 watts
      Device and power supply  9.3 watts
   PoE power injector (optional) XTP PI 100
      Power consumption 
         Device  8.5 watts
         Device and power injector 11.9 watts
   Ambient temperature/humidity Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
   Cooling Convection, vents
   Thermal dissipation 
      Power supply (optional) 
         Device  17.2 BTU/hr
         Device and power supply  25.1 BTU/hr
      PoE power injector (optional) XTP PI 100
         Device  22.4 BTU/hr
         Device and power injector 34.0 BTU/hr
   Mounting 
      Rack mount Yes, with optional 1U high rack shelf
      Furniture mount Yes, with optional under-desk mounting kit
   Enclosure type  Metal
   Enclosure dimensions 1.66" H x 4.32" W x 6.00" D (1U high, quarter rack wide)
(43 mm H x 110 mm W x 153 mm D)
   Product weight  0.65 lbs (0.3 kg)
   Regulatory compliance CE, C-Tick, c-UL, FCC Class A, ICES, UL, VCCI Class A
Complies with the appropriate requirements of RoHS, WEEE