The solid technology of the 5020 benefits from the designs built into the larger models of the Concept series. For one thing, the tweeter is hermetically shielded inside. Vibrations of the bass-midrange driver cannot disturb it in its work. On the other hand, decoupling from the baffle ensures that structure-borne sound cannot influence the work of the 2.5-centimetre dome tweeter, which operates above 2,500 Hertz. The baffle is laminated with butyl rubber and black acrylic cladding, and the tweeter and bass/midrange drivers are positioned close together, which enhances the speaker's spatial imaging capabilities.

Innovative chassis

For the 5020, Q Acoustics has redesigned the 13 cm diameter bass-midrange driver. The developers call the geometry of the cone the "C3 Continuous Curved Cone" profile. The design of the cone is intended to reduce distortion, especially in the reproduction of midrange frequencies. Furthermore, the dispersion behaviour should improve and the coupling to the tweeter should be more linear at the crossover frequency of 2,500 Hertz. The voice coil measures a good 2.5 centimetres and is immersed in a powerful magnetic motor, which increases the speaker's power handling.

To prevent the cabinet from taking on an acoustic life of its own, struts are fitted inside to prevent resonance. Of course, this is not done randomly, but the struts were calculated using the finite element method. This leads to the beautiful combination of minimal material expenditure and maximum effect. On the back of the body is the opening of the bass reflex cabinet. If the speakers are placed directly in front of the rear wall, the reflex tube can be closed with the help of an enclosed foam plug, so that the bass, which would otherwise be too loud, does not overpower the musical events. The single-wiring connection terminal preferably accepts banana plugs; a cable lug must not be too thick, otherwise it can easily slip out when tightened.