Q Concept Q FS75

Low Resonance And Minimal Reflective Surfaces

Our QFS75 has been designed specifically to partner with the standmount speaker, providing a stable mounting platform for the speaker with low resonance and minimal reflective surfaces. The base of the standmount speaker includes fixings to enable the Q Active Stand to be bolted rigidly to the speaker. The striking design of the Q Active speaker stand adopts the principles of a space frame consisting of rods in compression stabilized by cables in tension. Important benefits of this arrangement lie in the skeletal, high rigidity construction that has minimal parallel or planar surfaces

Minimizing Reflections

A known problem with conventional speaker stands is that their relatively large surface area acts as a re-radiating surface for the sound waves created by the drivers above them. Sound leaving the drive units will radiate uniformly in all directions and will reflect from any nearby surfaces – such as the speaker stand – with an accompanying phase shift causing constructive and destructive interference with the direct sound. Finite element analysis has shown how a real-world radiated sound field is affected by reflections from the surface of the different types of stand.

In the diagrams, traditional solid and steel column stands are compared to a Q Acoustics space frame design. The radiated sound field should look likeperfect ripples on a still pond after a stone is thrown into the water. As can be seen, the solid MDF (Figure 11) and column (Figure 12) designs re-radiate far more of the original loudspeaker signal and therefore contribute significant disturbance (red and yellow) to the ideal sound field when compared with the space frame design (Figure 13).

Figure 11

Figure 12

Figure 13

Specifications

• Q Acoustics FS75 Speaker Floor Stand For Specified Q Acoustics Speakers
• Weight: 5.5kg / 12.1lb Per Pair
• Weight: 2.3kg / 5lb Per Stand
• Dimensions H/W/D: 638x286x338mm / 25.1″x11.3″x13.3″ Per Stand

What’s In The Box

• 2 x Demounted Speaker Stands
• 2 x Top Plates
• 8 x Spikes
• 8 x Rubber Spike Covers
• 2 x Top Plate Screws
• 8 x Speaker Screws / 4 Speaker Bolts
• 6 x Cable Clips
• 1 x User Manual