Speaker Box 52 way bookshelf speakers The Speaker Box 5 is an audiophile 2 way monitor with bass reflex principle. Acoustically optimized and through the bass reflex tube on the back, the Speaker Box 5 brings clear and dynamic basses to the fore. The chassis come in three high quality finishes in glossy lacquer. The recommended amplifier power is rated between 10 150 watt RMS, where it applies as for every speaker: the higher the power of an amplifier the less