
Single 21â² â² Subwoofer
- Rated Power
- 800W RMS, 3200W Peak
- Sensitivity
- 100dB 1 Watt/1 Meter
- Woofer
- 1X21"(530mm)/4.5" Voice Coil Woofer
- Maximum Spl
- 129dB Continuous, 135dB Peak
- Net Weight
- 58kg/PC
- Certification
- CE, RoHS
Specifications
| Product name | Single 21â² â² Subwoofer |
|---|---|
| Category | Subwoofers |
| Model NO. | NX121B&NX121BA |
| Woofer | 1X21"(530mm)/4.5" Voice Coil Woofer |
| Rated Power | 800W RMS, 3200W Peak |
| Sensitivity | 100dB 1 Watt/1 Meter |
| Maximum Spl | 129dB Continuous, 135dB Peak |
| Net Weight | 58kg/PC |
| Transport Package | Cartoon/Flight Case |
| Specification | 860x692x685mm(NX121B); |
| Origin | Dongguan, China |
| HS Code | 8518210000 |
| Production Capacity | 5000PCS/Month |
| Customization | Available |
| Certification | CE, RoHS |
| Frequency Response(-3dB) | 35Hz-300Hz |
| Factory Introduction | FDB Audio Manufacture Co., Ltd is specialized in researching, developing and manufacturing in PRO audio products. The main products are professional transducers(HF driver & woofer), speaker cabinets and electronic products like amplifiers and processors. |
| Web | fdbaudiochina.en.made-in-china.com |
| Price | US$1.00-3,000.00 1 Piece (MOQ) |
| Supplier | DONGGUAN FDB AUDIO MANUFACTURE CO .,LTD |
| Data retrieved | 2026-10-23 |
Available options
| Rated Power |
|---|
Additional data
| FREQUENCY RESPONSE(-3dB) | 35Hz-300Hz |
|---|---|
| DRIVERS | 1Ã21"(530mm)/4.5"voice coil LF |
| RATED POWER | 800W RMS,3200W peak |
| SENSITIVITY | 100dB 1watt/1 meter |
| MAXIMUM SPL | 129dB continuous,135dB peak |
| IMPEDANCE | 4 ohms nominal |
| INPUT CONNECTORS | 2ÃSpeakon NL4 |
| PACKING SIZE | 860mmÃ692mmÃ685mm |
| NET WEIGHT | 58kg/pc |
| GROSS WEIGHT | 64kg/pc |
Product description
The supplier lists this product. The listed model is NX121B&NX121BA. The specifications below reflect the information publicly displayed on the listing. Model NO.: NX121B&NX121BA. Rated Power: 800W RMS, 3200W Peak. Sensitivity: 100dB 1 Watt/1 Meter. Frequency Response(-3dB): 35Hz-300Hz.
Specifications, options and prices reproduce the supplier's published listing. Please confirm critical parameters with us before ordering.
FAQ
What is the minimum order quantity for Single 21â² â² Subwoofer?
The listed minimum order quantity is 1 piece. Tell us your quantity in the inquiry form and we will confirm it with the manufacturer.
How much does Single 21â² â² Subwoofer cost?
The published price is US$1.00 – 3,000.00 per piece. Final pricing depends on quantity, options and destination.
Can it be customized with my logo, color or packaging?
Yes — the listing states that customization is available (Available). Describe your requirements in the inquiry.
Where do these specifications come from?
Specifications, options and prices reproduce the manufacturer's published listing on the date shown in the specification table. Please confirm critical parameters before ordering.
Send an inquiry
NX121B&NX121BA · US$1.00 – 3,000.00 · MOQ 1 Piece








