user manual
QLight series
Maintenance
If one of the drive units in the cabinet should cease functioning and needs a replacement recone or diaphragm you are advised to remove the faulty unit from the cabinet and send it to a professional recone service authorised to recone Turbosound loudspeakers. This will ensure the continued high performance of your
Removal of the 12”/1” driver
1.Unscrew the eight countersunk screws from the two vertical battens which hold the protective grille in place. Be careful when removing the grille as it is under tension and may spring outwards when released. Set the battens, grille and fixing screws aside for later
2.Undo the eight M6 x 30mm Allen head bolts holding the driver in place and carefully pull it out and away from the cabinet. WARNING - This unit is heavy! You will notice that the 1” high frequency driver is attached to the back of the 12” low frequency driver by its screw adapter. Disconnect the cables from both HF and LF units and completely remove the driver assembly from the cabinet. Make a note of the driver polarity for later reconnection.
3.Separate the drive units by unscrewing the high frequency driver
4.To reinstate the drivers, simply reverse the above procedure making sure you observe the correct polarity when reconnecting the cables back into the terminals of the drive units.
Removal of the midrange drive unit
If the midrange drive unit requires maintenance, it will first be necessary to remove the rear panel. The midrange driver is held in place by a M10 x 25mm bolt through the rear of the cabinet into the back plate of the drive unit behind the rear panel. Once this is released the midrange horn and drive unit assembly can be removed.
1.Remove the # 10 x 1 ½” countersunk woodscrews securing the rear panel of the cabinet. The M10 bolt securing the midrange driver will now be accessible in a recess in the enclosure rear panel. Using a 17mm socket, unscrew the bolt and set aside for later
2.Unscrew the eight countersunk screws from the two vertical battens which hold the protective grille in place. Be careful when removing the grille as it is under tension and may spring outwards when released. Set the battens, grille and fixing screws aside for later