Powered by Made-in-China.com

Ka28 Double 18 Inch Audio System Speaker Subwoofer
US$900.00-1,000.00
1 Piece
Product profile
Customization
AvailableNoise
<102dBHi-Fi
Hi-FiModel NO.
KA28Activity
PassiveOperation Mode
Wire / Remote ControlSpeaker System
Optional CombinationSpeaker Material
WoodApplication
Commercial, Home, Stage, KTV, Professional PerformanceCertification
CE, RoHSTHD
0.005%-0.01%Driver Lf
18"×2(Neodymium φ75mm)Frequency Response
60Hz-18kHzRated Power
800WPeak Power
1800WSystem Sensitivity
143 DbImpedance
8ωNet Weight
79kgWood Case
High Quality Brich Plywood, Surface CoatingSpecial Service
OEM Service OfferedTransport Package
Strong Wooden Frame and CartonSpecification
343× 379× 595Trademark
SinbosenOrigin
Guangdong Province, ChinaHS Code
85182200Production Capacity
1000 Units/ MonthCompany profile
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: ≤5.15h
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.
Send Inquiry
*To:
Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
Guangzhou Xinbaosheng Audio Equipment Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Ka28 Passive Stage Speaker Dual 18 Inch Subwoofer Audio System Sound
US$900.00-1,000.00
1 Piece(MOQ)
Ka28 Active Outdoor Stage Professional Audio Active Subwoofer Dual 18 Inch Speaker
US$800.00-1,000.00
1 Piece(MOQ)
Professional Audio Double 18 Inch Night Club Speaker System Subwoofer
US$100.00-1,000.00
2 Pieces(MOQ)
Ka28double 18 Inch Neodymium Professional Audio Subwoofer Speaker
US$900.00-1,000.00
1 Piece(MOQ)
Ka28 Neodymium Driver Dual 18 Inch Subwoofer Passive Speaker Professional Audio Speaker System
US$900.00-1,000.00
1 Piece(MOQ)
Tact Professional Audio La210 Double 10 Inch Line Array with Subwoofer System
US$388.00-418.00
8 Pieces(MOQ)
Domc Wooden Cabinet Subwoofer Speaker - Ks28 Dual 18-Inch Professional Audio System with 139db Max Spl
US$5,668.00-5,768.00
1 Piece(MOQ)
Professional 18 Inch Woofer Speaker Heavy DJ Subwoofer for Audio PA System
US$110.00-118.00
10 Pieces(MOQ)
Professional Audio Speaker Tact Subwoofer in Dual 18 Inch Sound Speaker
US$337.00-371.00
10 Pieces(MOQ)
Domc Ks28 Professional Dual 18-Inch Subwoofer Speaker - 25Hz-200Hz Deep Bass Audio System with 4000W Peak Power
US$5,668.00-5,768.00
1 Piece(MOQ)
T218c Double 18 Inch Indoor Super Bass Speaker Sub Woofer
US$100.00-1,500.00
2 Pieces(MOQ)
Double 18 Inch Subwoofer with Power up to 4400W, Passive Professional Audio Subwoofer Ts218
US$431.00-447.00
8 Pieces(MOQ)
High-End PRO Audio Factory 18 Inch Speakers Sound System Big Power 18'' Subwoofer Retailer
US$60.00-65.00
10 Pieces(MOQ)
18 Inch Active/Powered Line Array 800W Subwoofer Audio System for Nightclub/Club
US$510.00-529.00
2 Pieces(MOQ)
Professional Audio Sound System Subwoofer Single with 18-Inch Size
US$203.45
2 Pieces(MOQ)
Audio Speaker 18 Inch Plywood Passive Subwoofer System with Professional OEM Support
US$269.43
2 Pieces(MOQ)
B&C Speaker Bass Professional Speaker Single 18" Subwoofer Line Array System Audio System PA Vk18b20
US$400.00-700.00
1 Piece(MOQ)



















