178.808UK User Manual
Power Up
Turn VOLUME, ECHO, MIC VOLUME and VHF MIC controls down (anti-clockwise) and turn the POWER switch on (the
power LED should light). BASS and TREBLE controls should remain pointing vertically (12-o-clock position)
–
these can be
altered later to give the overall appropriate tone shape. Your DELTA-50 desktop PA unit should now be ready to operate.
VHF Handheld Microphones
Insert the supplied AA batteries into the handheld microphones by carefully unscrewing the base of each and aligning the
“
+
”
and
“
-
”
ends of each cell as imprinted in the battery compartment. Take care to observe the correct polarity.
Press the VHF ON/OFF button on the DELTA-50 so that the VHF POWER LED lights.
Switch on each wireless mic by sliding up the switch fully
–
the RF LEDs on the DELTA-50 unit should light as a result
If the LED on the handset does not light or stays on dimly lit, change the battery and try again.
Gradually increase VHF VOL control, testing each microphone in turn for output through the DELTA-50 speaker.
Take care not to incur “feedback” (howling or screeching sound through the speaker) by keeping
the microphone a
sensible distance from the speaker and pointing away from the speaker so that it
doesn’t
“hear”
the speaker output.
Turning the ECHO control clockwise introduces the echo effect for singing and special effects.
When not in use, switch the wireless microphones off. Remove batteries if not being used for long periods of time.
External Inputs
In addition to the unit’s own VHF microphones, 6.3mm jack inputs are provided to connect external microphones
, which
are both governed by the MIC VOLUME control.
A VCV switch activates the Voice Controlled Volume feature.
This function gives priority to microphones over playback, so that announcements are more easily heard
When the VCV is
on, any sound through the microphones will cause the music playback to “duck” (drop in volume)
The music volume is restored after there is no sound through the microphone (after a short, preset period of time)
Also, an RCA LINE IN input is provided for line input sources such as CD player or personal audio player.
To use this input, select the AUX input mode using the media player MODE button
The LINE IN is governed by the VOLUME control at the top of the panel and volume settings in the media player.
Below the RCA connectors is a 3.5mm jack input which operates in a similar way for a smart phone or mp3 player.
Above the LINE IN input is a pair of RCA connectors for MIX OUT, carrying the overall main mix to connected equipment.
Internal USB/SD player & Bluetooth receiver
The DELTA-50 onboard media player can play back files from USB/SD/FM media or a paired Bluetooth device.
Insert a USB memory stick or an SD card with compressed digital audio files stored on it into the relevant slot on the top
panel. Playback will normally start automatically from the last media inserted (USB or SD).
If the LCD display shows a jack plug, press the USB/SD button and check that the LCD display shows that media is being
read from the USB or SD device. If not, press the
button or try removing and re-inserting the memory device.
Increasing the Master Volume control (21) should result in the audio being played through the speakers.
Panel controls are detailed below…
MODE
switches input between USB/SD/FM media or Bluetooth
press for previous track
press for next track
Repeat mode
Play/Pause playback
