- #Tannoy dual concentric review drivers#
- #Tannoy dual concentric review driver#
- #Tannoy dual concentric review free#
The livery was changed to silver and in the autumn of the '15" Monitor Silver' loudspeaker from Tannoy was launched in a compound horn cabinet called the 'Autograph'. The heavy, black crackle finish, overly engineered cast chassis was replaced by a gravity casting with much more open area to the rear to prevent rear reflections.
#Tannoy dual concentric review free#
Six years later the unit was improved to 25 Watts power handling and the free air resonance lowered to 40 Hz to enable the unit to be used in encloses to improve the low frequency performance. Magnetic gap fluxes were provided by a cast iron alloy magnet and were very high for a speaker of the s at 12, gauss for the low frequency voice coil and 18, gauss for the HF coil.Īt 20 Watts power handling in the unit was very well received and this, coupled with a sensitivity close to 92 dB for 1 Watt at 1 meter right up to the highest frequencies, was a milestone for the company in providing high quality speech and music capabilities in an efficient way. In the first Tannoy Dual Concentric was born. The crossover point from bass to high frequency was selected at 1kHz nearly a whole octave above the natural horn frequency lower cut off point, leading to previously unheard of low levels of coloration. It was this important part of the design process that conceived a very low coloration horn device.īecause the HF horn had a very large mouth diameter it had an inherently low cutoff frequency.
#Tannoy dual concentric review drivers#
His skill in designing wide band horn systems married the two drivers together so that the flare shape of the 15" bass unit continued the flare rate of the high frequency unit. Ronnie H Rackham combined a high frequency compression horn drive unit concentrically with a 15" direct radiating bass driver. The speaker had to be efficient because all the amplification was by tube amplifiers design and built by Tannoy of course and the power supplies were derived from not very efficient motor generators and rotary converters.ĭrawing from his knowledge of high efficiency products made for the high quality public address market, the Chief Engineer, Mr.
The speaker requirement was for high quality speech and music for announcement and entertainment purposes in the largest travelling circus of Bertram Mills.
#Tannoy dual concentric review driver#
DIY Tannoy Speakers binaural recording with 2033 driver ( fine adjusted final prototype ) One innovative design was a universal speaker system designed for a travelling circus. The name stuck fast to the company's products over the years and eventually became the company name, Tannoy Ltd.įrom through the recession of the thirties and during the Second World War Tannoy produced many different products all to do with speech and music communications. This Tantalum-Lead Alloy produced the name Tannoy. Fountain in The name originates from a solid-state rectifier invented by Guy Fountain made from an alloy or mixture of Tantalum and Lead. The results are demonstrably worthwhile even in the unfamiliar surroundings of an in-store trial. In this world you get what you pay for and therefore for the best type of speaker system you should be prepared to spend more. Tannoy Dual Concentrics are by their very nature complex to manufacture and therefore you will not find them in a low price system. Both units operate in harmony together providing a single point source covering the whole acoustic audio spectrum and in a way that recreates the original sound field better than any other system. The low frequency unit operates without obstruction, as the cone piston apex is well clear of the high frequency unit. The waveguide high frequency unit so called because of the analogy in design to microwave engineering has a smooth acoustic path through the center of the low frequency unit without problems due to masking or diffraction. None of them has solved the problem from an ideal acoustic engineering point of view in the way that Tannoy has. It has the tweeter or treble unit mounted at the center of the bass unit so that the two units operate in total harmony with each other. A Dual Concentric speaker unit is very different from the standard speaker industry drive unit. Tannoy is famous worldwide for its innovative, unique and very accurate sounding Dual Concentric.
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