Qtx QR15PA User Manual

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QRPA

Portable PA Units

Order ref: QR10PA (178.840)

QR12PA (178.843)

QR15PA (178.846)

User Manual

VERSION 1.0

Table of Contents

Questions and Answers:

E
Elizabeth BrockSep 8, 2025
What to do if Qtx Speaker System Power LED is lit but there is no USB/SD player output?
- L
  Linda StewartSep 8, 2025
  If the power LED is lit but there's no output from the USB/SD player, try the following: * Ensure that the USB or SD card contains the correct audio files and is properly connected. * Press the MP3/LINE button and try the >II button. * Make sure the VOLUME isn't turned down. Press and hold the “VOL +” button. * Check the LCD display to see if the numbers are moving.
S
Samantha JonesSep 12, 2025
How to fix Qtx Speaker System when power LED is lit but there is no sound from external inputs?
- E
  Eric HarringtonSep 12, 2025
  If the power LED is lit, but you're not getting any sound from external inputs, here are a few things to check: * Verify that the leads are working correctly and are properly connected. * Ensure that the volume and on/off switch on the external microphone or line source are correctly set. * Make sure that the VOLUME or MIC VOLUME control is not turned all the way down. * Confirm that "LINE IN" is displayed on the LCD for the AUX input by pressing the MP3/LINE button.
J
johnpadillaSep 12, 2025
Why Qtx Speaker System has power LED lit but no VHF output?
- J
  Jacob CooperSep 12, 2025
  If the power LED is lit, but there's no VHF output, check these items: * Ensure the 9V batteries in the wireless transmitters are working. * Verify the wireless transmitters are switched on. * Confirm that the VHF POWER is switched on. * Check that the MIC VOLUME isn't turned down. * Look for radio signal on the RF A and RF B LEDs.
D
David CaseSep 15, 2025
How to troubleshoot Qtx Speaker System with no output and no LEDs lit?
- J
  Jennifer JacksonSep 15, 2025
  If there is no output and no LEDs are lit, check the following: * Ensure the POWER switch is on. * Check that the battery is not fully drained. * Verify the mains lead is connected. * Make sure the mains or D.C. fuse hasn’t blown.

Qtx QR15PA Specifications

General

Type	Portable PA Speaker
Battery Life	Up to 8 hours
Bluetooth	Yes
Impedance	4 Ohms
Sensitivity	96dB
Input Connections	USB, SD card
Power Supply	internal battery
Speaker Size	15 inch
Woofer	15 inch

Summary

QRPA Portable PA Units Introduction

Product Features Overview

Details features like mains/DC power, rechargeable battery, wireless mics, media player, EQ, VCV, trolley, and pole mount.

Package Contents Checklist

Lists all items included in the box: PA unit, microphones, power lead, remote control, and user manual.

Safety, Placement, and Cleaning

General Warnings and Safety

Advises against exposure to rain/moisture, removing covers, and emphasizes qualified servicing.

Operational Safety Guidelines

Ensures correct voltage, avoids water ingress, handles fuses, and stores batteries properly.

Placement and Environmental Advice

Recommends placement away from direct sunlight, heat, moisture, and dust in an upright position.

Cleaning Instructions

Use a soft cloth with neutral detergent; avoid solvents to prevent damage.

Specifications Overview

Controls and Operation

Front Panel Controls Guide

Details controls for USB, SD, EQ, Volume, VCV, Mic Inputs, VHF Indicators, Mic Volumes, AUX, and Output.

Rear Panel Connections and Indicators

Covers External Power, Charging/Mains Indicators, Media Player Display/Controls, Echo, Input Volumes, Fuses, and IEC Inlet.

Initial Power Up Procedure

Steps for turning on the unit, setting initial controls, and checking power LEDs.

Wireless Microphone Setup

Battery Installation and Antennae

Instructions for inserting batteries into microphones and connecting antennae.

VHF System Activation

Guides on powering the VHF system, checking LEDs, and adjusting microphone volumes.

Feedback Prevention and Echo Control

Tips for avoiding feedback and adjusting echo, bass, and treble settings.

External Inputs and Media Player

Connecting External Microphones

Utilizing 6.3mm jack inputs for wired or wireless microphones governed by MIC VOLUME.

AUX Input and Output

Connecting line input sources via RCA and utilizing the main mix line output.

Internal USB/SD Player Operation

Loading media, selecting input, and using playback controls for USB/SD devices.

Remote Control and Battery Charging

Infra-Red Remote Functions

Details remote control functions for USB/SD player including power, transport, volume, and EQ.

Internal Battery Recharging

Procedure for charging the internal battery via mains supply when the unit is off.

Troubleshooting and Disposal

Common Output and LED Issues

Troubleshooting steps for no output, no LEDs, or no VHF output.

Media Player and Sound Issues

Resolving problems with USB/SD player output or music level cutting out.

External Input Sound Problems

Diagnosing issues with sound from external inputs or AUX.

Device Disposal Guidelines

Instructions for properly disposing of the unserviceable device according to statutory requirements.

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