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REVSIGDC4T - TANNOY Revolution Signature DC4T
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Passion, performance and precision 80 years in the making - and more affordable than you might think.


Isn’t it time you escaped with a Revolution Signature?

Bristling with cutting edge acoustic technology, the floor standing Revolution Signature DC4 T is a high performance two channel or compact home theatre loudspeaker. The 100mm (4.00") point source, constant directivity Dual Concentric™ drive unit, additional 100mm (4.00") bass driver and WideBand™ extended frequency response, combine with premium crossover components, driver earthing and a rigidly constructed, sensuously styled curved trapezoidal cabinet; all ensuring natural midrange, high intelligibility, airiness and expansive sound staging.

Drive unit:
The time coherent, point source Dual Concentric™ driver is effectively two drive units, HF and MF/LF, properly merged into one; ensuring there is no loss of energy in the crossover region. The high rigidity chassis, with multi-point fixings for optimal contact with the baffle, minimises vibration and delivers fast tuneful bass, while the rigid multi-fibre paper pulp cone provides accurate bass and dynamic midrange with excellent intelligibility.

Key to the acoustic performance of this award winning drive unit is the WideBand™ tweeter technology. Using a high rigidity titanium dome with neodymium magnet assembly coupled to a rear acoustic cavity, the driver delivers low colouration and meticulously detailed, spacious and airy detail. The substantial magnet assembly is shielded to prevent colour fringing effects when placed close to screens.

Crossover design:
Great care has been taken over the component topology; kept simple in layout for maximum signal transfer and to minimise interaction between components. Tannoy DMT™ (Differential Material Technology) is used to damp the audiophile grade polypropylene capacitors in the HF feed and low loss laminated core inductors have been selected for the LF section. The internal wiring is silver plated high purity oxygen free copper, with high current bi-wire terminals.

The addition of an extra fifth terminal provides grounding for the drive unit chassis, voice coil and speaker cable to reduce the pick up of airborne RF; thus eliminating any feedback interference that can adversely affect the performance of the source electronics in any audio system.

Cabinet construction:
The high rigidity MDF construction, with its extensive internal bracing, minimises cabinet effect’ colouration and contributes to the clean detail and speed of the presentation. DMT™ (Differential Material Technology) a special Tannoy bracing mechanism, is used between the back of the drive unit and the cabinet to further control vibration, resulting in enhanced resolution of fine detail.

The curved wall trapezoidal cabinet construction minimises resonances and internal reflections, while floor standing models are also equipped with spikes for optimum stability and vibration reducing contact with the floor surface; all of which are factors in improving stereo imaging.

Clean and contemporary, the hand finished cabinets are available in a choice of Espresso or Light Oak real wood veneers to match traditional and modern interiors. The beautifully integrated brushed aluminium trims, with discreet logo and branding, complete the cool and fully integrated design.

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Product Specification
PERFORMANCE
Recommended amplifier power 20 - 125 Watts RMS
Continuous power handling 62 Watts RMS
Peak power handling 250 Watts
Sensitivity 87dB (2.83V @ 1m)
Nominal impedance 8 Ohms
Frequency response 55Hz - 54kHz (-6dB)
Dispersion 90 degrees conical
DRIVE UNIT
Dual Concentric™ high frequency 19mm (0.75”) titanium dome with Tulip WaveGuide™
Dual Concentric™ low frequency 100mm (4.00”) treated paper pulp cone with rubber surround and 33mm (1.33”) edge wound voice coil
Bass driver 100mm (4.00”) treated paper pulp cone with rubber surround and 33mm (1.33”) edge wound voice coil
CROSSOVER
Crossover frequency 1.5kHz
Crossover type Passive low loss 2nd order LF, 1st order HF
CONSTRUCTION
Enclosure type Front ported
Volume 10.5L
0.37 cu. ft.
Dimensions 850 x 169 x 175mm (H x W x D ex. grille)
33.46 x 6.65 x 6.89” (H x W x D ex. grille)
Weight 10.5kg
23.15lbs
Finish Light oak and Espresso