Quality and sound pressure really correct, I have 2 each associated with one and all W400a offers a system that equilibrated high quality and respectable sound pressure (200 to 500 people depending on the diffusion.
The small cot default, there is no LED crtage, suddenly we do not know if we are close to the limits in power or not, but fortunately the amplification is controlled by a limiter .
A high level, the body tends to vibrate (cot ngatif with ABS) but fortunately the noise do not agree because of the association with "satellites".
Verrifier also from time to time as they saw the rear taient DSRs, or home or with the vibration (vibration of the produce electronic sounds in this case m mechanical).
Its strength is the diversity of configurations possible, hand the number of connectors.
As the w400a, there is no cover option, which allowed the stripe being protected from damage during transport ...