The technology incorporated into the Compound models is unique to Dynaudio. The complete tuning of this system as a whole was quite complicated and necessitated extensive experience and state-of-the-art measuring devices not available to most speaker builders. The Compound system consisted of a cabinet partitioned into two separate enclosures and was effectively based on the principle that any bass driver is damped by the volume of air behind trapped behind it in the enclosure.
In the Compound, the externally mounted bass driver was compound loaded by an internally mounted driver, which created the effect of an infinitely large airspace behind the external driver while completely absorbing the driver's back-wave energy. Until the Compound, accuracy and deep extension in regards to low bass performance were mutually exclusive. But the Compound redefined what was possible in terms of low bass performance out of a more compact cabinet, delivering an extremely deep bass response and incredible dynamics with an excellent impulse response. The technological refinement behind the Compound models was not limited to the enclosure. Sophisticated driver designs were required to achieve optimal results, and Dynaudio developed its most advanced transducers to date under laboratory conditions for the Compound.
The Compound 2 and Compound 3 models were intended for either bookshelf applications or free-standing placement standing via their optional stands to offer flexibility for use in every imaginable living space. Due to the rigid cabinet construction and resonance-damped, and massive, internally-braced cabinet walls, nearly all mechanical vibration was eliminated.
