Shure SH55 Series II Руководство по эксплуатации онлайн [9/48] 776214

At the same time the print ad appeared, Shure nalized the elements of the next Unidyne

generation. Unveiled in 1951, the new “Small Unidyne” featuring the Unidyne II cartridge

improved on the features that made the original Unidyne such a success. As their name

implies, the Small Unidynes were lighter in weight and more compact than the originals.

Compared to their predecessors (which were still offered in 1951), the Small Unidynes were

only about two-thirds the size and available in two model congurations—Model 556S (for

broadcast) and Model 55S (for general purpose). The new cartridge improved performance

with the addition of improved magnet materials, diaphragm suspension, and cartridge isolation.

Unwanted noise pickup was reduced even further, while frequency response was rened as

well. Like the Standard Unidynes, the Small Unidynes were equipped with a multi-impedance

selector switch.

The new Unidyne cartridge brought more success to Shure. It was employed until 1989, when

it was replaced by an updated cartridge.

Other modications to the 55S included a change to the support base in 1961, the elimination

of the multi-impedance selector in 1978, and the use of open cell foam as the internal

windscreen material replacing the original open weave cloth.

THE MICROPHONE THAT NEEDS NO NAME

Teaser postcards for the introduction of the 55S, April 1951