Conclusion: "This is a blow to the gut: With the Concept 500, the triumvirate behind Q Acoustics has created a beautiful, impressively sounding, and also relatively affordable high-end speaker. I am sure that the Concept 500 is going to be one of the classics of tomorrow. Definitely worth a listen!"

Carefully selected high-quality components allow the crossover to work practically free of noise and distortion. 4th order Linkwitz-Riley crossovers are used, which offer excellent playback properties both on and off the axis. Three-layer housing walls, the spaces between which have been filled with a non-hardening gel under pressure, absorb housing resonances and convert high-frequency vibrations into heat.