Turbosound 50 Manuel D’Utilisation

The constant voltage Impact 50T is fitted with a 4–way input connector. Always 
connect the speaker cable corresponding to the negative terminal on the 
amplifier to the blue terminal. The cable corresponding to the positive terminal 
should be connected to one of the following terminals: 

 

70 volt line 

100 volt line 

RED 

30W 

200 ohms 

60W 

200 ohms 

YELLOW

15W 

400 ohms 

30W 

400 ohms 

GREEN 

7.5W 

800 ohms 

15W 

800 ohms 

BLUE 

Common terminal 

Common terminal 

Good quality loudspeaker cable should always be used throughout the 
installation, with a minimum wire size of 12 gauge (1.5mm

2

), and preferably 10 

gauge (2.5mm

2

) for longer runs, keeping the run as short as possible. This helps 

to avoid wasting amplifier power in the resistance of the cable. High cable 
resistance also lowers the 

 of the amplifier that affects its ability 

to control loudspeaker cone movement.

The Impact 50 has been designed with a rear facing port, which reinforces the 
low frequency response of the speaker. Increased low frequency performance 
can be achieved by placing the Impact 50 near to a wall. Even greater benefit is 
achieved if the unit is placed in a corner. The optimum distance from the rear of 
the enclosure to the wall is between 30–100 mm. Using the WB-50 adjustable 
mounting bracket will ensure the loudspeaker is located at an ideal distance 
from the wall. 

The enclosure may be installed using a variety of different methods: 

♦

 

Using the WB-50 wall bracket supplied, 
which allows for horizontal and vertical 
adjustment. Disassemble the WB-50 bracket 
and attach the speaker plate to the Impact 50 
using the M6 screws provided. Attach the 
wall plate at the desired position and then 
re–assemble the bracket, tightening the 
thumbwheel after positioning the speaker to 
give the desired coverage.