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 speakers 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 PRX815W 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.
Why do my JBL PRX815W hum or buzz?
If you're experiencing hum or buzz with your JBL speakers, it may be due to improper A/C grounding or ground loops. Try telescoping the audio ground by using an XLR/F to XLR/M adapter on one end, and re-route audio cables away from AC power and lighting cables. If you are using excessively long unbalanced cable runs, use the balanced outputs of your mixer or source equipment to drive your speakers or use a 'DI' direct injection box to convert your unbalanced equipment output to a balanced output. Also, check for improper system gain structure and review the Owner’s Manual for your system setup and adjust controls as needed, checking input sensitivity gain.
Why is there no sound with microphone connected directly to the MIC input on JBL PRX815W Speakers?
If you're getting no sound when connecting a microphone directly to the MIC input of your JBL PRX800W speakers, it might be because the microphone requires 48V phantom power, which these speakers do not supply. Switch to a dynamic microphone, use a battery in the microphone if possible, or use an external phantom power supply.
Warning about potential hearing damage from prolonged exposure to high sound pressure levels (SPL).
Symbol indicating risk of electric shock from uninsulated dangerous voltage within the enclosure.
Symbol indicating risk of fire or electric shock if exposed to rain or moisture.
Information about controlling the system wirelessly via the PRX Connect application.
Diagram illustrating the input configuration of the amplifier for full-range models.
Description of Wi-Fi LINK LED and CONNECT button for wireless setup and control.
Diagram illustrating the input configuration of the amplifier for subwoofer models.
Step-by-step guide for connecting PRX800W speakers to a Wi-Fi network using the PRX Connect app.
Procedure to reset all DSP and network settings to factory defaults.
Procedure to reset only DSP settings to factory defaults, leaving network settings intact.
Solutions for no sound, distortion, noise, hum, or buzz in audio output.
Solutions for hum, buzz, feedback, howling, and excessive low frequencies.
Troubleshooting steps for speakers not powering on or signal-related issues.
Troubleshooting steps for an unresponsive speaker, including resets.
Step-by-step guide for connecting speakers to Wi-Fi using router information.
General| Product color | Black |
|---|---|
| LED indicators | Yes |
| Recommended usage | - |
| Speaker type | 2-way |
| Driver diameter | 375 mm |
| Speaker position | Front |
| Number of drivers | 2 |
| Audio output channels | 1.0 channels |
| Driver diaphragm material | Polymer fiber |
| Woofer diameter (imperial) | 15 \ |
| Impedance | 20000 Ω |
| Frequency range | 43.6 - 19300 Hz |
| RMS rated power | 1500 W |
| Crossover frequency | 2000 Hz |
| Amplifier class | D |
| AC input voltage | 100 - 240 V |
| Power source type | AC |
| AC input frequency | 50 - 60 Hz |
| Package weight | 26300 g |
| Audio RCA inputs | 1 |
| Connectivity technology | Wired & Wireless |
Weight and Dimensions| Depth | 359 mm |
|---|---|
| Width | 446 mm |
| Height | 701 mm |
| Weight | 20860 g |
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