What is the typical response time for technical support?

We provide a 2-4-48 hour response tier: initial response within 2 hours, remote diagnosis within 4 hours, and on-site or advanced support dispatch within 48 hours for critical issues.

What certifications do the products hold?

Products carry CE, FCC, RoHS, and CCC certifications, ensuring compliance with international standards for quality, safety, and environmental protection.

2×400W Class-Ab Professional PA Power Amplifier 2u for Live Sound

Name: 2×400W Class-Ab Professional PA Power Amplifier 2u for Live Sound
Brand: Shandong Lightning Cloud Technology Engineering Co., Ltd.
SKU: 2152051562

Shandong, ChinaShandong Lightning Cloud Technology Engineering Co., Ltd.

US$189.92-322.86

1 Piece

Sample price:US$322.86/piece.Request sample

Product profile

Customization

Available

Type

Professional Amplifier

Usage

KTV System, Professional Stage/Conference

Model NO.

PW-450

Used For

Professional

Tube Type

Mosfet

Function

Post Amplifier

Sound Channel

2.0 (Stereo)

Output Number

Speakon + Binding Posts

Voltage

AC 110V/220V

Element Number

Push-Pull Amplifier

Conductive Mode

Audio Inputs

Balanced XLR Inputs

Transport Package

Carton Packaging

Specification

482 × 476 × 89 mm

Origin

China

Key features

Dual Circuit Design: Class-AB for low distortion or Class-H for high efficiency to meet diverse power needs.

Intelligent Heat Dissipation: Dual variable-speed fans with front-to-back airflow to prevent overheating.

Comprehensive Protection: Protects against overheat, short circuit, and DC output with automatic adjustments.

Flexible Application Modes: Supports Stereo, Parallel, and Bridged modes with input sensitivity selection.

Customizable Power Supply: Standard AC220V with AC110V customizable option for global market compatibility.

Company profile

Importers and ExportersMulti-language PioneerIn-stock CapacityFast Delivery

Shandong Lightning Cloud Technology Engineering Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.51h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad business activities spanning electronic products, software and hardware, display devices, intelligent robots, new-energy equipment, security systems, and related technical services. It offers extensive customization, including sample-, design-, full-, minor-, and flexible customization, and launched new products during the past year. Quality assurance is reported, but finished-product inspection is random, only one quality inspector is reported, and raw-material traceability is unavailable. The supplier has in-stock capability but no overseas warehouse or showroom. It lacks 3D software design and SDK availability. Financial information supplied shows zero operating revenue, cost, gross profit, and operating profit for the stated periods; no monetary figures are reproduced here. Corrective-action and complaint-handling procedures exist but lack written records. No customer cases or certifications are explicitly provided.

Supplier typeThe supplier is explicitly described as a professional technical supplier and its business scope covers electronic components, software and hardware, display devices, intelligent robots, new-energy equipment, security systems, and technical services. This supports classification as a diversified technology and equipment supplier rather than a narrowly specialized manufacturer.

Financial creditThe supplied financial-capacity record reports zero operating revenue, operating cost, gross profit, and operating profit for the stated periods. These figures provide explicit evidence of very limited reported operating activity, although the slices do not explain the accounting context or independently verify the data.

R&D capabilityThe supplier is identified as having professional technical R&D capability and launched new products during the past year. It also offers broad product customization, but does not provide 3D software design or an available SDK; the company description additionally presents a strategic manufacturing partner with automated production facilities and complete production lines.

Production capacityThe company description states that its display-solutions partner has automated production facilities and complete production lines, and the supplier reports in-stock capability. Nevertheless, outsourcing procedures and manufacturing contracts have unknown status, so the slices support production-related capability but do not fully establish the supplier’s own manufacturing controls.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is repeated across the R&D and design-capability records and is direct evidence of broad customization capability.

Product Q&A

Q:What is the difference between Class-AB and Class-H models?

The first 2 models use Class-AB for excellent sound quality and low distortion, while the other 7 models use Class-H for high efficiency and low heat generation.

Q:What protection features does the amplifier have?

It is equipped with overheat, short circuit, and DC output protection, automatically adjusting power supply and reducing internal resistance when load impedance is too low.

Q:Can the power supply voltage be customized?

Yes, AC220V is the standard, but AC110V is customizable to suit global markets.

Q:What are the available working modes?

The amplifier supports three working modes: Stereo, Parallel, and Bridged, along with input sensitivity selection and ground channel cut-off switch.

Q:What is the warranty period for this product?

We offer a standard 1-year warranty on key hardware components.