3-Way Screen Channel Loudspeaker, Tri-amp


  • Studio reference-quality loudspeaker system
  • Part of the Reference Monitor System, including matched RSB-212 subwoofer, signal processing, and amplification
  • Optimized for use behind a perforated screen
  • Directivity Matched Transition® (DMT) ensures smooth, coherent power response throughout the listening area
  • 90° axisymmetric horn
  • 12-inch (305 mm) woofer with 4-inch (102 mm) voice coil
  • 3.5-inch (90 mm) diaphragm HF compression driver with coaxial 1.75-inch (44 mm) VHF compression driver
  • M10 threaded inserts offer flexible and safe deployment options for a variety of applications
  • Optional RBK-12 baffle wing kit
  • NL8 Speakon™ connectors
Rated Coverage Angle (-6 dB) 90 degrees Axisymmetric
Frequency Range1 (-10dB) 55 Hz to 20 kHz
Crossover Frequencies 80 to 120 Hz (selectable), 1.2 kHz,
7 kHz 
up to 48 dB/oct using dedicated Q-SYS DSP
Rated Noise Power / rms Voltage2 LF: 500 W / 63 V
  MF: 80 W / 25 V
  HF: 55 W / 20 V
Sensitivity3 LF: 94 dB
  MF: 107 dB
  HF: 105 dB
Maximum continuous SPL4 LF: 121
  MF: 126
  HF: 122
Maximum peak SPL4 LF: 127
  MF: 132
  HF: 128
Rated Impedance LF: 8Ω, MF: 8Ω, HF: 8Ω
Recommended Amplifier Power LF: 1000 W
  MF: 500 W
  HF: 300 W
Transducers LF: 12-inch (305 mm) woofer
  MF/HF: coaxial neodymium compression driver
with 3.5-inch (90mm) MF voice coil and 1.75-inch (44mm) HF voice coil
Enclosure Details 
Input Connector Parallel NL8: 1/to sub, 2/LF, 3/MF, 4/HF
Enclosure Material 15-ply Baltic birch plywood
Dimensions (HWD) inches 28.5 x 15.1 x 13.5
Dimensions (HWD) mm 725 x 383 x 344
Net Weight 66.4 lb (30.1 kg)
Included Accessories None
Optional Accessories RBK-12 baffle wing kit

1 Free-field, unprocessed, -10 dB from on-axis sensitivity
2 AES2-1984 noise signal for 2 hrs
3 On-Axis, free-field sensitivity, 2.83V, 1 m
4 Calculated from rated noise voltage and sensitivity

All specifications are subject to change without notice.