ICOA PRO SUB 21 A - Uncategorized LD Systems - Free user manual and instructions
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| Product Type | Active Subwoofer |
| Brand | LD Systems |
| Model | ICOA PRO SUB 21 A |
| Driver Size | 21 inches |
| Amplifier Power (RMS) | 2000 W |
| Amplifier Power (Peak) | 4000 W |
| Frequency Response | 28 Hz - 150 Hz |
| Maximum SPL | 138 dB |
| Impedance | 4 ohms |
| Input Connections | XLR, RCA |
| Output Connections | XLR (loop through) |
| Controls | Volume, crossover frequency, phase switch, polarity |
| DSP | Yes, built-in |
| Protection | Overload, thermal, short circuit |
| Enclosure Type | Bass reflex |
| Dimensions (W x H x D) | 610 x 690 x 600 mm |
| Weight | 52 kg |
| Power Supply | AC 230 V / 50/60 Hz |
| Power Consumption | 1500 W |
| Applications | PA systems, clubs, live sound, events |
| Included Accessories | Power cord, user manual |
| Maintenance | Wipe with a dry cloth; avoid moisture |
| Safety | Class I equipment; ground connection required |
| Spare Parts and Repairability | Contact LD Systems authorized service centers |
Frequently Asked Questions - ICOA PRO SUB 21 A LD Systems
What is the recommended crossover setting for the ICOA PRO SUB 21 A?
The recommended crossover frequency is typically between 80 and 100 Hz, depending on your main speakers. Use the built-in crossover control to adjust.
How do I connect the subwoofer to a mixer?
Use a balanced XLR cable from the mixer's subwoofer output to the subwoofer's input. If using multiple subwoofers, chain them via the XLR loop-through output.
Can I use this subwoofer outdoors?
Yes, the ICOA PRO SUB 21 A can be used outdoors, but protect it from rain and extreme moisture. Ensure the power connection is weatherproof.
What is the maximum power handling of this subwoofer?
The built-in amplifier delivers 2000 W RMS and 4000 W peak, so the subwoofer can handle that power continuously.
Does the subwoofer have a limiter to prevent damage?
Yes, the built-in DSP includes a limiter to protect the driver from over-excursion and thermal damage.
What type of enclosure does this subwoofer use?
It uses a bass reflex enclosure with a front-firing port for efficient low-frequency reproduction.
How heavy is the ICOA PRO SUB 21 A?
The subwoofer weighs approximately 52 kg (115 lbs). Use proper lifting techniques or a dolly.
Can I mount this subwoofer on a pole?
This model does not have a pole mount socket. It is designed for floor placement only.
What is the warranty period for this product?
LD Systems typically offers a 2-year warranty. Check with your retailer for specific terms.
How do I clean the subwoofer?
Wipe the enclosure with a soft, dry cloth. Do not use solvents or water inside the controls or connections.
User questions about ICOA PRO SUB 21 A LD Systems
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USER MANUAL ICOA PRO SUB 21 A LD Systems
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Product information
Brand : LD Systems
Model : ICOA PRO SUB 21 A
Category : Uncategorized