What are the main application scenarios?

Ideal for KTV, bars, fixed installations, and medium-sized stage projects.

H4-1800 Professional 4CH Amplifier 3u Steel Chassis for Long Time Heavy Work

Name: H4-1800 Professional 4CH Amplifier 3u Steel Chassis for Long Time Heavy Work
Brand: Resonance Audio Equipment Co., Ltd.
SKU: 2181191902

Guangdong, ChinaResonance Audio Equipment Co., Ltd.

US$534.00

1 Piece

Sample price:US$534.00/piece.Request sample

Product profile

Customization

Available

Type

Professional Amplifier

Usage

AV, Bar, Stage, Fixed Installation

Model NO.

Used For

Professional

Tube Type

Transistor Amplifier

Function

Post Amplifier

Sound Channel

Output Number

Voltage

Wide Voltage

Conductive Mode

Class H

Transport Package

Carton Box with Foam Inside

Specification

483x580x132mm

Trademark

RESONANCE

Origin

China

Production Capacity

50000pieces/Year

Key features

Class TD Technology: Uses Class TD design with high efficiency SMT production and big current transformers.

Intelligent Cooling: Features variable speed cooling fan and intelligent temperature control.

Comprehensive Protection: Includes overheat, DC, short circuit protection, and intelligent clipping limiter.

Durable Construction: 3U standard box with high strength steel structure and symmetrical weight balance.

Low Distortion: Equipped with low THD and high damping factor for high quality audio.

Soft Start Function: Reduces inrush current at startup to avoid affecting the power supply.

Custom Voltage Support: Supports custom working voltage to meet specific regional requirements.

Company profile

Resonance Audio Equipment Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Guangzhou port, Shenzhen portAverage Response Time: ≤2.79h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a professional technical supplier offering 3D software design, OEM, ODM, and multiple customization options. It reports four production lines, SMT, a crest welder, an aging machine, standardized finished-product inspection instructions, and 11 years of export experience. Innovation evidence includes new products within the past year, but no SDK availability. Service infrastructure is limited: no overseas warehouse, showroom, agent or branch, offline trade-show participation, or overseas service coverage is reported. Service-management weaknesses include no written procedures or records for supplier assessment, corrective actions, or complaint handling, although quality assurance is reported. No factory environmental impact assessment report is available, and continuous batch quantity reconciliation is not performed. Certification and customer-case evidence are not provided.

Supplier typeThe supplier is classified as a combined company and explicitly identifies itself as a professional technical supplier. This indicates a mixed business structure with technical-service positioning, but the slices do not provide more specific legal or organizational detail.

After-Sales capabilityThe supplier reports no overseas warehouse, showroom, agent or branch, offline trade-show participation, or overseas service coverage. It also has no written procedures or records for complaint handling, supplier-service assessment, or corrective and preventive actions, indicating limited documented after-sales infrastructure.

R&D capabilityThe supplier provides 3D software design services, reports new products within the past year, and offers ODM services. However, it has no available SDK, so the evidence supports product and design development but not SDK-based innovation capability.

Production capacityManufacturing evidence includes four production lines, SMT, a crest welder, and an aging machine, as well as uniformly followed finished-product inspection instructions. However, the factory does not continuously reconcile quantities for every batch or mass-production run, indicating a documented production-control weakness.

Customization capabilityThe supplier explicitly supports customization from samples, minor customization, flexible customization, full customization, and customization from designs. It also provides 3D software design services, supporting a broad customization range.

Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of brand-serving experience. No specific customer names, project details, or case outcomes are supplied, so the depth of the customer-case record is limited.