User manual JBL G400

[. . . ] For example, if your listening position is 8 to 12 feet (2. 5 to 4 m) from each speaker, the two systems should be about 8 feet (2. 5 m) apart. Placing the loudspeaker in a corner or against a wall will result in the strongest (but not necessarily the most accurate) bass. [. . . ] It does not make a difference which of the two conductors of wire go to (+) and (­) on the speakers and amplifier, as long as both speakers are connected identically. Push down on the button below the terminal and insert the wire, or the banana plug, through the hole (see Fig. (+) (­) CONNECTIONS To connect your JBL loudspeaker systems to a receiver or an amplifier, use two-conductor insulated wire. Your JBL dealer can recommend suitable cables, or you can buy wire at most hardware stores. If your speakers are more than 30 feet (10 m) from your receiver or amplifier, use larger diameter wire. Connections are made at the terminals located on the back of the loudspeaker system. The terminals accept bare wire or dual banana plugs, either of which will provide easy, secure connections. Amplifier/ Receiver +L+R Fig. Now make the hookup wires for both speakers this length, even if one loudspeaker is much closer to your amplifier than the other. This will help maintain proper signal balance. 2 For each channel, the red terminal on the loudspeaker should be connected to the red or (+) loudspeaker connection terminal on the receiver or amplifier, and the black to the black or (­). Connecting the loudspeakers in this manner ensures that they will be in phase; that is, work together rather than in opposition. Connecting the loudspeakers out of phase will not damage them, but will result in less bass and poor imaging. G SERIES LOUDSPEAKERS TROUBLESHOOTING The vast majority of new speaker "malfunctions" end up being traced to connections or switch settings. Check the following tips first, before requesting service. No sound at all or very faint sound from both speakers 1. [. . . ] New materials, production methods and design refinements are introduced into existing models without notice as a routine expression of our design philosophy. For this reason, JBL loudspeakers may differ in some respect from their published specifications and descriptions, but will always equal or exceed the original specifications unless otherwise stated. JBL Consumer Products, Inc. [. . . ]