Tannoy VLS Serie Guide De Prise En Main page 4

Unpacking
Each Tannoy VLS Series loudspeaker is carefully
tested and inspected prior to shipment. After
unpacking, please inspect for any exterior
physical damage, and save the carton and
any relevant packaging materials in case the
loudspeaker again requires packing and shipping.
In the event that damage has been sustained in
transit, please notify your dealer and the shipping
carrier immediately.
Connectors and cabling
VLS Series loudspeakers are connected to the
amplifier (or to other loudspeakers in a 70/100 V
system or series/parallel configuration) using a pair
of internally paralleled barrier strip connectors.
All VLS Series models can be operated as
either a low impedance loudspeaker or within
a 70.7/100 V distributed system. The operation
mode is selectable via a single switch located on
the rear of the cabinet (see below).
Operation in low impedance mode often will require
use of larger diameter cables than are needed for
a 70/100 V distributed system. Please consult the
full VLS Operation Manual for recommended cable
types for various applications.
Switch for Low-Z and
transformer tap selection
A multi-position rotary switch on the rear input
panel selects either the low-impedance operating
mode or the high-impedance modes (70 V or
100 V) with available transformer taps. When
using VLS Series loudspeakers in distributed line
systems, the transformer can be tapped with
available power levels shown in the table below:
70 V
5 W
9.5 W
19 W
37.5 W
75 W
150 W
All transformer primaries should be connected in
parallel to the output of the amplifier. The summed
total power rating in watts of the selected tap
settings for all connected loudspeakers must
not exceed the total output power rating of the
connected amplifier output channel in watts.
It is recommended that a generous power
safety margin (minimum 3 dB headroom) be
maintained between the total loudspeaker
power requirements and the amplifier output
capacity to avoid continuous amplifier operation
at full rated output.
4
100 V
9.5 W
19 W
37.5 W
75 W
150 W
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