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39
Community XLT / XLTE Series Owner’s Manual
No bass.
(Note: Model 47 has 2 LF drivers wired
in parallel.)
Low frequency driver is not
functioning.
Disconnect the 2 wires from the amplifier, switch the loudspeaker to
BIAMP mode, and, using an ohmmeter, measure the resistance
between the wires. If the meter reads an open circuit, the LF driver
may not be working. For the model 47 both drivers may not be
working. Replace as needed.
Bass is weak on model 47.
(Note: Model 47 has 2 LF drivers wired
in parallel.)
One LF driver is not
functioning.
Disconnect the 2 wires from the amplifier, switch the loudspeaker to
BIAMP mode, and, using an ohmmeter, measure the resistance
between the wires. If the meter reads 6 Ohms, one LF driver may not
be working. 3 Ohms is the normal reading. Replace as needed.
Low or no volume for the midrange.
(Model 46 only)
Mid frequency driver or
crossover is malfunctioning.
Listen at low level to the mid-range driver located in the middle of the
enclosure. If some sound is heard from the driver and it is not
distorted, it is probably a crossover problem. If distorted sound or no
sound is heard, either the crossover or the driver may not be working
properly. Repair or replace as needed.
High frequencies are too weak or too
bright.
High Frequency Level switch
needs adjustment
The High Frequency Level switch on the input panel has 2 positions.
The +4 dB position provides more highs and the Flat less highs.
No high frequencies. PASSIVE / BIAMP switch in the
wrong position.
Move the switch on the input panel to the PASSIVE (up) position.
No midrange and highs on model 46. PASSIVE / BIAMP switch in the
wrong position.
Move the switch on the input panel to the PASSIVE (up) position.
No high frequencies. High frequency driver or
crossover is malfunctioning.
Listen at low levels, to the high frequency driver. If some sound is
heard from this area and it is not distorted, it is probably a crossover
problem. If distorted sound or no sound is heard, the driver or
crossover may not be working properly. Replace as needed.
SYMPTOMS - BIAMP MODE PROBABLE CAUSE WHAT TO DO
Bass is distorted and highs are muffled. 1/4 in. jacks instead of Neutrik
jack is being used.
For BIAMP mode a Neutrik input jack must be used. One of the 1/4 in.
jacks can function as the LF input but if both the HF and LF amplifiers
are plugged into the 1/4 in. jacks, this will short the amplifiers together
and no signal will be fed to the HF. This can also damage your
amplifiers.
Using an electronic crossover, bass is
weak and highs are muffled.
The wiring for LF and HF
sections is reversed.
Check wiring to the loudspeaker and make sure the LF is going to pins
1+ / 1- and the HF is going to pins 2+ / 2- on the Neutrik connector.
Using an electronic crossover, bass is
weak and highs are muffled.
The wiring for LF and HF
sections is reversed.
Check wiring from crossover to amplifiers and amplifiers to
loudspeaker. Make sure the LF signal connects to the loudspeaker’s LF
input and the HF signal connects to the loudspeaker’s HF input.
Poor sound quality. Incorrect polarity connections. Check the connections to the LF and HF sections. Verify the polarity is
correct.: + and - amplifier outputs connect to corresponding + and -
on loudspeaker’s LF and HF inputs on the Neutrik connector.
Sound OK but HF amplifier level
cannot be adjusted.
PASSIVE / BIAMP switch in the
wrong position.
Move the switch to the BIAMP (down) position.
Bass is weak. LF and HF amplifiers are not
properly adjusted.
Either turn up the LF amplifier or turn down the HF amplifier to get
more lows.
Bass is weak on model 47. LF driver is not functioning. Disconnect the 2 wires from the LF amplifier and, using an ohmmeter,
measure the resistance between the wires. If the meter reads 6 Ohms
one LF driver may not be working. 3 Ohms is the normal reading.
Replace as needed.
No sound or no bass or no highs using
Neutrik connector
Neutrik connector not seated Make sure Neutrik connector is fully seated by twisting it clockwise
about 1/4 turn after plugging it in. Then engage the locking ring.
No bass. Wrong connection. Make sure LF amplifier is either wired to pins 1+ /1- on the Neutrik
connector or is connected to one of the 1/4 in. jacks.
No bass. LF driver is not functioning. Disconnect the 2 wires from the LF amplifier and, using an ohmmeter,
measure the resistance between the wires. If it reads an open circuit,
the LF driver may not be working. Replace as needed.
No bass. LF amplifier is not on or
loudspeaker disconnected.
Check that the LF amplifier is turned on and that the loudspeaker is
properly connected to the amplifier.
No bass. LF section of electronic
crossover is not working.
Check that the electronic crossover has LF output and that it is
properly connected to the amplifier.
Midrange and highs are weak. HF and LF amplifiers are not
properly adjusted.
Either turn up the HF amplifier or turn down the LF amplifier to get
more highs.
No midrange or highs. HF amplifier is not on or
loudspeaker disconnected.
Check that the HF amplifier is turned on and that it is properly
connected to the loudspeaker pins 1+ / 1- on the Neutrik connector.
No high frequencies. HF amplifier is not on or
loudspeaker disconnected.
Check that the HF amplifier is turned on and that loudspeaker is
properly connected to the amplifier.