LSR12P - Uncategorized JBL - Free user manual and instructions
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| Product Type | Powered Studio Subwoofer |
| Model | LSR12P |
| Brand | JBL |
| Dimensions (H x W x D) | 414 x 350 x 414 mm (16.3 x 13.8 x 16.3 in) |
| Weight | 28.6 kg (63 lbs) |
| Power Output (RMS) | 250 W |
| Frequency Response | 27 Hz - 150 Hz |
| Crossover Frequency | Variable, 80-120 Hz |
| Input Connectors | XLR, 1/4" TRS (balanced) |
| Output Connectors | XLR (pass-through) |
| Phase Switch | 0° / 180° |
| Driver | 12" (305 mm) cone woofer |
| Enclosure Type | Ported |
| Protection | Limiter, thermal protection |
| Power Supply | AC 100-240 V, 50/60 Hz |
| Power Consumption | 250 W (max) |
| Controls | Volume, crossover, phase, power switch |
| Indicators | Power on LED |
| Package Contents | Subwoofer, power cord, user manual |
| Maintenance | Clean with dry cloth; avoid liquids |
| Safety | Do not open; refer servicing to qualified personnel |
| Spare Parts / Repairability | Contact JBL customer support or authorized service centers |
Frequently Asked Questions - LSR12P JBL
How do I connect the LSR12P subwoofer to my studio monitors?
Use balanced XLR or TRS cables from your audio interface output to the subwoofer input, then from the subwoofer output to your monitors.
What is the recommended crossover frequency?
Typically set the crossover to 80 Hz for small monitors. Adjust based on your room acoustics and monitor capabilities.
Why is there no sound from the subwoofer?
Check the power cable, ensure the power switch is on, verify signal cables are connected, adjust volume and crossover settings, and try flipping the phase switch.
How do I set the phase switch correctly?
Play a test tone at the crossover frequency and listen at your listening position. Switch between 0° and 180° and choose the setting that produces the strongest, most articulate bass.
Can I use the LSR12P in a home theater system?
Yes, the LSR12P has balanced XLR and 1/4" TRS inputs, which can be adapted for consumer home theater receivers if they have preamp outputs.
What maintenance does the LSR12P require?
Keep the enclosure free of dust. Clean the exterior with a dry cloth. Do not use liquids or solvents. Ensure ventilation slots are not blocked.
The power LED is not lighting up. What should I do?
First, verify the power cable is securely connected and the outlet is live. Check the power switch at the back. If still off, the internal fuse may need replacement; contact JBL support.
How loud can the LSR12P subwoofer get?
The subwoofer can achieve a peak SPL of up to 115 dB at 1 meter, depending on the input signal and room conditions.
What is the warranty period for the LSR12P?
JBL typically offers a 2-year limited warranty for this product. Check your purchase documentation or contact JBL for precise terms.
Can I daisy-chain multiple LSR12P subwoofers?
Yes, use the XLR output on the first subwoofer to connect to the input of a second subwoofer. You can chain multiple units while maintaining signal integrity.
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