What is the minimum order quantity?

The minimum order quantity is 50 units.

What payment terms do you accept?

We accept T/T, LC, PayPal, and small-amount payment.

Do you offer OEM and ODM services?

Yes, we offer OEM and ODM services with customization options from samples, designs, and full customization.

21-Inch Neodymium Subwoofer 5000 Watts PRO Audio

Name: 21-Inch Neodymium Subwoofer 5000 Watts PRO Audio
Brand: Dongguan Weijiasheng Technology Co., Ltd.
SKU: 2117349352

Guangdong, ChinaDongguan Weijiasheng Technology Co., Ltd.

US$306.00

30-99 Pieces

US$292.00

100-199 Pieces

US$278.00

200+ Pieces

Product specifications

Cone Material

Suspension Material

Sample price:US$229.00/piece.Request sample

Product profile

Customization

Available

Noise

96dB

Hi-Fi

Model NO.

21SW152-8NW

Activity

Compatible

Operation Mode

Compatible

Speaker System

Compatible

Speaker Material

Compatible

Application

Professional Audio

Certification

CE, RoHS

Monitor

Compatible

THD

<0.005%

AES Power Handling

3000W

Voice Coil Diameter

153mm

F0

30Hz

Xmax

15mm

Transport Package

Carton

Specification

Neodymium, NW 18kg

Trademark

Origin

China

HS Code

85182900

Production Capacity

36000pieces/Year

Key features

High Power Handling: AES Power Handling 2500W and Maximum Power Handling 5000W for professional audio applications.

Neodymium Magnet: Features a lightweight Neodymium magnet with 1.15T flux density for high efficiency.

Low Distortion: Total Harmonic Distortion (THD) is less than 0.005% for pure sound quality.

Wide Frequency Range: Delivers deep bass with a frequency range of 30Hz to 1kHz.

Customization Available: Offers full customization from samples and designs with OEM/ODM services.

ISO Certified Quality: Manufactured under ISO 9001:2015 with 100% online inspection for zero defects.

Fast Production: Production cycle is 7 days for stocked models and 30 days for custom preparations.

2-Year Warranty: Comprehensive 2-year warranty covering replacements for any defects after delivery.

Company profile

Patents AwardedIn-stock CapacityCustomization from SamplesQuality Assurance

Dongguan Weijiasheng Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤5.89h

AI-Powered supplier vetting

SummaryThe supplier demonstrates established service, quality, customization, and digital-management processes. It reports inventory capacity, participation in an offline trade show, written procedures for supplier assessment, corrective actions, complaint handling, and quality assurance. Product development capabilities include 3D design, full customization, ODM, recent new-product development, and OEM service for popular brands. However, it has no valid manufacturing-capacity contract with its related subcontractor, no overseas warehouse, showroom, agent, or branch, and no overseas service-country coverage. It also lacks an environmental impact assessment report and an available SDK. Financial evidence is inconsistent and cannot support a reliable credibility judgment; monetary figures are omitted.

Supplier typeThe supplier appears to be a product manufacturer/service provider offering OEM, ODM, 3D design, inventory service, and customization from samples or designs. It operates without overseas warehouses, showrooms, agents, branches, or listed overseas service-country coverage, while accepting FOB and EXW quotation terms.

CertificationsThe supplier reports ISO9001:2015 certification and quality assurance, supported by documented corrective/preventive-action and complaint-handling procedures. However, it lacks a factory environmental impact assessment report, so certification evidence is positive but not comprehensive across sustainability requirements.

After-Sales capabilityDocumented customer-complaint procedures, corrective and preventive action procedures, and quality-control assurance indicate a formal service-support framework. Inventory capability and defined payment and quotation terms also support service execution, but the absence of overseas warehouses, showrooms, agents, and branches limits localized overseas support.

R&D capabilityThe supplier reports new-product development during the past year, 3D software design, ODM capability, and customization from samples, designs, and full specifications. The absence of an available SDK is a limitation for software or platform integration, but it does not negate the documented product-development capability.

Production capacityProduction-related evidence includes inventory capacity, a stated one-month peak-season lead time and off-season lead time within 15 working days, full-process quality control with 100% online inspection, customer-specific labeling and packaging, and precision equipment. A material weakness is that the factory and related subcontractor do not have a valid manufacturing-capacity contract.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, and full customization, along with 3D software design services. It also states that labeling and packaging can follow customer specifications, indicating broad product and order customization support.

Client casesThe supplier reports participation in the Guangzhou Prolight&Sound Show and OEM service for popular brands. These are direct indications of market-facing activity and brand-related production experience, but no specific customer names, project details, or verifiable case outcomes are provided.

Product Q&A

Q:Where is your company located?

The factory is located in Dongguan city, known as the World Factory, at the heart of the Pearl River Delta. It is just one hour away from Shenzhen or Guangzhou.

Q:Are you a manufacturer or trading company?

We are a manufacturer. We focus on the development and production of Pro Audio woofers, high/middle-frequency compression drivers and coaxials ONLY.

Q:What is your lead time?

For models that utilize stocked materials, the production cycle is 7 days. For products requiring material preparation, the standard production lead time is 30 days.

Q:How long is your warranty?

Our warranty is 2 years since the order delivered. During the warranty time, if anything has problems, we will replace it.

Q:What are your advantages?

Compared to other PA speaker manufacturers in China, our advantages lie in our exceptional custom R&D capabilities for loudspeakers and rigorous quality control on the production line.