What payment terms are accepted?

We accept LC, T/T, D/P, and PayPal as terms of payment.

What is the maximum SPL of the KA-15 speaker?

The KA-15 line array speaker has a maximum SPL of 141 dB (W) and 144 dB (F).

What material is used for the cabinet?

The cabinet is made from first-grade Russian birch plywood for high durability and acoustic performance.

15-Inch Line Array and 21-Inch Subwoofer Sound Equipment Amplifiers Speaker

Name: 15-Inch Line Array and 21-Inch Subwoofer Sound Equipment Amplifiers Speaker
Brand: Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
SKU: 2127489182

Guangdong, ChinaGuangzhou Xinbaosheng Audio Equipment Co., Ltd.

US$500.00-1,500.00

1 Piece

Product profile

Customization

Available

Activity

Passive

Operation Mode

Wire / Remote Control

Model NO.

KA15+KA21

Speaker System

Optional Combination

Speaker Material

Wood

Application

Commercial, Home

Certification

CE, RoHS

Max Spl

147dB

Frequency Response(-3dB)

35Hz-20kHz

Cabinet

First Grade Russian Birch Plywood

Speaker

Neodymium Magnet

Transport Package

Strong Wooden Frame and Carton

Specification

134x44x52cm (WxHxD)

Trademark

Sinbosen

Origin

Guangdong Province, China

HS Code

85182200

Production Capacity

1000 Units/ Month

Key features

Customization Options: Full customization, minor customization, and flexible customization from samples or designs available.

No MOQ Limit: Minimum order quantity is just 1 set; no limit on order size from 1pc to large batches.

3-Year Warranty: Comprehensive 3-year warranty for power amplifiers with professional after-sale support.

Premium Materials: Cabinets made from first-grade Russian birch plywood for durability and acoustic neutrality.

High Power Output: 21-inch subwoofer delivers 1800W AES and 3600W Peak power for powerful bass effects.

Professional Design: Engineers with 10+ years experience ensure precise audio engineering and acoustic design.

CE & RoHS Certified: Products meet strict CE and RoHS certification standards for safety and quality.

Versatile Application: Suitable for medium to large venues, commercial spaces, and home use with balanced coverage.

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: ≤4.90h

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.