Since the horn has a certain geometry, resonances in a narrow frequency range can form inside it. It is for this reason that Tannoy coaxial speakers are called Dual Concentric. That is, the horn system consists of two parts. It takes its origin from the membrane of the tweeter, continues inside the magnetic system of the woofer and smoothly passes into the woofer cone, which, with its profiled cone shape, continues the horn design of the tweeter. This arrangement of the tweeter allows the use of a unique elongated horn design. In the Dual Concentric design, the dome tweeter is located deep inside, behind the woofer magnet system. In this case, only the alignment of the emitters is respected, which saves space when designing the column case. In the coaxial emitter familiar to many, the tweeter is usually located in front of the woofer. The main advantage of coaxial speaker placement over conventional two-way systems is a more coaxial and focused sound and a more uniform radiation pattern. Let’s take a look at what makes this unique coaxial speaker design special and what it does for sound. Monitor cases are made of MDF, laminated with vinyl film. The bass reflex port is unusually decorated with a control panel. The gold-tone coaxial tweeters give the appearance a recognizable appearance, just like the high-end passive Tannoy Hi-End speakers.
TANNOY DUAL CONCENTRIC SERIES
The new Gold Series brings the legendary Dual Concentric technology back to the mainstream Tannoy active monitors. In Tannoy studio loudspeakers, coaxial speakers were used less frequently, as two-way split speaker systems were easier to manufacture. The most widely used emitters Dual Concentric received in Hi-Fi and High-End direction. And although the manufacturer is constantly improving them, using new materials, advanced means of production and modern research, the concept remains unchanged. Interestingly, the design of the current Dual Concentric speakers remains largely unchanged. For decades, many of the leading recording studios have operated monitors based on Tannoy coaxial drivers. The outstanding sounding of those times immediately attracted public attention and made the loudspeakers iconic. Their key feature is the special combined tweeter and woofer design, with a dual horn. Tannoy introduced its legendary Dual Concentric coaxial speakers back in 1947. We tested the 7-inch Tannoy Gold 7 monitors, which sit in the middle between the massive Gold 8 and the compact Gold 5. The number in the model name indicates the diameter of the woofer used. The differences lie in the size of the speakers and the power of the amplifier. They are all two-way, near-field and have Dual Concentric coaxial speakers. The Tannoy Gold series of monitors are available in three models.
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