Tannoy Precision Owner's Manual - page 6
06_ PRECISION MANUAL
BI-AMPING
Bi-Amping extends the principle of bi-wiring one stage further. In this connection option separate power amplifiers
are used for bass and treble signals in each loudspeaker. Four mono (or two stereo) amplifiers of the same type
are required for a stereo pair of loudspeakers. Ensure that the link plates between the loudspeaker terminals are
removed and that correct polarity is maintained throughout.
If two stereo amplifiers are used, it is recommended that one amplifier supply bass information to left and right
loudspeakers and the other, the treble information. (See Fig. 6)
CONNECTION OF EARTH OR ‘GROUND’ LEAD
Use of a shielded or screened loudspeaker cable will offer further performance advantages when used with the
five-way terminal panel. The screening termination should be connected 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.
Avoid potential damage to your amplifier - ensure that all connections are secure and the polarity is correct in all
wiring. (Method illustrated on all terminal panel sketches)
POSITIONING AND FINE TUNING
To get best results from your new Tannoy Precision loudspeakers it is worthwhile spending a little time finding the
optimum setup configuration.
Begin by angling the speakers towards your chosen listening position, usually this is on the centre line of the room,
so that when seated you can just see the inner side panel of each speaker. The front of the loudspeaker should
not be obstructed in any way. The loudspeakers should be located between 1.5 to 4.5 metres (5 ft to 15 ft) apart -
with the listening position set slightly further away than the speakers are apart. Avoid positioning the loudspeakers
in corners of the room, as this will have a negative effect on performance. Ideally, maintain a distance of at least
0.5 metres (20”) from the rear wall, and 1 metre (39”) from the side. (See Fig. 7)
With the speaker in its listening position, rock the loudspeaker gently from side to side so that the spikes find their
way through the weave of the carpet and on to the solid surface below. Once fine adjustments have been made to
the spikes, to level the loudspeaker and ensure stability, tighten the lock nuts firmly but without using undue force.