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Df Series D Class Power Amplifier Low Internal Resistance Professional PA AMP
US$439.00
1 Piece
Sample price:US$439.00/piece.Request sample
Product profile
Customization
AvailableType
Professional AmplifierUsage
Bar / Theater / Tour ApplicationModel NO.
DFUsed For
ProfessionalTube Type
Transistor AmplifierFunction
Post AmplifierSound Channel
2-4Voltage
Wide VoltageElement Number
Push-Pull AmplifierConductive Mode
DTransport Package
BoxSpecification
483×500×89mmTrademark
RESONANCEOrigin
ChinaProduction Capacity
10000pieces/YearCompany profile

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: 11 years CertifiedNearest Port: Guangzhou port, Shenzhen portAverage Response Time: ≤4.01h
AI-Powered supplier vetting
SummaryThe supplier is identified as a combined company and a professional technical supplier offering 3D software design, OEM, ODM, and multiple customization options. It reports four production lines, SMT, a crest welder, an aging machine, standardized finished-product inspection instructions, and 11 years of export experience. Innovation evidence includes new products within the past year, but no SDK availability. Service infrastructure is limited: no overseas warehouse, showroom, agent or branch, offline trade-show participation, or overseas service coverage is reported. Service-management weaknesses include no written procedures or records for supplier assessment, corrective actions, or complaint handling, although quality assurance is reported. No factory environmental impact assessment report is available, and continuous batch quantity reconciliation is not performed. Certification and customer-case evidence are not provided.
Supplier typeThe supplier is classified as a combined company and explicitly identifies itself as a professional technical supplier. This indicates a mixed business structure with technical-service positioning, but the slices do not provide more specific legal or organizational detail.
After-Sales capabilityThe supplier reports no overseas warehouse, showroom, agent or branch, offline trade-show participation, or overseas service coverage. It also has no written procedures or records for complaint handling, supplier-service assessment, or corrective and preventive actions, indicating limited documented after-sales infrastructure.
R&D capabilityThe supplier provides 3D software design services, reports new products within the past year, and offers ODM services. However, it has no available SDK, so the evidence supports product and design development but not SDK-based innovation capability.
Production capacityManufacturing evidence includes four production lines, SMT, a crest welder, and an aging machine, as well as uniformly followed finished-product inspection instructions. However, the factory does not continuously reconcile quantities for every batch or mass-production run, indicating a documented production-control weakness.
Customization capabilityThe supplier explicitly supports customization from samples, minor customization, flexible customization, full customization, and customization from designs. It also provides 3D software design services, supporting a broad customization range.
Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of brand-serving experience. No specific customer names, project details, or case outcomes are supplied, so the depth of the customer-case record is limited.
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Resonance Audio Equipment Co., Ltd.
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