RCF C4128



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The C4128 is a full range 2 way high sensitivity, dual woofer passive system, compact and versatile specially designed for under balcony applications.

It is designed to provide extended low frequency performance from a compact, vented enclosure. It features advanced technology transducers: two 8" woofers equipped with a 2" voice coil and a 1" neodymium compression driver equipped with a 1.5" voice coil. The compression driver is mounted on a rotatable 90 x 70 constant directivity horn, providing very natural sound reproduction.
The cabinet is asymmetric (15° and 45°) for versatile under balcony applications as well as ceiling/wall installation and floor monitoring operations.
The wide coverage angle and the true constant directivity of the newly designed horn make very easy the coverage of large audiences.

  • High efficiency
  • 1" neodymium compression driver with 1.5" voice coil
  • Asymmetrical cabinet under-balcony/wedge monitor applications
  • Active Mosfet Compression Driver Protection
  • LICC Crossover
  • 90°x 70° CMD (Constant Matching Design) constant directivity rotatable horn
  • M10 mounting points
Acoustical Specifications
  • Frequency Response -10 dB:100 Hz ÷ 20 kHz
  • Max SPL @ 1m:122 dB
  • Horizontal coverage angle:90°
  • Vertical coverage angle:70°
  • Directivity index; Q:9.25
  • System Sensitivity:96 dB
  • Nominal Impedance:8 Ω
  • Power Handling:400 W
  • Peak Power Handling:1600 W
  • Recommended Amplifier:800 W
  • Protections:Dynamic
  • Crossover frequencies:2100 Hz
  • Compression Driver:1" HF driver , 1.5" voice coil
  • Nominal Impedance:8 Ω
  • Input Power Rating:25 W AES
  • Sensitivity:109 dB
  • Woofer:2 x 8" woofer, 2" voice coil
  • Nominal Impedance:16 Ω
  • Input Power Rating:200 W AES
  • Sensitivity:94 dB
Input Section
  • Input connector:Speakon NL4
  • Output connector:Speakon NL4
  • Cabinet Material:10 mm birch plywood construction
  • Hardware:3 x M10, 4 X M5, 2 X M6 inserts
  • Pole Mount/Cap:Yes
  • Grille:Custom perforated steel grille
  • Colour:Black, white, scratch resistant paint
Physical Specifications
  • Height:650 / 25.59 mm/inch
  • Width:260 / 10.23 mm/inch
  • Depth:299 / 11.77 mm/inch
  • Net Weight:17.4 / 38.36 kg/lbs