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We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the freight.

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Yes, we have 100% test before delivery. We make sure our good quality.

Small Design 1u Digital Amplifier Professional Stage Audio Power Amplifier Da20.4

Name: Small Design 1u Digital Amplifier Professional Stage Audio Power Amplifier Da20.4
Brand: Guangzhou Ruifeng Intelligence Technology Co., Ltd
SKU: 851572415

Guangdong, ChinaGuangzhou Ruifeng Intelligence Technology Co., Ltd

US$1,550.00-2,000.00

1 Piece

Sample price:US$1550.00/piece.Request sample

Product profile

Customization

Available

Type

Professional Amplifier

Usage

AV, KTV System, Conference Hall,Stadium,Multi-Functional Hall

Model NO.

DA20.4

Used For

Professional

Tube Type

Class D

Function

Pre-amplifier

Sound Channel

4×2000W

Output Number

Voltage

90-260VAC

Element Number

Pfc

Conductive Mode

8Ω Stereo Power

4×2000W

4Ω Stereo Power

4×3400W

2Ω Stereo Power

4×4760W

16Ω Stereo Power

2×4000W

Frequency Response

20Hz~20kHz(±0.2dB)

Input Sensitivity

Optiona(41dB/38dB/35dB/32D)

Icrosstalk Reduction

≥90dB

Dimension(H×w×d)

45×483×461mm

Thd+N

0.1%

S/N Ratio

≥107.5dB

Power Supply

90~260VAC,50~60Hz

Weight

12kg

Transport Package

45X483X461mm

Specification

4 channel

Trademark

Origin

Guangzhou, China

HS Code

8518400090

Production Capacity

2000PCS/Month

Key features

Class D Efficiency: Features multi-loop control technology with efficiency exceeding 95%.

Comprehensive Protection: Includes under voltage, DC output, overheat, temperature, and overload protection.

Active PFC Technology: Utilizes active PFC and soft switching for stable performance in harsh environments.

Low Distortion Audio: Achieves THD+N less than 0.01% with S/N ratio of 112dB for clear sound.

Wide Voltage Range: Operates reliably on 90-260VAC, 50-60Hz power supply globally.

Professional Certification: Certified by CE, RoHS, SGS, and ISO standards for quality assurance.

OEM & ODM Support: Professional manufacturer offering custom design and manufacturing services.

Company profile

Guangzhou Ruifeng Intelligence Technology Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2018-03-29 CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤18h CertifiedTerms of Payment: T/T, Western Union

AI-Powered supplier vetting

SummaryGuangzhou Ruifeng Intelligence Technology Co., Ltd. is a China-based limited company established in 2015 and focused on professional audio products, including line array speakers, full-range speakers, monitors, subwoofers, amplifiers, and processors. The supplier reports an integrated R&D, manufacturing, distribution, design, and technical-consultation capability, with six production lines, 11 years of combined R&D engineer experience, and 21–30 quality-control staff. It reports a one-month peak- and off-peak lead time and production information of 20,000 line array speakers. OHSAS18001:2007 and other management-system certifications are stated, but the certification scope is not detailed. Evidence supports product development and manufacturing capability, while customer references, detailed after-sales procedures, customization examples, and broader financial credibility remain insufficiently documented.

Supplier typeThe supplier is a limited company based in Guangdong, China, operating as an integrated professional sound and lighting business. Its stated activities cover R&D, manufacturing, distribution, design services, technical consultation, and related technical services, with products spanning professional audio equipment.

CertificationsThe supplier states that it holds an OHSAS18001:2007 certificate and other certifications. This provides explicit evidence of at least one management-system certification, although no details are provided on the other certifications or current validity.

R&D capabilityThe supplier reports an R&D center, 11 years of combined R&D engineer experience, and an independent professional sound brand created in 2015. It also states that the subsidiary focuses on intelligent, high-end, professional-grade sound-product R&D, supporting a positive assessment of innovation capability.

Production capacityProduction evidence includes six production lines, two factories within the technology park, reported output of 20,000 line array speakers, and a stated one-month lead time in both peak and off-peak seasons. The supplier also reports a manufacturing plant area of 1,500 square meters, indicating established production capability, although capacity for products other than line array speakers is not specified.

Customization capabilityThe supplier explicitly offers design services and technical consultation and states that it delivers related technical services for professional-grade sound products. These statements support some solution-design capability, but no specific customized-product examples, engineering process, minimum order requirements, or customization scope are provided.