Tannoy DC-8-T Owners manual

O W N E R ʼ S M A N U A L

CONTENTS

INTRODUCTION	03	CONNECTION IN SINGLE WIRE MODE	05
TECHNOLOGY	03	CONNECTION IN BI-WIRE MODE	05
AMPLIFIER CHOICE	04	BI-AMPING	06
CABLE CHOICE	04	CONNECTION OF EARTH OR 'GROUND' LEAD	06
UNPACKING	04	POSITIONING AND FINE-TUNING	06
TERMINAL PANEL	04	GRILLES	06
FLOOR STANDING MODELS	04	CARE OF CABINET	06
STAND MOUNTING MODELS	04	TECHNICAL SPECIFICATIONS	07
INSTALLATION	05	SET-UP DIAGRAMS	08-011

WARRANTY

No maintenance of the Revolution loudspeaker is necessary.

Please register your Tannoy product online at www.tannoy.com.

All of our products have been produced and tested with care and precision to give first-class service.

All passive components are guaranteed for a period of five years from the date of purchase from an authorised Tannoy dealer subject to the absence or evidence of misuse, overload, or accidental damage.

All active and electronic components are guaranteed for a period of one year from the date of purchase from an authorised Tannoy dealer subject to the absence of, or evidence of, misuse, overload or accidental damage.

If at any time during this warranty period the equipment proves to be defective for any reason other than accident, misuse, neglect, unauthorised modification or fair wear and tear, we will repair any such manufacturing defect or, at our option, replace it without charge for labour, parts or return carriage.

If you suspect a problem with a Tannoy product then, in the first instance, discuss it with your Tannoy dealer. If you require further assistance then we ask that you deal directly with your local Tannoy distributor. If you cannot locate your distributor please contact Customer Services, Tannoy Ltd at the address given below.

Customer Services, Tannoy Ltd., Rosehall Industrial Estate, Coatbridge, Strathclyde ML5 4TF, Scotland

Telephone:	01236 420199	(National)
	[phone]	(International)
Fax:	01236 428230	(National)
	[phone]	(International)
E-mail:	[e-mail]

Do not ship any product to Tannoy without previous authorisation.

Our policy commits us to incorporating improvements to our products through continuous research and development. Please confirm current specifications for critical applications with your supplier.

02_ DEFINITION MANUAL

INTRODUCTION

Thank you for selecting Tannoy loudspeakers developed in the UK by our dedicated team of design engineers. They are the choice of discriminating music lovers the world over. Musical excellence is designed into our loudspeakers from the start. Careful selection of the very best components combined with strict quality control procedures in the production process ensures this level of excellence is maintained.

To gain maximum performance from your loudspeakers, please take time to read this owner's manual in full before installation. Once you have set up your new loudspeakers please complete and return the registration document - this does not limit your legal rights.

Loudspeakers are electromechanical devices that 'run-in' through use; performance will therefore improve after an initial period of 24hrs use. Once they have been further run-in over a longer period, there will be clear enhancement of the stereo imaging, mid-band quality and bass performance characteristics.

We are confident that you will continue to enjoy your new Tannoy Definition loudspeakers for many years to come.

TECHNOLOGY Dual Concentric™

Tannoy Dual Concentric™ drivers have been incorporated into the Definition loudspeakers. Intensive research and development has produced an all-new version of this proven technology that builds upon the legendary performance of this exclusive Tannoy driver design.

The time coherent, point source and constant directivity nature of the dispersion characteristics inherent in the Dual makes it an accepted industry standard in studio monitoring. By exceeding the rigorous demands of the recording and mastering environment Tannoy can ensure that playback performance in the home for multi channel home cinema, is strictly controlled to accurately reflect the sound engineers artistry. In nature all sounds emanate from a single point in space.

The high frequency unit of the Dual, centrally mounted in the throat of the main mid/bass driver, is so positioned as to acoustically replicate this single point source; delivering an incredibly natural sound with a very wide imaging ʻsweet spotʼ that creates an expansive soundstage with remarkably focused placement of images.

Wideband™ Technology

Tannoy has incorporated its own WideBand™ technology into the design of these drivers. Not only does this exceptional in-house technology resolve fine detail of high frequency information but it also effectively enhances the listening experience throughout the whole frequency range. The WideBand™ high frequency system creates an increased immediacy, airiness and impact, making music and movie sound more natural and true to life.

Sounds contain transient information and rich harmonics beyond the range of human hearing for pure tones. Even low frequencies have leading edge transients reaching 30kHz. Tannoy WideBand™ high frequency units will accurately reproduce the leading edge of individual sounds allowing the listener to experience the entire bandwidth, by extending the frequency response well beyond that of conventional loudspeakers.

In addition, the extension of the frequency response, by fully two octaves, corrects time and phase response within the bandwidth of normal human hearing. Taking these acoustical phase anomalies beyond the audible range adds realism to the soundstage through improvements in imaging and the placement of sounds.

Audiophile Crossover

High-end components and a simple, straight philosophy combine to create a crossover with an ultra-clean signal path. Low loss laminated core inductors ensure optimum LF performance while the HF network audiophile-grade polypropylene capacitors are acoustically damped using Tannoy DMT TM technology. Non inductive metal film resistors are used in the high frequency feed. The Definition crossover sets the bench-mark for signal integrity, reproducing music with all the articulation and intelligibility of the original performance.

Deep Cryogenic Treatment

The entire crossover assembly is subject to revolutionary Deep Cryogenic Treatment (DCT), achieving unparalleled gains in resolution and creating a more natural, cohesive sound. Using a proprietary process, the Definition crossover is super-cooled to -190 degrees C and returned to room temperature over a controlled period. This permanently reduces internal stresses in the microstructure of the crossoverʼs component materials, leading to better signal transfer and superior resolution of fine detail. One of the largest benefits is to the solder joints, which are traditionally an area of poor crystalline structure.

DEFINITION MANUAL _03

AMPLIFIER CHOICE

Consult the product specification as this clearly shows the acceptable power range for amplifier matching to your speakers. The high peak power handling of Tannoy loudspeakers permits responsible use with more powerful amplifiers - please read the Warranty.

As with all loudspeaker systems, the power handling is a function of voice coil thermal capacity. Care should be taken to avoid overdriving any amplifier, as this will cause output overload resulting in 'clipping' or distortion within the output signal. This, if done for any extended period, will cause damage to the speakers.

Generally an amplifier of higher power that is running hard, but free of distortion, will do less damage to the loudspeaker than a lower power amplifier continually clipping. Remember also that a high powered amplifier running at less than 90% of output power generally sounds a great deal better than a lower powered example struggling to achieve 100%. An amplifier with insufficient drive capability will not allow the full performance of the loudspeakers to be realised.

CABLE CHOICE

Always use the best quality of cable available within your budget. High quality audio signals passing from the amplifier to the loudspeaker are unusual in their demands on the cable. Wide dynamic range and frequency bandwidth information has to coexist with the ability to transmit peak currents of at least 10amps, without incurring any loss or signal impairment. This explains why the sound quality of the information reproduced by the loudspeakers is so dependant on the physical properties of the cables connecting them to the amplifier.

We would recommend that you always keep the cable runs the same length for left and right speakers. Remember, cable construction can affect the sound quality so be prepared to experiment to find a cable that suits your ear and audio system.

UNPACKING

To unpack the loudspeakers from their boxes remove tape from the top then fold the flaps right back before inverting the carton and contents. Lift the carton clear of the contents then remove all inner packaging.

It is strongly recommended that you store all the packaging to allow protected transportation in future. (See fig.1)

TERMINAL PANEL

An exclusive five way terminal panel has been designed for the Definition range to optimise performance further by take advantage of the driver earthing facility. Use a shielded or screened loudspeaker cable; connecting the screening termination to the earth or 'ground' (green) terminal on the loudspeaker and to the ground or earth connection on the amplifier. Alternatively if you are not using a screened loudspeaker cable but wish to utilise the earthing facility, run a single cable between the earth or 'ground' (green) terminal on the loudspeaker to the earth (ground) connection on the amplifier. (See fig.2)

FLOOR STANDING MODELS

Definition floor-standing models perform best with carpet piercing spikes fitted. These are supplied, along with lock nuts, and should be inserted into the threaded holes in the base of the cabinet. Level the speaker and then tighten the lock nuts firmly but without using undue force. Spike locating cups are provided in the accessory pack and these may be used to protect sensitive floor surfaces.

Warning:

Ensure that the spikes are levelled and that the lock nuts are tightened firmly. The spikes should be pushed through the carpet to locate into the flooring surface by applying pressure to the top of the cabinet.

If using on a sensitive floor surface place the protective cups under the levelled spikes. Failure to do so could render the speaker unsteady and result in damage or injury should it be knocked over.

STAND MOUNTING MODELS

Stand mounting or bookshelf speakers should be located securely on stands or a shelf in an appropriate position to place the Dual Concentric™ driver high frequency unit roughly at ear height when seated in the chosen listening position. Positioning recommendations for stand-mounted speakers can be found under the section entitled Positioning and fine-tuning. For the centre speakers, locate on the plinth provided.

04_ DEFINITION MANUAL