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Professional Sound Equipment Power Amplifier with DSP
US$1,000.00-2,000.00
1 Piece
Product profile
Customization
AvailableType
Professional AmplifierUsage
AV, KTV SystemModel NO.
DA20.4-DUsed For
ProfessionalFunction
Pre-amplifierConductive Mode
D8Ω Stereo Power
4×2000W4Ω Stereo Power
4×3400W2Ω Stereo Power
4×4760Wwith DSP
with Imported Germany DSP ModuleTransport Package
45X483X461mmSpecification
4 channelTrademark
RFOrigin
Guangzhou, ChinaHS Code
8518400090Production Capacity
2000PCS/MonthKey features
Built-in DSP Module: Features 96kHz sampling rate, 64-bit processor, and 10-band parametric filter.
Real-time Remote Control: LCD display and PC connectivity allow real-time system parameter adjustment.
1U Rack Design: Compact 45x483x461mm size ensures cost-effective shipping and installation.
Comprehensive Protection: Includes under-voltage, DC output, overheat, and overload protection circuits.
100 Preset Memories: Allows saving and calling 100 different preset configurations for quick setup.
Versatile Application: Ideal for conference rooms, KTV, theaters, stadiums, and multi-function halls.
Company profile

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.
Product Q&A
Q:Does this amplifier include a DSP module?
A:
Yes, it features a built-in imported German DSP module with 96kHz sampling rate, 64-bit processor, and 10-band parametric filter.
Q:Can I control the amplifier remotely?
A:
Yes, it supports real-time remote control via PC connection to adjust system parameters displayed on the front LCD.
Q:What protection features are included?
A:
It includes power supply under-voltage protection, DC output protection, overheat protection, temperature control, and overload control.
Q:What is the input sensitivity?
A:
The input sensitivity is optional and available in 41dB, 38dB, 35dB, or 32dB configurations.
Q:Is OEM/ODM service available?
A:
Yes, the manufacturer offers both OEM and ODM services for custom requirements.
Send Inquiry
*To:
Guangzhou Ruifeng Intelligence Technology Co., Ltd
Guangzhou Ruifeng Intelligence Technology Co., Ltd*Content:
Supplier replies will be sent to your registered email
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