What is the input voltage range?

It supports a wide voltage range of 90V to 260V AC at 50-60Hz.

How long is the lead time?

The average lead time is within 15 workdays for both peak and off-peak seasons.

Is the amplifier suitable for mobile shows?

Yes, it is lightweight, compact, and designed to be very suitable for mobile shows, performances, and conferences.

D4-2000 Karaoke Professional Class D 4 Channel 2000 Watts Power Amplifier

Name: D4-2000 Karaoke Professional Class D 4 Channel 2000 Watts Power Amplifier
Brand: Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
SKU: 2089723875

Guangdong, ChinaGuangzhou Xinbaosheng Audio Equipment Co., Ltd.

US$694.00

1 Piece

Product profile

Customization

Available

Type

Professional Amplifier

Usage

Hi-Fi, AV, KTV System, Stage

Model NO.

D4-2000

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

D4-2000 Power Amplifier

Class

Class D Power Amplifier

Output Power 2Ω

4760wx4CH

Output Power 4Ω

3400wx4CH

Output Power 8Ω

2000wx4CH

Frequency Response

20 Hz - 20 kHz

Channel

4 Channel

Feature

2 Ohms Stable Digital Amplifier

Application

Commercial, Professional Performance

Certificates

CE, RoHS

Warranty

Three Years

Service

OEM ODM Support ;After-Sale Service

Transport Package

Strong Packing

Specification

Origin

Guangdong Province, China

HS Code

8518400090

Production Capacity

1000 Units/ Month

Key features

High Power Output: Delivers 4760W per channel at 2 Ohms, 3400W at 4 Ohms, and 2000W at 8 Ohms.

Class D Efficiency: 1U digital amplifier design offering high efficiency, low heat, and compact size.

Wide Voltage Range: Supports 90V to 260V AC input, suitable for global power standards.

Low Distortion: Features 0.01% THD+N and IMD-SMPTE for pristine audio quality.

Comprehensive Protection: Includes under voltage, DC, over temperature, overload limiter, and short protection.

OEM and ODM Support: Offers flexible customization options including samples, designs, and minor changes.

Three-Year Warranty: Covers three years with free accessories and engineer support for quality issues.

CE and RoHS Certified: Meets international safety and environmental standards for global compliance.

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: ≤4.50h

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 warranty period?

We provide a three-year warranty. If there are quality problems, please provide pictures or video for engineer assessment and after-sale support, including free accessories.

Q:What is the minimum order quantity?

There is no minimum order quantity limit. You can order as few as 1 piece or as many as 1,000,000 pieces.

Q:What are the output power specifications?

The amplifier delivers 4x2000W at 8 Ohms, 4x3400W at 4 Ohms, and 4x4760W at 2 Ohms.

Q:Does the product support customization?

Yes, we offer OEM and ODM services with options for full customization, customization from designs, samples, and minor customization.

Q:What certifications does the amplifier have?

The product is certified with CE and RoHS standards.