Avsl Qtx QRPABT Series User manual

QRPABT
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

QR12PABT QR15PABT User Manual
Introduction
Thank you for choosing the QR series portable PA unit with Bluetooth. Please read this manual
prior to use to avoid damage to the item.
This versatile portable PA unit is packed with features in a compact, manageable enclosure
and is suitable for a wide array of applications ranging from presentations to karaoke.
•Mains, external or internal D.C. power supply
•Internal 12V rechargeable battery
•VHF wireless microphones included
•Microphone inputs (6.3mm jack)
•Master 2 band EQ and Echo effect for microphones
•Internal USB/SD digital audio media player
•Bluetooth receiver
•Mic talk-over function
•Wireless remote control for media player
•Integral trolley with telescopic handle
•Integral 35mm pole mount
•AUX line input
This product contains no user-serviceable parts so make no attempt to try to fix or modify this
item yourself as this will 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 mains, ensure that the supply voltage is correct and the mains lead is in
good condition.
Avoid ingress of water or particles into the enclosure.
If the mains or D.C. fuse blows, refer the unit to qualified service personnel
If the VHF microphones are to be unused for a long period of time, remove the batteries and
store for later use.
Placement
Keep the unit out of direct sunlight and away from heat sources.
Place the unit in an upright position during use and storage.
Keep the unit away from moisture or dusty environments.
Cleaning
Use a soft cloth with a neutral detergent to clean the cabinet, panel and controls.
To avoid damage, do not use solvents to clean this equipment.

QR12PABT QR15PABT User Manual
Package Contents
Please check the contents to ensure that the product has been received in good condition.
•QRPABT portable PA unit
•2 x VHF handheld microphones
•Mains power lead
•IR Remote control for media player
•User manual
If you find any accessory is missing or the product has arrived with any problems, please
contact your retailer at once.
Rear panel
Connection
Your new QRPABT portable PA unit may arrive with you with the internal battery charged.
Before connecting to the mains, switch the unit on and check the POWER LED. If it is green,
there is charge in the battery. If it is red, then you will need to charge the battery 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 control
5. TREBLE EQ
6. VHF microphone volume controls
7. RCA LINE IN input
8. 6.3mm jack Guitar/MIC 1 input
9. 6.3mm jack MIC 2 input
10. 3.5mm LINE IN input
11. External 12-15Vdc power input (4A min.)
12. Media player LCD display
13. Media player mode/transport controls
14. BASS EQ
15. Music volume control
16. Talk-over switch
17. VHF receiver power switch & LED
18. RCA MIX OUT line output
19. Power/Charge LED indicators
20. Power switch
21. IEC mains inlet & fuse holder

QR12PABT QR15PABT User Manual
Powering Up
Turn the VOLUME, ECHO and MIC VOLUME 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).
Switch VCV (voice-controlled volume) off.
Your QR-series PA unit should now be ready to operate.
VHF Wireless Microphones
Insert the supplied 9V batteries into the handheld microphones by carefully unscrewing the
base of each and connecting the “+” and “-”terminals or the battery to the corresponding
clips inside the microphone body, taking care to observe correct polarity.
With the VOL A and VOL B controls turned down, press the VHF ON/OFF button in so that the
VHF POWER LED lights.
Switch on each wireless mic in turn –the RF LEDs should light as a result.
If the LED on the transmitter lights dimly, change the battery.
Gradually increase VOL controls, testing each mic in turn for output 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 or boosted by turning clockwise.
When not in use, switch the wireless microphones off.
External Inputs
In addition to the unit’s own VHF microphones, 6.3mm jack inputs are provided to connect
external wired or wireless microphones, which are both governed by the MIC VOLUME control.
If required, the music level can be automatically muted when speaking into a microphone by
switching the Talk-over on.
Also, twin RCA and 3.5mm jack input are provided for line input sources such as CD player or
mp3 player. To use these, set the MODE switch on the USB/SD player to “LINE IN”
Adjacent to this twin RCA input is a twin RCA line output carrying the overall main mix.
The AUX is governed by the VOLUME control at the top of the panel.

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.

QR12PABT QR15PABT User Manual
Specifications
Model
QR12PABT
QR15PABT
Power supply
220-240Vac 50/60Hz / external 12Vdc / internal battery
Main driver
30cm (12”)
38cm (15”)
HF unit
2.5cm (1”) titanium compression driver
VHF mic frequencies
174.1MHz + 175.0MHz
RF power
10mW
Output power
50W + 50W (LF + HF)
Battery life
Up to 8 hours
Dimensions
570 x 350 x 310mm
685 x 440 x 380mm
Weight
14.0kg
18.4kg
Troubleshooting
No output and no LEDs
lit
Check POWER switch is on
Check battery is not drained fully
Check mains lead is connected
Check mains or D.C. fuse hasn’t blown
Power LED lit but no
VHF output
Check 9V batteries in wireless transmitters
Check wireless transmitters are switched on
Check VHF POWER is switched on
Check MIC VOLUME is not turned down
Check RF A and RF B LEDs for radio signal
Music off or 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 connected properly
Check volume and on/off switch on external mic or line source
Check VOLUME or MIC VOLUME control is not fully down
Does "LINE IN" show on LCD for AUX input? (Press MODE)
Disposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other household or commercial waste at the end of its
useful life. The goods must be disposed of according to your local council guidelines.
Errors and omissions excepted. Copyright© 2020. AVSL Group Ltd.
Unit 2-4 Bridgewater Park, Taylor Rd. Manchester M41 7JQ