AmpliVox SW230A - Manual (Page 2)

There are three microphone inputs, which can be used simultaneously:
DYNAMIC - for standard dynamic cartridge microphones
CONDENSER - for electret or condenser microphones, which require phantom
power (supplied from the amplifier)
WIRELESS - accepts line-level output from wireless microphone receiver
(AmpliVox S1600 or equivalent)
LINE IN L+R (SEPARATE-COMBINED)
Combines the separate left and right AUX LINE IN channels. This combined signal will be
amplified and appear on both the LEFT and RIGHT channels of the SPEAKER and LINE
OUT OUTPUTS.
AUXILIARY
If you desire to add pre-recorded music or sound effects during your presentation, just plug your
CD player, tape player or computer sound card into the
LINE IN jack. The LINE IN also has its
own VOLUME and TONE control knobs, so that you may adjust the volume and tone to the
appropriate level.
OUTPUT
If you desire to tape record your speech or program, (using cable with standard phono plug)
connect the LINE OUT on the amplifier to the input on the tape recorder.
ANTENNA [SW805A]
Jack for wireless antenna. (Antenna supplied on ‘C’ Channel for mounting on either side of
amplifier or use Velcro for optional mounting locations.)
INTERNAL WIRELESS RECEIVER[SW805A](on right side of case)
Power on and off and Frequency A-B switches. Frequency should match wireless transmitter
SPEAKERS
Two separately amplified speaker jacks (4-8 ohms).
PROBLEM SOLVING
HOWLBACK is the howl or screech often heard in sound reinforcement systems. It is caused
by sound from the loudspeaker returning to the microphone. AmpliVox systems utilize proven
acoustical principles to minimize this; however, there is no way to completely eliminate
howlback under conditions of high amplification. If howlback occurs check the following:
1. User covering the head of the microphone. Hold microphone under head slots.
2. Sound can easily re-enter microphone. Keep loudspeaker turned toward audience. Note:
sound can be reflected from hard surface back through the microphone. [Turn speaker]
3. User holding microphone in a reflecting position. [Turn microphone]
4. Volume setting too high. [Reduce microphone channel volume; compensate by speaking
louder or closer to the microphone]
NO SOUND
Make sure amplifier POWER switch is turned on and red LED is lit. If switch is on and LED is
not lit, check to see that front panel connector is properly seated, and verify that the power source
is live.
IF YOU HAVE ANY QUESTIONS OR PROBLEMS PLEASE CALL OUR CUSTOMER
SERVICE DEPARTMENT AT 1-800-267-5486