Beachtek DXA-CINE Preamplifier for ALEXA Mini/Mini-LF & Red Cameras

LO gain -15dBu
HI gain -35dBu

+4dBu when level indicators change to red Output Clipping Level +25dBu (XLR), +21dBu (3.5mm)

20Hz to 20kHz (+/- 0.5dB) THD+N
Lo Gain: 0.013% (+4dBu output, 1kHz)
Hi Gain: 0.08% (+4dBu output, 1kHz)

100dB

LO +40dB
HI +60dB

3.5 volts on all mini-jack mic inputs

Green: -40dBu to -16dBu (low)
Yellow: -16dBu to +4dBu (normal)
Red: +4dBu (over)

11-18 volt via 2-pin Lemo Pin 1 = (-), Pin 2 = (+)

3.54″ x 3″ x 1.57″ (L x W x H) (90 mm x 76 mm x 40 mm)

10.2 oz. (0.29 kg)

DXA-CINE Operating Manual

Playback Monitoring: To monitor audio from the camera during playback use another SC35 cable (TRS Output Cable). Connect this cable between the phone out on the camera (if it has this feature) and the RTN Jack on the adapter. Set the MONITOR switch to RTN. You can now playback the clip and hear the audio through your headphones connected to PHONE output on the adapter.

Audio Bracketing: Audio Bracketing is a simply a technique of setting a secondary channel at a lower level to use as a backup in case the primary channel gets blown out from an overly hot signal. This can be used anytime a single mono mic is being used with the adapter. It is very easy to do:
1) Plug the mic into any input which will be the primary channel.
2) Set the OUTPUT switch to M for MONO.
3) Adjust the primary channel level as usual.
4) Adjust the other secondary channel at a somewhat lower level
between 10 and 20dB.