sE Electronics FluxCore FCP1 Passive DI Box

sE Electronics FluxCore FCP1 Passive DI Box

The passive FCP1 converts an instrument or other audio source to a balanced XLR feed. A shielded transformer provides galvanic isolation, and it requires no batteries or phantom power.

SUM L+R combines a stereo source into one mono output. Connect the left and right channels to IN / L and THRU / R, or use the 3.5 mm TRS stereo input. This saves an input channel on a mixer or audio interface.

With summing disabled, THRU / R can feed an amplifier. It is directly connected to the input, so the additional device lowers the combined input impedance. The FCP1’s high input impedance minimizes loading to preserve instrument tone and dynamics.

Ground Lift keeps the ground connected at OFF, disconnects it at ON, and adds high-frequency noise and RFI suppression at ON+. The best setting depends on the system and interference source.

Main Features

• ATT PAD attenuation accommodates higher-level sources.
• POLAR inverts polarity when combining a direct feed with a miked amplifier.
• 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: Passive DI Box
• Frequency Range: 18 Hz - 30 kHz (-0.3 dB)
• Gain: -20 dB
• Attenuation: 0 dB / -15 dB / -30 dB
• Input Impedance, ATT PAD 0 dB: 650 kΩ
• Input Impedance with Pad: 12 kΩ (-15 dB); 10 kΩ (-30 dB)
• Maximum Input Level, 0.5% THD: 30 dBV (33 V), 45 dBV (185 V), 60 dBV (1,044 V) at 0 / -15 / -30 dB attenuation respectively
• Output and Load Impedance: 168 Ω; recommended load >1 kΩ
• Connections: 6.3 mm TS IN / L and THRU / R; 3.5 mm TRS stereo input; 3-pin male XLR output, pin 1 ground, pin 2 (+), pin 3 (-)
• Power: Requires no external power
• Dimensions (W × H × D): 100 × 39 × 127 mm
• Weight: 795 g

What’s Included

• 1 × sE Electronics FluxCore FCP1 Passive DI Box
• Non-slip mat
• Hook-and-loop mounting pads
• 4 rack-mount screws

Who Is It For

For keyboards, synthesizers, computers, media players and backing tracks on stage, in the studio or in installations. SUM L+R is useful when a stereo source must feed one mono channel; preserving a stereo image requires two DI channels.

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

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