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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.

Power Amplifier 4 Channel with DSP Class D Audio Amplifier Line Array Subwoofer Amplifier Da6.4-D

Name: Power Amplifier 4 Channel with DSP Class D Audio Amplifier Line Array Subwoofer Amplifier Da6.4-D
Brand: Guangzhou Ruifeng Intelligence Technology Co., Ltd
SKU: 851622895

Guangdong, ChinaGuangzhou Ruifeng Intelligence Technology Co., Ltd

US$1,000.00-2,000.00

1 Piece

Sample price:US$1250.00/piece.Request sample

Product profile

Customization

Available

Type

Professional Amplifier

Usage

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

Model NO.

DA6.4-D

Used For

Professional

Tube Type

Class D

Function

Pre-amplifier

Sound Channel

4×650W

Output Number

Voltage

90-260VAC

Element Number

Pfc

Conductive Mode

8Ω Stereo Power

4×650W

4Ω Stereo Power

4×1100W

2Ω Stereo Power

4×1870W

with DSP

with Imported Germany DSP Module

RMS Output Voltage

72.1V

S/N Ratio

≥107.5dB

Input Sensitivity

Optional (38dB/35dB/32dB/29dB)

Frequency Response

20Hz~20kHz(±1dB)

Thd+N

0.05%

Crosstalk Reduction

≥90dB

Dampering Factor

≥5000

Power Supply

90~260VAC,50~60Hz

Dimension(H×w×d)

45×483×372mm

Weight

12kg

Transport Package

45X483X461mm

Specification

4 channel

Trademark

Origin

Guangzhou, China

HS Code

8518400090

Production Capacity

2000PCS/Month

Key features

Built-in DSP Module: Features 2 in 4 out DSP with 96kHz sampling rate and 10-band parametric filter.

Low Distortion: THD+N is less than 0.01% ensuring high fidelity audio reproduction.

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

Remote Control Capability: LCD display allows real-time parametric control via PC connection.

1U Compact Design: Space-saving 1U form factor for cost-effective shipping and installation.

Wide Voltage Support: Operates on 90-260VAC 50-60Hz for global compatibility.

OEM & ODM Services: Professional manufacturer accepting custom designs and branding.

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.