Lectronics LongRanger4 Operating Instructions Manual - Front Panel
5
Portable Wireless Sound System
Rio Rancho, NM – USA
FRONT PANEL
12V DC EXT POWER
A special jack used to connect an external 12 Volt DC source to the unit to substitute for the “on-board” battery pack.
It is most commonly used for connecting the Long Ranger to a vehicle cigarette lighter or 12V DC auxiliary recep-
tacle. When an external power source is connected to this jack, the on-board battery pack is automatically discon-
nected. Connectors and power supply cables are available from electronics parts suppliers such as Radio Shack.
EXTERNAL 8 OHM SPEAKERS
Two jacks which are used to connect external 8 ohm loudspeakers such as the Lectrosonics H300 re-entrant horn.
This jack can also be used to power other brands of loudspeakers, but be sure that the speaker has a rated imped-
ance of 8 ohms. The left-hand jack disconnects the built-in horn when the plug is inserted. The right-hand jack will
operate the internal horn along with the external speaker. The efficiency of different makes and models of speakers
varies significantly. Even though two different speakers are both rated at 8 ohms, their loudness could be quite a bit
different. The other specification to compare when considering the use of another speaker is the efficiency 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 specification 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.
OFF
RF
12V DC
OUTPUT
CHARGE UNTIL
LAMP GOES OUT
POWER
AUX IN/OUT
MIC
LINE
WIRELESS
MICROPHONE
VOLUME
AUXILIARY
INPUT
VOLUME
MOD
LEVEL
L o n g
R a n g e r
DCR15/2AU
CHARGER
USE
ONLY
FAST CHARGE
CIRCUITRY
12V DC
EXT POWER
EXTERNAL
8 OHM SPEAKERS
MAIN HORN
OPERATES w/
DISCONNECTS
MAIN HORN
L o n g
R a n g e r
FAST
CHARGE
LECTROSONICS
PROFESSIONAL WIRELESS
Figure 1 - Long Ranger 4 Control Panel
Figure 2 - Long Ranger 4 Front Panel