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Beachtek DXA-ALEXA Preamplifier for ARRI ALEXA Mini Camera

Mfr. Code: DXA-ALEXA
Estimated to Ship – 3-7 days
Transform your ARRI ALEXA Mini or RED DSMC2 to a fully featured mini doc camera, including on-board audio capabilities, with this DXA-ALEXA Preamplifier from Beachtek.
Key Highlights
  • Provide on-board audio to your camera
  • Ideal for ARRI ALEXA Mini & RED DSMC2
  • Dual gain controls


The Beachtek DXA-ALEXA Preamplifier provides all the features you need to expand your ARRI ALEXA Mini camera with on-board audio. The DXA-ALEXA offers dual gain controls, phantom power, level indicators, and headphone monitoring. Tri-color LED level indicators make it a snap in setting the proper recording levels.

These ultra low-noise preamplifiers provide exceptional performance with over 100dB in dynamic range. The (2) XLR inputs are transformer-balanced for galvanic isolation and high common mode rejection.

The output is a balanced 5-pin XLR that connects directly to the 5-pin Lemo input on the camera via an optional cable. There is also an auxiliary mic level output via an unbalanced stereo mini-jack so it can be connected to a variety of other recording gear.

Power is supplied to the DXA-ALEXA from your rig via a 2-pin Lemo connector.

With the included bracket, you can mount the preamplifier in several ways to the camera cage. When using the ARRI ALEXA Mini camera cage, you can mount it under the handle, side bracket or anywhere with an optional V-Lock. The bracket has captive thumb screws to easily add or remove the preamplifier from the camera. The base of the preamplifier has three threaded 1/4"-20 holes to also allow it to be mounted to the rails via a third party rail bracket.

The DXA-ALEXA is also ideal for use with other mini cinema cameras such as the RED DSMC2 models.

What's in the Box

  • Operating Manual
  • Bracket
  • Beachtek DXA-ALEXA Preamplifier


Key Highlights

  • Provide on-board audio to your camera
  • Ideal for ARRI ALEXA Mini & RED DSMC2
  • Dual gain controls
  • Phantom Power
  • Auxiliary mic level output


Audio Accessory Type:

Inputs & Outputs

Audio I/O:
2 x Audio Input - XLR3
1 x Audio Output - XLR5 (Balanced +4dBu)


Green: -40dBu to -16dBu
Red: Over +4dBu
Tri Color LED
Yellow: -16dBu to +4dBu
Harmonic Distortion:
0.012% (+4dBu Output Level, Lo Gain Setting)
0.06% (+4dBu Output Level, Hi Gain Setting)
Frequency Response:
50Hz to 20kHz, +/-0.5dB
Output Clipping Level:
Line: +25Bu
Mic: -5dBu
High Gain ~60dB
Lo Gain ~40dB
Channel Separation:
80dB at 1kHz (+4dBu Output Level, Hi Gain Setting)


Power Input:
DC - External DC Input Jack (12-16V), Pin 1 = (-), Pin 2 = (+)


Phantom Power:
Yes - 48V
Dynamic Range:
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