BeachTek DXA-PRE Low-Noise Preamplifier for Cinema Cameras
- Two transformer-balanced XLR inputs with phantom power
- VU meter for setting levels
- Balanced 5-pin XLR and 3.5 mm outputs
$499.00 USD
BeachTek DXA-PRE Low-Noise Preamplifier for Cinema Cameras
The BeachTek DXA-PRE brings two XLR microphones or wireless receivers into a cinema camera through a low-noise preamplifier, with a VU meter for setting levels.
The two XLR inputs are transformer balanced for galvanic isolation and high common mode rejection, accept mic or line level, and have phantom power, two gain settings, and trim controls. The preamps give 100 dB of dynamic range.
A balanced mini XLR 5-pin output and an unbalanced 3.5 mm stereo output connect to a wide range of cameras, and the SC35 3.5 mm output cable comes in the box. BeachTek cables for RED, ARRI, and Sony cinema cameras are listed on the Compatibility tab. With a single mono mic, audio bracketing records a backup channel at a lower level, a safety track in case the main channel distorts from a hot input.
The DXA-PRE weighs 12 ounces and has mounting shoes, and the included V-CLIK quick release plate snaps it on or off a rig. It runs from a 2-pin LEMO jack at 5 to 18 V, and the BeachTek BT-PWR cable connects it to any D-Tap source.
Features
- Two transformer-balanced XLR inputs, mic or line level
- Phantom power
- Two gain settings and trim controls
- VU meter
- Balanced 5-pin XLR output
- Stereo 3.5 mm output
- Audio bracketing for a backup channel
- 2-pin LEMO power jack
- Mounting shoes and a quick release mount
- V-CLIK quick release plate and SC35 cable included
What's Included
- DXA-PRE preamplifier
- V-CLIK quick release plate
- SC35 3.5 mm to 3.5 mm output cable
Specifications
| Inputs | 2 × XLR (transformer balanced, mic or line level) |
|---|---|
| Outputs | Balanced mini XLR 5-pin; unbalanced 3.5 mm stereo mini-jack |
| Maximum input level | LO gain: −13 dBu (mic input), 17 dBu (line input); HI gain: −33 dBu (mic input), −3 dBu (line input) |
| Frequency response | 20 Hz – 20 kHz (±1 dB) |
| THD + N | 0.013% (LO gain), 0.07% (HI gain), +4 dBu output, 1 kHz |
| Gain | Line out: 40 dB (LO), 60 dB (HI); mic out: 10 dB (LO), 30 dB (HI) |
| Dynamic range | 100 dB |
| Channel separation | 85 dB (LO gain), 80 dB (HI gain), +4 dBu output, 1 kHz |
| VU meter | −20 dBu to +8 dBu in 4 dB steps |
| Output clipping level | Line out +26 dBu; mic out −4 dBu |
| Power | 2-pin 0B LEMO jack, 5–18 V, 120 mA (pin 1 −, pin 2 +) |
| Dimensions (L × W × H) | 3.69 × 3.15 × 1.46 in (93.6 × 80 × 37 mm) |
| Weight | 346 g (12 oz) |
Compatibility
| Brand | Camera | BeachTek cable |
|---|---|---|
| RED | DSMC2 (all models), KOMODO | SC35 (included), or BT-35 for higher output |
| RED | DSMC3: V-RAPTOR, V-RAPTOR XL, KOMODO-X | BT-5PIN |
| RED | RANGER HELIUM, GEMINI, MONSTRO | BT-5XLR |
| ARRI | ALEXA Mini | BT-5PIN |
| ARRI | ALEXA Mini LF, ALEXA 35 | BT-6PIN |
| ARRI | ALEXA LF, ALEXA SXT W | BT-5XLR |
| Sony | VENICE, VENICE 2 | BT-5XLR |
| Other cameras | DSLR, mirrorless, and camcorders | SC35 (included) |
