Features & Specifications:

Three-way, floor-standing loudspeaker with Conjugate Load Matching, Coupled-Cavity bass loading, and line-level equalizer.
Drive-units: 1" (25mm) metal-dome tweeter, 5" polypropylene-cone midrange unit, two 10" (250mm) pulp-cone woofers.
Crossover frequencies: 160Hz, 2.5kHz.
Frequency response: 20Hz-20kHz ±2.5dB (-6dB at 18Hz, Q=0.5).
Directional axis characteristics: within 2dB of reference up to 10kHz for ±10 degrees vertically, ±30 degrees horizontally.
Position of reference axis: 40" above cabinet base, not including feet.
Nominal impedance: 4 ohms resistive.
Sensitivity: 90dB/W/m (2.83V band-limited pink noise, 50Hz-20kHz, anechoic).
Amplifier requirements: 50-300W.
Maximum output: 112dB spl on program peaks under typical listening conditions. KUBE 107/2 equalizer: LF contour: continuously variable shelf control allowing +4/-6dB adjustment centered on 160Hz. HF contour: continuously variable control allowing +2.5/-3.5dB adjustment centered on 4.5kHz. Input impedance: 51k ohms.
Maximum input level: >1.9V RMS 20-50Hz, >8V RMS above 50Hz.
Output impedance: 100 ohms.
Maximum output level: >5V RMS.
Output noise: <6µV A-weighted.
S/N Ratio: >104dBA ref. 1V
RMS. THD: <0.005% (1V RMS input at 1kHz).
Dimensions: 45.9" (1165mm) H by 13" (330mm) W by 17.6" (448mm) D (speaker); 2.6" (65mm) H by 6.5" (152mm) W by 9.2" (234mm) D (equalizer). Enclosure volume: 72 liters (LF), 8.5 liters (midrange/HF).
Weight: 99 lbs (45kg) each (speaker); 2.87 lbs (1.3kg) (equalizer).