sE Electronics FluxCore FCA1 Active DI Box

sE Electronics FluxCore FCA1 Active DI Box

An input impedance of up to 10 MΩ helps preserve the natural tone and dynamics of passive pickups and piezo-equipped instruments. The LOAD switch lets you choose the input loading.

The integrated DYNAMITE stage boosts a low-level source before a long cable run. Select 0 dB, +15 dB or +30 dB to suit the available signal level.

A shielded transformer provides a balanced, galvanically isolated XLR output. Ground Lift keeps the ground connected at OFF, disconnects it at ON, and adds high-frequency noise and RFI suppression at ON+. Effectiveness depends on the system and interference source.

The THRU connection is wired directly to the input for feeding an amplifier alongside the DI. The combined input impedance is then lower. FCA1 requires 48 V phantom power over a balanced cable with XLR connectors at both ends.

Main Features

• ATT PAD accommodates higher-level sources; engaging it also changes the input impedance.
• POLAR inverts polarity when combining the direct feed with a miked amplifier.
• Front and rear +48 V LEDs show phantom-power status from either side.
• Four M3 mounting points allow up to four units side by side on most standard 1U rack shelves.
• The non-slip mat reduces movement and mechanical vibration while protecting surfaces from scratches.
• The hook-and-loop pads cover the base and can be trimmed to reduce holding force.
• The matte-black chassis remains discreet on stage, and multiple units can be stacked.

Technical Specifications

• Type: Active DI Box
• Frequency Range: 10 Hz - 80 kHz (-0.3 dB)
• Gain: 0 dB / +15 dB / +30 dB
• Attenuation: 0 dB / -15 dB / -30 dB
• Input Impedance, ATT PAD 0 dB: 10 MΩ / 100 kΩ / 10 kΩ, selectable via LOAD
• Input Impedance with Pad: 12 kΩ (-15 dB); 10 kΩ (-30 dB)
• Maximum Input Level, 0.5% THD: 8 dBV (2.75 V), 24 dBV (15 V), 39 dBV (87 V) at 0 / -15 / -30 dB attenuation respectively
• Output and Load Impedance: 60 Ω; recommended load >1 kΩ
• Output Noise, JIS-A: 1.4 µV / 6.4 µV / 29 µV at 0 / +15 / +30 dB gain
• Power: 48 V phantom, IEC 61938; current consumption 7.2 mA
• Connections: 6.3 mm TS IN and THRU; 3-pin male XLR output, pin 1 ground, pin 2 (+), pin 3 (-)
• Dimensions (W × H × D): 100 × 39 × 127 mm
• Weight: 795 g

What’s Included

• 1 × sE Electronics FluxCore FCA1 Active DI Box
• Non-slip mat
• Hook-and-loop mounting pads
• 4 rack-mount screws

Who Is It For

For guitars, basses, piezo-equipped instruments, high-impedance microphones and keyboards. Particularly useful when a source needs high input impedance or extra gain. Suitable for stage and studio systems with phantom power available.

Can’t find the sE Electronics product you are looking for?

Contact us: info@stageiq.lt or +370 636 55536.