What are the dimensions and weight of the amplifier?

The size is 483x429x44mm (1U design) and the net weight is 105Kg.

What protection features are included?

It includes protection against short circuit, open circuit, thermal overload, DC output, and super audio protection.

Professional DJ Amplifier K4-1400 1u Digital Power Amplifier 4 Channels Class D Amplifier

Name: Professional DJ Amplifier K4-1400 1u Digital Power Amplifier 4 Channels Class D Amplifier
Brand: Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
SKU: 799957912

Guangdong, ChinaGuangzhou Xinbaosheng Audio Equipment Co., Ltd.

US$400.00-600.00

1 Piece

Product profile

Customization

Available

Type

Professional Amplifier

Usage

Hi-Fi, AV, KTV System, Stage

Model NO.

K4-1400

Used For

Professional

Tube Type

Transistor Amplifier

Function

Post Amplifier, Amplifier Combined, Pre-amplifier

Sound Channel

4.1

Output Number

Voltage

110V or 220V

Element Number

Monoamplifier

Conductive Mode

Amplifier Type

1u Digital Amplifier

Product Name

K4-1400 Power Amplifier

Class

Class D Power Amplifier

Channel

4 Channel

Output Power 4Ω

2200wx4CH

Output Power 8Ω

1400wx4CH

Frequency Response

20 Hz - 20 kHz

Application

Commercial, Professional Performance

Certificates

CE, RoHS

Warranty

Three Years

Service

OEM ODM Support ;After-Sale Service

Transport Package

Strong Packing

Specification

Trademark

Sinbosen

Origin

Guangdong Province, China

HS Code

8518400090

Production Capacity

2000 Units/ Month

Key features

Class D Efficiency: Uses Class D module with R-SMPS for high efficiency and power density.

Compact 1U Design: Lightweight 1U size (483x429x44mm) suitable for easy installation.

Global Voltage Support: Wide voltage operation 90-265V~50Hz with PFC for global use.

Comprehensive Protection: Protects against short circuit, thermal, overload, DC, and open circuit.

Three Years Warranty: Covers quality problems with engineer support and after-sale service.

OEM/ODM Support: Flexible customization options including samples, designs, and minor changes.

Professional Audio Quality: SNR >106dB, THD <0.05%, and strong bass with clear mid/high frequencies.

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: ≤4.94h

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.