Tannoy VS15 BP User Manual
VS15 BP
USER MANUAL
CONTENTS
1. Introduction
2. Unpacking
3. Connectors/Cabling
4. Amplification & Power Handling
5. Crossovers
6. Equalisation/Positioning
7. Dimensions
8. Technical Specifications
9. Rigging & Suspension
9.1 General Safety Advice
9.2 SECUR ET – VTH Pole Mount
9.3 SECUR ET – VEB Eyebolt
10. System Configurations & OEM Controllers
11. VS15BP Service Parts & Accessories
12. Warranty
13. Declaration of Conformity
1. Introduction
The Tannoy VS15BP is a compact, versatile subwoofer system, primarily designed to
extend the low frequency response of the V series loudspeakers and increase system
headroom.
The VS15BP will extend the frequency response of these systems to below 40Hz and is
capable of providing output levels normally be associated with considerably larger
enclosures.
The VS15BP comprises one high efficiency 380mm(15”) drive unit. The cabinet is
constructed from multiple-ply hardwood, which will survive the punishment that
speaker systems are subjected to on the road and in club installations. The compact
dimensions of the V15BP enable it to be used in permanent or portable applications
without being obtrusive.
The VS15BP features recessed carrying handles and blank plate for a top-mounted
stand socket, which serves as a base for locating the main full range or mid/high
speakers in the air. By using 35mm tubing the need for a tripod stand can be
eliminated.
2. Unpacking
Every Tannoy VS15BP is carefully inspected before packing. After unpacking your
loudspeaker, 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 notify your dealer
immediately.
3. Connectors/Cabling
The VS15BP is fitted with 4-pole Neutrik Speakon connectors. Speakon has the
following advantages over EP and XLR type connectors: All terminations are solderless;
this makes life easier at the time of installation or when field servicing is required.
Contacts will accept 6 sq. mm wires with an outside diameter of up to 15mm and a
current rating of 30 Amps. The pins of the 2 Speakon sockets on the input panel are
paralleled within the enclosure. Tannoy has adopted the conventional wiring standard
for the VS15BP product: -
Pin 1+ is Positive
Pin 1- is Negative
For a worldwide list of Neutrik distributors see http://www.neutrik.com/
Cable choice consists mainly of selecting the correct cross sectional area in relation to
the cable length and the load impedance. A small cross sectional area would increase
the cables series resistance, inducing power loss and response variations (damping
factor).
Connectors should be wired with a minimum of 2.5 sq. mm (12 gauge) cable. This will
be perfectly satisfactory under normal conditions. In the case of very long cable runs
the wire size should exceed this, refer to the following table for guidance:-
CABLE RUN (m) C.S.A. OF EACH
CONDUCTOR (mm)
10 2.5
4.0
6.0
25 2.5
4.0
6.0
50 2.5
4.0
6.0
100 2.5
4.0
6.0
4. Amplification & Power Handling
As with all professional loudspeaker systems, the power handling is a function of voice
coil thermal capacity. Care should be taken to avoid running the amplifier into clip
(clipping is the end result of overdriving any amplifier). Damage to the loudspeaker will
be sustained if the amplifier is driven into clip for any extended period of time.
Headroom of at least 3dB should be allowed. When evaluating an amplifier, it is
important to take into account its behaviour under low impedance load conditions. A
loudspeaker system is highly reactive and with transient signals it can require more
current than the nominal impedance would indicate.
Generally a higher power amplifier running free from distortion will do less damage to
the loudspeaker than a lower power amplifier continually clipping. It is also worth
remembering that a high powered amplifier running at less than 90% of output power
generally sounds a lot better than a lower power amplifier running at 100%. An
amplifier with insufficient drive capability will not allow the full performance of the
loudspeaker to be realised.
It is important when using different manufacturers’ amplifiers in a single installation
that they have very closely matched gains, the variation should be less than +/- 0.5dB.
This precaution is important to the overall system balance when only a single active
crossover is being used with multiple cabinets; it is therefore recommended that the
same amplifiers be used throughout.
CABLE
RESISTANCE Ω
0.14
0.09
0.06
0.35
0.22
0.14
0.69
0.43
0.29
1.38
0.86
0.58
% POWER LOSS
INTO 8Ω LOAD
1.7
1.1
0.73
4.3
2.7
1.8
8.6
5.4
3.6
17.0
11.0
7.2
% POWER LOSS
INTO 4Ω LOAD
3.5
2.2
1.5
8.6
5.4
3.6
17.0
11.0
7.2
35.0
22.0
14.0
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