Powered by Made-in-China.com
Sinbosen 4 Channels 1u Digital Amplifier 450W 8 Ohms Home Mini Audio Amplifier
US$145.00-165.00
1 Piece
Product profile
Customization
AvailableType
Professional AmplifierUsage
Hi-Fi, AV, KTV System, StageModel NO.
K4-450Used For
ProfessionalTube Type
Transistor AmplifierFunction
Post Amplifier, Amplifier Combined, Pre-amplifierSound Channel
4.1Output Number
4Voltage
110V or 220VElement Number
MonoamplifierConductive Mode
DAmplifier Type
1u Digital AmplifierProduct Name
K4-450 Power AmplifierClass
Class D Power AmplifierChannel
4 Channel Power AmplifierOutput Power 8ω
450wx4CHFrequency Response
20 Hz - 20 kHzFeature
Perfect Sound/1u/4CH/Digital AMPApplication
Karaoke/Indoor/Stage/Concert/Party/KTV/Bars/ChurchCertificates
CE, RoHSWarranty
Three YearsService
OEM ODM Support ;After-Sale ServiceTransport Package
Strong PackingSpecification
1UTrademark
SinbosenOrigin
Guangdong Province, ChinaHS Code
8518400090Production Capacity
2000 Units/ MonthKey features
High Power Output: Delivers 450W per channel into 8 Ohms across 4 channels.
Compact 1U Design: Mini 1U size (55x32x11cm) ideal for touring and stage applications.
Class D Technology: Efficient Class D amplifier with <0.05% THD for superior sound quality.
Comprehensive Protection: Built-in protection against short circuit, overload, thermal issues, and DC.
Flexible Input Options: Features XLR and Speakon connectors for versatile connectivity.
Wide Voltage Range: Supports 90-265V AC input with PFC for global compatibility.
Long Warranty Period: Includes a three-year warranty covering quality issues with engineering support.
No MOQ Limit: Accepts orders from 1 piece up to 1,000,000 pieces with no minimum quantity restriction.
Company 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.
Product Q&A
Q:What is the output power of this amplifier?
A:
It provides 450W per channel into 8 Ohms across 4 channels.
Q:Does this amplifier support different voltage inputs?
A:
Yes, it supports a wide voltage range of 90-265V AC with PFC.
Q:What is the warranty period for this product?
A:
We provide a three-year warranty. If there are quality issues, engineers will provide support.
Q:Is there a minimum order quantity?
A:
No, there is no minimum order quantity limit; you can order from 1 piece to 1,000,000 pieces.
Q:What certifications does the product have?
A:
The product is certified with CE and RoHS.
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
DSP 2 Ohms Stable D4-3000 Professional 4 Channnels 6500W DSP 1u Digital Power Amplifier Audio Sound
US$900.00-1,000.00
1 Piece(MOQ)
5.1 Channel Hi-Fi Home Digital Audio Video Amplifier for Home Entertainment System
US$125.40-171.60
1 Piece(MOQ)
Class D Professional High Power Amplifier 3000W*4 Power AMP 1u Class D Sound Digital Power Amplifier
US$400.00-600.00
1 Piece(MOQ)
Elong 410 Powerful 8 Ohms 4 Channel Sound Amplifier: 4X1000W Output
US$300.00-500.00
1 Piece(MOQ)
Sinbosen 1u Digital Amplifier 450W 4 Channel PA Sound System Mini Amplifier
US$145.00-165.00
1 Piece(MOQ)
Da18K4 18000W 4 Channel 1u Class D Digital Professional Audio Speaker Stereo DSP Power Amplifier
US$100.00-760.00
1 Piece(MOQ)
Tuya Smart Home 8 Channel WiFi Bluetooth Audio Stereo Wall Amplifier with 7-Inch Screen Touch
US$149.00-204.00
1 Piece(MOQ)
D18K4 4 Channel Class D 1u Professional Audio Digital Power Amplifier for Livehouse
US$679.00-700.00
1 Piece(MOQ)
Four-Channel Digital Amplifier 4/8 Ohms 2600W Power Output
US$1,503.55-1,531.92
1 unit(MOQ)
Dt18K4 4 Channel 18000W 1u Class D Dante Professional Digital Audio Power Amplifier
US$100.00-1,050.00
1 Piece(MOQ)
Tianlai Tl-Jx600-6 Amplificador De Som 400 Watt Bluetooth Stereo Music Home 8 Channel Power Amplifier
US$78.00-80.00
1 pieces(MOQ)
Home Audio Digital Power Amplifier 2 Channel H Class PRO Audio Amplifier Modules
US$120.00-760.00
5 Pieces(MOQ)
High Quality 2 Channel 100W*2 Home Theater Stereo Digital Amplifier 2.0 Sound System for Speakers
US$55.00-71.00
100 Pieces(MOQ)
SD2506 6-Channel Home Theatre 1u 250W Power Amplifier
US$276.00-285.00
1 Piece(MOQ)
Da1008 8X130W Class-D 8 Channel Home Theater System 1u Power Amplifier
US$200.00-250.00
1 Piece(MOQ)
Professional 1u Design Stereo Digital Power Amplifiers Class D Subwoofer 2*500W 2 Channel Amplifier
US$198.00-257.00
1 Piece(MOQ)



















