Does the product support customization?

Yes, we offer full customization, minor customization, and customization from samples or designs.

What are the power output specifications?

It delivers 4000W RMS at 4 Ohms, 2200W RMS at 8 Ohms, and up to 9000W in bridged mode.

How is the cooling system improved?

We upgraded the system by adding 8 fans on the rear panel to enhance heat dissipation.

Sinbosen DSP20000q 4 Channel Professional DSP Module Power Amplifier for Karaoke

Name: Sinbosen DSP20000q 4 Channel Professional DSP Module Power Amplifier for Karaoke
Brand: Guangzhou Xinbaosheng Audio Equipment Co., Ltd.
SKU: 753281022

Guangdong, ChinaGuangzhou Xinbaosheng Audio Equipment Co., Ltd.

US$530.00-910.00

1 Piece

Product profile

Customization

Available

Type

Professional Amplifier

Usage

Hi-Fi, AV, KTV System, Stage

Model NO.

DSP20000Q

Used For

Professional

Tube Type

Transistor Amplifier

Function

Post Amplifier, Amplifier Combined, Pre-amplifier

Sound Channel

4.1

Output Number

Voltage

220V&110V

Element Number

Push-Pull Amplifier

Conductive Mode

Product Type

Professional DSP Power Amplifer

Amplifier Type

Class Td

8 Ohm Stereo Power  (RMS)

2200W X 4CH

4 Ohm Stereo Power  (RMS)

4000W X 4CH

Frequency Response

20 Hz - 34 kHz

Color

Black

Feature

Touch Screen, Software Controls

Warranty

Three Years

OEM Service

Accepted

Certification

Ce, RoHS

Transport Package

Strong Carton Packing

Specification

580*180*560mm

Trademark

Sinbosen

Origin

Guangzhou, China

HS Code

8518400090

Production Capacity

1000 PCS/Month

Key features

High Power Output: 4000W RMS at 4 Ohms, 2200W RMS at 8 Ohms, 9000W Bridged at 4 Ohms.

Advanced DSP Control: 4-inch touch screen and PC software for precise sound effect adjustment.

Enhanced Cooling System: Upgraded with 8 rear fans for superior heat dissipation.

Superior Power Supply: Capacitor upgraded to 3600UF 200V for deeper, more powerful bass.

Comprehensive Protection: Includes ACL, IGM, AutoRamp, short circuit, and DC voltage protection.

Wide Frequency Response: Operates from 20 Hz to 34 kHz with less than 0.1% THD.

Flexible Voltage Input: Supports 110V and 220V with selectable operating ranges.

Professional Components: Uses original ONSEMI transistors and Neutrik connectors.

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: ≤4.71h

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.