User manual TANNOY PRESTIGE CANTERBURY SE

[. . . ] OWNER'S MANUAL Estd. 1926 In combining the best of traditional crafts and the latest production and design skills Tannoy presents the Canterbury loudspeaker. Cabinets in selected hardwoods are hand finished and polished to a standard that is unsurpassed. The Canterbury 15 SE is a truly special loudspeaker made only to order with certification and personalised nameplate. The speaker uses the classic Alcomax 3 version of the famous Tannoy Dual ConcentricTM driver. [. . . ] Connect the Left HF+ and HF- to the appropriate + and - left speaker HF terminals. For optimum performance, the earth connection on the terminal panel should be connected to the amplifier chassis earth or other ground point. This screening effect can give an improvement in detail clarity, depending on the amplifier used. Optimum results are achieved using a screened loudspeaker cable designed for such a system, such as the Tannoy TLC. If not, switch off and remake the connections. Cables High quality audio signals passing from power amplifier to loudspeaker are unusual in their demands on cable. Frequencies from 20Hz to 20kHz (10 octaves or a ratio of 10, 000:1) and currents of 80dB dynamic range (again a ratio of 10, 000:1) have to coexist. The cable also has to be capable of transmitting peak currents of at least 10 Amp without causing losses greater than 0. 001 Amp (10 Amp divided by the ratio 10, 000). If the overall high frequency sound quality seems too prominent the -1. 5 or -3 positions for the ENERGY control should be tried. If the sound appears subdued in the treble region +1. 5 or +3 settings may be preferred. Once the ENERGY control setting has been established the ROLL OFF control can be adjusted to reduce or slightly increase the extreme high frequency content if necessary. Remember the changes that can be made by moving either control from one position to another are subtle. They may not easily be heard if the programme material has very little content in the frequency band under consideration. The correct setting will be found when the loudspeakers are no longer evident and only the musical performance is heard. The low frequency output of the loudspeaker in the range 25 to 100Hz may be adjusted by operating the two sliding port openings on each side of the cabinet. Each port may be varied from fully open (full distributed port operation, both port slides in upper position) to fully closed (infinite baffle or acoustic suspension operation, both port slides in downward position). When both ports are fully open a very full rich bass response will be heard, when fully closed the bass response becomes more subdued. The correct setting is a matter for personal preference and local acoustic conditions. With one port open and the other closed the bass response will be 'level' and this position should be used for initial evaluation. How to adjust the Variable Distributed Port System for your music in your room Loudspeaker in corner Loudspeaker clear of wall Loudspeaker against wall PORTS Closed Open Either Closed or One Open The above suggestions are for guidance only. The music you listen to is also important - in general classical and light music will tend to sound more natural with the ports closed. VDPS gives more choices of loudspeaker position in any room, this providing the opportunity to optimise placement for the best stereo effect. The aural effect of the variable distributed port may not be obvious unless the programme material contains bass frequencies within the band 25 to 100Hz. 6 Running in Like all loudspeakers, the drive unit in your Canterbury 15 SE requires a while to reach optimum performance, as the stresses in the materials relax - especially in the suspension system. For this reason, it is beneficial to run the system at fairly high levels at normal room temperature, for approximately 20 hours to achieve best results. Tannoy Dual ConcentricTM Drive Unit One of the unique advantages of the Tannoy Dual ConcentricTM principle is that the low and high frequency sound radiation is generated on the same axis. [. . . ] If necessary mask off the side grilles carefully with clean paper, tucking it in and around the sides of the grilles. In common with all solid wood furniture, exposure to extremes of heat, cold and varying humidity will cause the wood to ease slightly. Therefore it is recommended that the loudspeaker is protected from environmental extremes to guard against any such occurrence. 8 Faultfinding Tannoy loudspeakers are designed and manufactured to be reliable. When a fault occurs in a hi-fi system the effect is always heard through the loudspeakers although they may not be the source of the fault. [. . . ]