Equipped with a total of 18 Wilson Benesch drive units per pair, the Cardinal is capable of delivering wide bandwidth sound from 25Hz to 30kHz. During the development of the Cardinal extensive research and development was undertaken in drive unit topology. The result was the Troika System; a new topology – previously unused by Wilson Benesch that placed the new Semisphere Tweeter at the heart of the upper and lower Tactic II midrange drive units. In the Cardinal the Troika System should be recognized as a highly innovative and significant advance in the loudspeaker design. The Troika not only places three highly integrated Wilson Benesch drive units in close proximity, but it also directly interrelates with the cabinet and drive unit architecture to create mechanical filtering. The result is a highly optimized crossover, with all electrical components reduced or removed entirely to preserve the perfect signal from the amplifier.
Drivers: 1 x 25mm ( 1″) Wilson Benesch Semisphere tweeter; 2 x 170mm ( 7″) Wilson Benesch Tactic II mid-range drive units; 4 x 170mm ( 7″) Wilson Benesch Tactic II Isobaric bass drive units; 2 x 170mm ( 7″) Wilson Benesch Tactic II ABR drive units
Construction: Poly-alloy hybrid construction; High performance carbon composite A.C.T. monocoque; Lower mid range infinite baffle sealed enclosure; Upper mid range Tactic II ABR sealed enclosure; Isobaric drive chamber Tactic II ABR sealed enclosure; 4kg precision machined Isobaric drive sub baffle;
Performance: 2-way electric, 4-way acoustic, floor standing loudspeaker; Impedance: 6Ω nominal / 3Ω minimal; Sensitivity: 90dB at 1 metre on-axis, 2.83V input; Frequency response: 25Hz – 30kHz +/- 2dB on-axis; Minimum amplification power recommendation: 100 W / channel; Crossover frequency: 500Hz / 5kHz