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 distortion can be found at lower volumes. Amplifiers with less power are driven to their limits faster at lower volumes, while having more distortion when reaching their peak, this can harm any loudspeaker!

And these are comments from audio testers:
Well tuned and upbeat basslines
Lively dynamics
Surprisingly low coloration
Good transparency and reasonable image depth
Bass is fast and tuneful, this is what really matters!