Why is there no sound coming from my JBL Speaker System?
First, ensure the JBL Speaker System is properly connected to an active power source and that the circuit is on. Check that the illuminated logo is on. Try re-seating the power cable at both ends, and if possible, substitute with a power cable that you know is working. Also check if the speaker power cable is faulty or improperly connected.
What to do if my JBL Speaker System has no sound but the speaker comes on?
If your JBL Speaker System has power but no sound, check the VU meters on the source mixer. Ensure your CD/MP3 player is active. Use headphones to confirm the instrument is sending an audio signal. Disconnect and reconnect the signal cables, or try replacing the cable with one that is known to be working.
What to do if JBL speaker comes on but there is no sound?
If your JBL speaker comes on but produces no sound, there might be faulty cables and connections. Check the VU meters on the source mixer and verify that the CD/MP3 player is playing. Use headphones to confirm that the instrument is sending an audio signal. Disconnect and re-seat signal cables, and replace any suspected cables with known-good ones.
What to do if JBL speaker is connected to power but won’t come on?
If your JBL speaker is connected to working AC power but won’t turn on, a blown fuse could be the cause. Replace the fuse with the specified value and type. Alternatively, take your speaker to a competent service center.
What to do if JBL speaker is unresponsive?
If your JBL speaker is unresponsive, a system error may have occurred. Power cycle the speaker. You can also perform the Factory Soft Reset.
Why do my JBL PRX815XLFW feedback and howl when the microphone volume is turned up?
If your JBL speakers are feeding back and howling when the microphone volume is turned up, it could be due to several reasons. One common cause is that the microphones are pointed directly into the speakers; repositioning the speakers, so they don't directly face the microphone's pickup pattern can help. Incorrect equalizer settings can also cause feedback; try locating the feedback frequency and reduce it using the mixer EQ or an external equalizer. Finally, excessive gain can be a culprit; reduce the gain at the mixer and move the microphone closer to the sound source.
What to do if JBL speaker signal sounds distorted and very loud, LIMIT LED is lit most of the time?
If you're experiencing distorted and very loud sound from your JBL speakers, and the LIMIT LED is frequently lit, it indicates that the input signal is too high, exceeding what the speakers can handle. To resolve this, reduce the output level of the source and turn down the level controls on the speaker.
Why is there noise or hiss heard at JBL speaker output?
If you are hearing noise or hiss from your JBL speaker's output, it may be due to a noisy source device. Try disconnecting the devices connected to your speaker one at a time. If the noise disappears, the issue lies with the source or its connecting cable.
Why does JBL speaker signal sound distorted at moderate volumes, LIMIT LED is not lit?
If your JBL speaker signal sounds distorted even at moderate volumes, and the LIMIT LED is not lit, the mixer or another source might be overdriving or clipping. Review the Owner’s Manual for your system setup and adjust controls as needed. Check input sensitivity gain and the gain structure of the signal chain.
Why do JBL PRX815XLFW hum or buzz when the mixer level controls are moved?
If you're experiencing hum or buzz from your JBL speakers, and it increases or decreases when the mixer level controls are moved, it could be due to an improper A/C ground or faulty equipment connected to the mixer input. Disconnect or mute channels one at a time to isolate the problem. Also, a faulty cable between the source equipment and mixer may be the cause; substitute a known-good cable for the suspected faulty one.
General| LF Driver | 15" (380 mm) woofer |
|---|---|
| HF Driver | 1.5" (38 mm) neodymium compression driver |
| Amplifier Power Rating | 1500 W (LF: 1000 W, HF: 500 W) |
| Coverage Pattern | 90° x 50° |
| Transport | Integrated handles |
| AC Power Input | 100V - 240V ~ 50/60 Hz |
| Outputs | XLR (link out) |
Details on how to clean the speaker system and handle finish damage.
Warnings about moisture, sunlight, and potential movement of speakers.
Best practices for using stands and poles with speakers.
Critical safety guidelines for suspending speaker systems.
Advice for those new to rigging, including education and professional consultation.
Requirements for load-rated hardware and professional engineer approval for structures.
Procedures for regularly inspecting suspension systems and hardware for safety.
Contact information for rigging suppliers and JBL technical documentation.
Information on using built-in brackets and consulting qualified persons.
Specifies the working load limit for M10 suspension points on PRX800W.
Warning about potential hearing damage from high sound pressure levels.
Explains the 'CAUTION' symbol indicating dangerous voltage.
Explains the 'WARNING' symbol for rain or moisture exposure.
Lists standards for electromagnetic compatibility and product safety.
Details UL and CSA safety certifications for the audio apparatus.
Notice regarding FCC rules and potential radio frequency interference.
Guidelines for ensuring adequate AC power for optimal speaker performance.
Correct procedure for powering the speaker system on and off.
Information on the amplifier's thermal protection and cooling needs.
Introduction to the PRX800W series, highlighting its design, technology, and applications.
Explains closed system architecture and JBL's commitment to sustainability.
Comprehensive specifications for the full-range speaker models.
Comprehensive specifications for the subwoofer models.
Diagram and labels for the full-range model input panel.
Detailed explanation of all input panel components and their functions.
Diagram and labels for the subwoofer model input panel.
Detailed explanation of all subwoofer input panel components and their functions.
Step-by-step instructions for establishing a Wi-Fi connection for system control.
Instructions for restoring speakers to factory default settings.
Mailing, shipping, customer service, and web contact information for JBL.
Details on warranty coverage, exclusions, claims process, and user rights.
Recommendations and initial steps for setting up wireless connectivity.
Best practices for router setup, band selection, channel choice, and placement.
Step-by-step guide for connecting speakers to a Wi-Fi network for control.
Procedures for standalone speaker setup and modifying Wi-Fi settings.
Key features, use cases, and detailed technical specifications for the PRX815W.
Graphical data, system flow diagram, and physical dimensions of the PRX815W.
Summary of PRX815W highlights, including Wi-Fi control, power, and durability.
Illustrates typical applications and provides a summary of technical specifications.
Frequency response analysis, app screenshots, and technology explanation.
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