The Secret Behind Monitor Audio's High-Tech Woofers
The keys to the Radius 390's powerful performance are its brawny 220-watt Class D amplifier and advanced driver design. Housed inside the Radius 390's enclosure are twin, side-firing 10" woofers working in tandem — one powered and one passive.
Each cone is made from a lightweight, ceramic-coated aluminum/magnesium alloy originally developed by the aerospace industry for jet engine components.
This ultra-rigid material resists the bending and twisting that causes distortion, while allowing the use of thinner, lighter, and more responsive materials. The result is tight, fast, and tuneful bass with exceptionally high output levels.
Attractive Grille-Less Design
Please note that this subwoofer does not come with grilles. Instead, it uses color-matching cones that complement the enclosure's attractive finish.
Features & Specifications
Frequency Response: 30-120 Hz
Built-in Class D amplifier delivers 220 watts of continuous power
Ultra-rigid, lightweight C-CAM® (Ceramic-Coated Aluminum/Magnesium) cone material provides high efficiency and low distortion
One 10" side-firing C-CAM long-throw woofer
One 10" side-firing C-CAM long-throw passive bass radiator
Continuously variable low-pass 40-120 Hz crossover
Phase switch (0/180°)
Three-position bass EQ switch (Music/Movies/Impact) provides fine-tuning for different sources
Auto on/off, plus 12-volt DC trigger input
Left and right line-level, LFE RCA inputs
This subwoofer does not come with grilles
13"W x 13-11/16"H x 12-9/16"D
Weight: 30.3 lbs.
Warranty: 2 years