Please read the following instructions carefully before installing your SoundTube
speaker. If you have any questions regarding
installation that are not answered in the following directions, please contact your local sound contractor or the SoundTube
technical support team. Contact information can be found on the back of the manual.
Secret Sound speakers come ready to install, and include the following components:
1 Black Steel Coupling with a Brass Reducer
The recommended method of assembling the speaker is to rst slip one black rubber washer onto the threaded nipple at the
top of the speaker stem. Next, insert the threaded nipple and speaker wire through the hole in the parabolic reector and slip
the remaining rubber and steel washers onto the end of the nipple protruding through the parabola. Now thread the brass
reducer and coupling onto the nipple and hand tighten rmly. The speaker can now be handled as a unit.
The Secret Sound installation is similar to that of a ceiling-mounted electrical lamp. The black steel coupling has 1/2” inside
threads which can be attached to standard rigid electrical conduit with 1/2” outside threads. This conduit is generally mounted
directly to the ceiling using a standard electrical junction box. Once you have mounted your rigid conduit from the ceiling, bring
the speaker wires from the sound source through the conduit so approximately two inches of wire are protruding from the
threaded bottom end. Before connecting the speaker, position it on a steady ladder or scaffold near the end of the ceiling-
mounted conduit. Now connect the wire ends from the coupling to the ends of your wire coming from the sound source.
Once the wires are connected, “pre-rotate” the speaker 6 or 8 times counter-clockwise. This will prevent the speaker wire
connection from becoming too twisted when threaded onto the coupling. Thread the coupling onto the end of the conduit and
hand-tighten rmly. The speaker is now ready to operate. The speaker can be mounted at any height off the oor, with minimal
affect on the diameter or quality of the beam of focused sound. The parabolic reector can be painted without affecting the
speaker performance, although it is recommended that the underside be painted with a gloss nish to ensure optimum sound
