Band Shoppe LONG RANGER IV Operating Instructions And Troubleshooting Manual - page 7
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PH 800.457.3501 • BANDSHOPPE.COM
UPDATED 10.07.2004
LONG RANGER IV: OPERATING INSTRUCTIONS & TROUBLESHOOTING GUIDE
7
USING ADDITIONAL SPEAKERS
CAUTION!
ALWAYS TURN THE LONG RANGER POWER OFF BEFORE PLUGGING IN OR UNPLUGGING EXTERNAL SPEAKERS
In some cases, the proper coverage of an audience requires a second speaker. The optional H300 is identical to the Long Ranger speaker and can be
used to spread the sound over a broader area.
The output jacks for external speakers are located on the Long Ranger front panel. The left and right jacks operate differently. The right jack does
not disconnect the built-in speaker when a plug is inserted into it. This means that the built-in speaker and the external speaker will both operate
together. The left output jack disconnects the built-in speaker and powers only the external speaker. Internal circuits and switching networks
keep track of the number of speakers hooked up and select the amplifi er impedance so that the full power of the amplifi er is always available. It is
important that you use only an 8 Ohm speaker in these jacks. If you are not using Lectrosonics extension speakers, check the speaker for the
proper rating before connecting to the Long Ranger.
The effi ciency of different makes and models of speakers varies signifi cantly. Even though two different speakers are both rated at 8 ohms, their
loudness could be quite a bit different. The other specifi cation to compare when considering the use of another speaker is the effi ciency rating.
The horn built into the Long Ranger is rated at 107 dB SPL (sound pressure level) at one meter with a one watt input. Check this specifi cation on
the speaker you are considering. A speaker with a lower “dB’ number will not be as loud as the horn built into the Long Ranger.
The H300 speaker is typically used in conjunction with the built-in speaker to increase the sound-coverage area. This is done by plugging the H300
into the right speaker jack, so that both speakers will work together. In a large area, such as a football fi eld, try to arrange the speakers so that the
listeners are not in the direct sound fi eld of both speakers. If a listener can hear two speakers located at different distances, a distrancting “echo
effect” occurs. Put the speakers close to one another in a central location and aim them in opposite directions to broaden the coverage pattern.
When using two external speakers simultaneously, the built-in speaker will be automatically disconnected to prevent overload of the amplifi er
since a plug has been inserted into the left-hand jack.