Bose - Acoustimass 501-X Speaker set

The Bose Acoustimass 501-X is a 2.1-channel speaker system consisting of two compact cube speakers and a powerful Acoustimass module. The cube speakers deliver clear high and midrange frequencies, while the Acoustimass module provides deep, powerful bass with no distortion, even at higher volumes.

Specifications of the Bose 501X system
Frequency range: 48 Hz to 20 kHz
Crossover frequency: 150 Hz
Maximum power: 165 W
4 ohm nominal impedance
Specifications of the Bose 501X Cube speaker
Speakers: 5.7 cm (2 1/2") full-range, shielded magnet (4 units)
Dimensions: 91 mm x 91 mm x 117 mm
Weight: 2.3 kg in total for 4 units