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Beachtek DXA-PRE Two-Channel Preamplifier for Cinema Cameras

BH #BEDXAPRE • MFR #DXA-PRE
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Beachtek DXA-PRE Two-Channel Preamplifier for Cinema Cameras
Key Features
  • Record Quality Audio on Cinema Cameras
  • Works with Mirrorless/DSLR Cameras
  • Low-Noise Preamps, Up to 60 dB of Gain
  • 2 XLR Balanced Mic/Line Ins, 48V Phantom
Connect professional XLR-equipped microphones or line-level signals to your RED, ALEXA, and other cinema cameras or DSLR/mirrorless camera with the compact, rugged, and easily mountable Beachtek DXA-PRE, a two-channel preamplifier with phantom-powered XLR inputs. Its powerful preamps offer up to 60 dB of gain while delivering low noise and a wide 100 dB dynamic range. Thanks to its integrated shoe mount, the supplied brass mounting foot, and the included V-CLICK quick-release plate, the DXA-PRE accommodates an array of mounting configurations, including rail mounting with an optional third-party accessory.
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Beachtek DXA-PRE Overview

Cinema-Quality Audio in a Compact Package
Connect professional XLR-equipped microphones or line-level signals to your RED, ALEXA, and other cinema cameras or DSLR/mirrorless camera with the compact, rugged, and easily mountable Beachtek DXA-PRE, a two-channel preamplifier with phantom-powered XLR inputs. Its powerful preamps offer up to 60 dB of gain while delivering low noise and a wide 100 dB dynamic range. Thanks to its integrated shoe mount, the supplied brass mounting foot, and the included V-CLICK quick-release plate, the DXA-PRE accommodates an array of mounting configurations, including rail mounting with an optional third-party accessory.

Each channel features a balanced XLR mic/line input with switchable 48V phantom power for condenser mics, low/high gain settings, and a trim knob. An easy-to-read LED meter helps you keep track of your levels. Select mono or stereo for the output signal.

Note:
The BT-PWR power cable (not included) is required to connect the DXA-PRE to any D-Tap power source.
Cinema-Quality Sound
  • Easily connect professional, balanced XLR microphones or wireless devices to your camera for cinematic sound.
  • The powerful low-noise preamplifiers with phantom power give you 100 dB of dynamic range for exceptionally clean audio.
  • The two XLR inputs are transformer-balanced for galvanic isolation and high common-mode rejection.
  • The DXA-PRE accepts mic- and line-level signals for versatility.
Audio Bracketing—Set Up a Second Channel for Backup
  • A useful feature, audio bracketing enables you to have a backup channel is recorded at a lower level—when using a single mono microphone.
  • This gives you a safety track in case the primary channel gets distorted from an overly hot input.
  • This also effectively eliminates the need for any limiters that can add their own type of distortion.
Snap On and Go—Compact and Easily Mountable
  • Compact and lightweight (at 12 oz), the DXA-PRE won't weigh you down and will fit easily on your rig.
  • The unit easily snap on or off with the included V-CLIK Quick Release accessory.
  • Robust electronics and a rugged chassis ensure outstanding durability and reliability.
Custom Cables to Connect to Various Cameras
The DXA-PRE features both a balanced mini-XLR 5-pin output and an unbalanced stereo 3.5mm TRS output. Optional cables are available separately to connect the unit to a wide variety of cameras.

For powering, the BT-PWR power cable (available separately) is required to connect the DXA-PRE to any D-Tap power source.

  • RED DSMC2 All models: Included SC35 cable or Beachtek BT-35 cable for higher output
  • RED DSMC3 V-RAPTOR, V-RAPTOR XL: Beachtek BT-5PIN cable
  • RED RANGER HELIUM, GEMINI, MONSTRO: Beachtek BT-5XLR cable
  • ARRI ALEXA Mini: Beachtek BT-5PIN cable
  • ARRI ALEXA Mini LF, ALEXA 35: Beachtek BT-6PIN cable
  • ARRI ALEXA LF, ALEXA SXT W: Beachtek BT-5XLR cable
  • SONY VENICE, VENICE 2: Beachtek BT-5XLR cable
  • DSLR, Mirrorless, Camcorders: SC35 3.5mm TRS to 3.5mm TRS cable (included in package)

Beachtek DXA-PRE Specs

General
Compatibility
Not Specified by Manufacturer
Frequency Response
20 Hz to 20 kHz (+/-1 dB)
Maximum Input Level
Lo Gain: -13 dBu (Mic Input), 17 dBu (Line Input)
Hi Gain: -33 dBu (Mic Input), -3 dBu (Line Input)
Gain
Line Out: 40 dB Lo Gain, 60 dB Hi Gain
Mic Out: 10 dB Lo Gain, 30 dB Hi Gain
Dynamic Range
100 dB
THD+N
Lo Gain: 0.013% (+4 dBu Output, 1 kHz)
Hi Gain: 0.07% (+4 dBu Output, 1 kHz)
Channel Separation
Lo Gain: 85 dB (+4 dBu Output, 1 kHz)
Hi Gain: 80 dB (+4 dBu Output, 1 kHz)
Inputs/Outputs
Audio I/O
2x XLR 3-Pin Input (Mic / Line Levels)
1x Mini-XLR 5-Pin Line Output
1x 1/8" / 3.5 mm TRS Mic Output
Power Connector
2-Pin 0B LEMO Jack, Pin 1 = (-), Pin 2 = (+)
Power
Power Source
Battery (Not Included)
DC Input Power
5 to 18 VDC at 120 mA
Physical
Mounting
1x V-CLIK Quick Release Plate
1x Brass Mounting Foot
Color
Black
Dimensions
3.69 x 3.15 x 1.46" / 9.37 x 8 x 3.71 cm
Weight
12 oz / 340 g
Packaging Info
Package Weight
1.62 lb
Box Dimensions (LxWxH)
8.9 x 7 x 2.8"

Beachtek DXA-PRE Reviews

Seems great! Further testing to prove, but I'm sold!

By brennish
Rated 5 out of 5
Date: 2025-06-10

Purchased this unit to pair with my Sound Devices Mix-pre 10II to act as ch9-10. When a colleague suggested it, I instantly loved the form-factor and simplicity, the large VU meters and the connectivity. I ended up purchasing the BT-35 5-Pin Mini-XLR Female to Right-Angle 3.5mm TRS Male Cable along with a Tilta 2-Pin LEMO to 5.5/2.5mm DC Barrel Male Cable (15.74) in order to get everything up and running. The 3.5mm cable sends a stereo un-balanced signal out to the Mix-Pre 10II ch9-10, and the LEMO cable powers the unit via the 8v DC output on the V-mount battery I use for the rig. So far its working quite well in my testing. I like the stepped gain-controls and bright LED's for easy viewing. The tiny switches seem fine, hard to say how they will hold up to constant use but I suspect they are digitally controlling the circuit hopefully so they ought to be fine. I also took a bright-blue paint marker and colored each of the switches for easier viewing in the dark. 48v Phantom is included. Rear connections are name-brand parts and good stuff. Having multiple gain ranges is great as well, and the ability to swap to mono-sum for on-camera use is handy. It has a full-length hot-shoe mount on one side and a double 1/4-20 thread on the other, both of which are supported respectively with the included attachments: A hot-shoe adapter and a QD locking plate of their own design. Both appear to be custom machined, good quality. They include a 3.5-3.5 coiled cable for plugging directly into a camera. Time will tell how it fairs in the field but its very robust and seems quality, even the packaging was quite nice! Look forward to putting it through its paces.

See any errors on this page?

Will this work with the Blackmagic Pocket Cinema ...

Will this work with the Blackmagic Pocket Cinema G2?
Asked by: Miles
Yes, the Beachtek DXA-PRE Two-Channel Preamplifier for Cinema Cameras will work with the Blackmagic Design Pocket Cinema Camera 6K G2 camera.
Answered by: David M
Date published: 2025-11-13

Can I purchase a power supply for the DXA-PRE ...

Can I purchase a power supply for the DXA-PRE other than the D-tap configuration? It says battery... what type of battery?
Asked by: Mandi
The Beachtek DXA-PRE Two-Channel Preamplifier for Cinema Cameras can use any 5-18v DC battery source via the 2-pin lemo connector. There is no option for an internal battery.
Answered by: Alex D
Date published: 2023-10-29
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