What is the frequency response range?

The frequency response ranges from 30Hz to 250Hz.

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Dual 18 Inch Professional Stage Big Bass Subwoofer Speaker

Name: Dual 18 Inch Professional Stage Big Bass Subwoofer Speaker
Brand: Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
SKU: 2036039972

Guangdong, ChinaGuangzhou Xinbaosheng Audio Equipment Co., Ltd.

US$380.00-400.00

1 Piece

Product profile

Customization

Available

Noise

<102dB

Hi-Fi

Model NO.

S-218+

Activity

Passive

Operation Mode

Wire / Remote Control

Speaker System

Optional Combination

Speaker Material

Wood

Application

Commercial, Home, Stage, KTV, Professional Performance

Certification

CE, RoHS

THD

0.005%-0.01%

Type

2 Way Full Range Line Array Speaker

Driver Lf

1200W/6Ω 2700W/Peak

Frequency Response

30Hz-250Hz

Rated Power

800W

Peak Power

1800W

System Sensitivity

100dB

Impedance

8Ω

Net Weight

82.5kg

Wood Case

High Quality Brich Plywood, Surface Coating

Special Service

OEM Service Offered

Transport Package

Strong Wooden Frame and Carton

Specification

343× 379× 595

Trademark

Sinbosen

Origin

Guangdong Province, China

HS Code

85182200

Production Capacity

1000 Units/ Month

Key features

Dual 18-Inch High Power Bass: Features two 18-inch drivers with 1200W rated and 2700W peak power for deep, professional sound.

Wide Frequency Response: Delivers rich low-end frequencies from 30Hz to 250Hz with 0.005%-0.01% THD for Hi-Fi clarity.

Durable Wood Construction: Built with 18mm high-quality birch plywood and surface coating for robust protection.

Comprehensive Certifications: Meets international safety and environmental standards with CE and RoHS certifications.

Flexible Customization: Offers full customization, design-based, sample-based, and minor customization options.

Versatile Application: Ideal for commercial venues, home theaters, stages, KTV, and professional performances.

Fast Production Lead Time: Standard and peak season lead times are both within 15 working days for quick delivery.

100% Quality Inspection: Every finished product undergoes visual inspection to ensure high quality and reliability.

Company profile

High Repeat Buyers ChoiceYears of Export Experience

Guangzhou Xinbaosheng Audio Equipment Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤4.63h

AI-Powered supplier vetting

SummarySinbosen demonstrates broad customization and ODM capability, has introduced new products within the past year, and reports RoHS compliance. It offers small orders and customized samples, a stated three-year warranty, 18-hour service availability, and free after-sales support for quality or product problems. Production indicators include seven production lines, six to ten quality-control staff, inventory capability, and lead times within 15 working days in both peak and off-season periods. However, the supplier has no valid manufacturing-capacity contract with related subcontractors, no supplier management-system certification, no overseas warehouse, overseas branch or agent, showroom, or offline trade-show participation. Inspection and supplier-assessment procedures exist without records, and approved-supplier lists lack signatures or dates. Financial information is present only as year labels, so financial credibility cannot be verified. Customer-case evidence is limited: no Fortune 500 cooperation or...

Supplier typeThe supplier presents itself as a manufacturer with R&D, ODM, customization, inventory, and seven production lines. It exports mainly to Europe and North America, but has no overseas warehouse, branch, agent, showroom, or overseas-service country coverage.

CertificationsRoHS is explicitly identified as the supplier’s sustainable-development and product-compliance certification. However, supplier management-system certification is listed as NIL, so certification coverage is limited to the stated product-related standard.

After-Sales capabilityThe supplier states that it provides a three-year warranty, welcomes small orders and customized samples, offers 18-hour online service, and provides free after-sales support for quality or product problems. These are explicit service commitments, although no performance records are provided.

R&D capabilityThe supplier reports new products within the past year, ODM service, and broad design customization. It has two years of total R&D-engineer experience and no available SDK, indicating some product-development capability but limited evidence of advanced technical integration.

Production capacityProduction evidence includes seven production lines, six to ten quality-control staff, inventory capability, 30 qualified service-capability suppliers, and lead times within 15 working days in peak and off-season periods. A material control weakness is that no valid manufacturing-capacity contract exists with related subcontractors, while inspection and supplier-assessment procedures lack records.

Customization capabilityThe supplier explicitly supports customization from samples, full customization, customization from designs, minor customization, flexible customization, ODM services, and customized samples for small orders. This is direct evidence of broad customization flexibility.

Client casesThe supplier reports no OEM service for popular brands and no cooperation with Fortune 500 companies. No named customers, project examples, or verifiable case studies are provided, so customer-case strength cannot be established.