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QR12PABT QR15PABT User Manual 

Internal USB/SD player & Bluetooth receiver 
 

The QRPABT 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 

 

To connect a smart phone or other Bluetooth device to the DELTA-50 media player, open the 
Bluetooth menu on your device 

and search for “PA SYSTEM”. Pair with this ID and connect (re

-

name if desired) in order to be able to play audio from the Bluetooth device to the DELTA-50.  
Pressing the MODE button will select between FM, Bluetooth and USB/SD playback sources. 

(Note: there is also an AUX setting which is not used, since the mixer has separate line inputs) 
 

Mute, volume and track navigation can be achieved via the media player control panel. 
Bluetooth pairing is always available for a single device so long as the device is within 

reception range. It may be necessary to re-connect if the device has moved out of range and 
disconnected. 
 

In addition to the panel controls, an infra-red remote control is provided for the media player 
which adds some further functions to allow greater control over the media player.  

To operate, remove the clear plastic tab from the remote to activate the battery. 

 

Charging the battery 
 

When not in use but connected to the mains, if the POWER switch is in the 

off

 position, the 

internal battery will be re-charged from the mains supply. This can be observed by the 

CHARGE LED which will light orange when charging. When fully charged, the CHARGE LED will 
change to green.

  

Summary of Contents for Qtx QRPABT Series

Page 1: ...BT Portable PA Units Order ref QR12PABT 178 847UK QR15PABT 178 848UK User Manual VERSION 2 1 Caution Please read this manual carefully before operating Damage caused by misuse is not covered by the warranty ...

Page 2: ...ll invalidate the warranty We recommend you keep the original package and proof of purchase for any possible replacement or returned demand Warning To prevent the risk of fire or electric shock do not expose this appliance to rain or moisture To prevent electric shock do not remove the cover No user serviceable parts inside Refer servicing to qualified service personnel Safety Prior to connecting ...

Page 3: ...ry before using away from a mains supply see Charging the battery below Connect the QRPABT portable PA unit to the mains using the appropriate mains IEC lead supplied You may otherwise opt to connect the spring terminals at the rear to an external 12Vdc supply such as a car battery or use the internal battery if charged 1 USB input 2 SD card slot 3 Microphone ECHO level control 4 MIC inputs volume...

Page 4: ...tput through the 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 a pre set echo function for singing and special effects BASS or TREBLE can be cut by turning anti clockwise ...

Page 5: ...nu on your device and search for PA SYSTEM Pair with this ID and connect re name if desired in order to be able to play audio from the Bluetooth device to the DELTA 50 Pressing the MODE button will select between FM Bluetooth and USB SD playback sources Note there is also an AUX setting which is not used since the mixer has separate line inputs Mute volume and track navigation can be achieved via ...

Page 6: ...cutting out Check that Talk over is not switched on Power LED lit but no USB SD player output Check USB or SD has mp3 or wma audio files FAT32 formatted Check USB or SD is connected properly Press MODE button and try II button Check VOLUME is not turned down Press and hold VOL button Check LCD display to see moving numbers Power LED lit but no sound from external inputs Check leads are OK and conn...

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