Connections - Tannoy 5.1 Sub 15 Owner's Manual

It is recommended that you start by positioning the subwoofer in front of the mix position, between the main left and right
speakers, but not at the centre or quarter points between the two sidewalls. If possible place the subwoofer close to the front
wall, this will increase the output level by 3dB and avoid the possibility of cancellation effects caused by this boundary.
The corner is a common position for a subwoofer. This will result in a 6dB gain in level; however this placement is likely to excite
more standing waves than other positions, resulting in an uneven or 'boomy' bass response. This position can work in some
rooms, especially if opposing walls are not parallel to each other.
The deciding factor in placing the subwoofer should be your own ears. You should be trying to achieve a smooth, even bass
response, not just massive amounts of low frequency energy. By taking the time to position the subwoofer, you will be able to
experience a true representation of your mixes. Once you have positioned the 5.1 SUB 15, it will be necessary to adjust the
volume level to ensure that there is a good balance between the subwoofer and the other monitors in the system.
The sub 5.1 SUB 15 is supplied with a spike kit. For best results on a carpeted floor, screw the spikes into the inserts underneath
the cabinet and adjust until level. On a polished wooden floor, or other surface likely to be damaged by spikes, use the discs
included under the spikes, to prevent damage to the surface.

3.2: CONNECTIONS

To begin with, place the subwoofer in a position where you have easy access to the rear amplifier panel. Plug your subwoofer
into the mains outlet, preferably the same outlet, or at least the same circuit as your console, amplifier and other associated
equipment. Do not switch the unit on until all connections have been made and checked. When the unit is receiving power
and the power switch is in the "On" position, the green LED next to the switch will be lit.
All 5 audio input connectors on the 5.1 SUB 15 are balanced XLR. Balanced signals are less sensitive to AC hum and radio
interference, therefore should be used whenever possible. The XLR connectors are wired according to the standard convention
shown below
PIN 1 GROUND/SHIELD
PIN 2 HOT (+)
PIN 3 COLD (-)
The 5.1 SUB 15 can also be used with equipment without balanced outputs. To connect an unbalanced source, you can use a
cable where pin 3 on the XLR connector is connected to the shield of the unbalanced connector as shown in Figure 3.1.
Fig. 3.1.
2 1
3
5