What are the payment terms?

Payment terms include LC, T/T, and small-amount payment options.

What is the warranty or quality guarantee?

The factory strictly enforces quality control and standards, ensuring stable quality, reliability, and consistency, backed by ISO 9001 certification.

High Quality Constant Voltage Amplifier Public Address System

Name: High Quality Constant Voltage Amplifier Public Address System
Brand: DONGGUAN FDB AUDIO MANUFACTURE CO .,LTD
SKU: 943545655

Guangdong, ChinaDONGGUAN FDB AUDIO MANUFACTURE CO .,LTD

US$1.00-3,000.00

1 Piece

Product profile

Customization

Available

Type

Professional Amplifier

Used for

Professional

Model NO.

CA660

Function

Pre-Amplifier

Usage

PRO Amplifier

Tube Type

PRO Amplifier

Input Impedance

Aux:10 Kohms Mic:600ohms

Input Voltage

Aux:1V Mic: 1.8mv

Line Output Impedance

Output Voltage

70V-100V

MP3 Format

FM Frequency

FM Antenna Spec

Power Input

AC200V 50-6-Hz

Package Size

500*450*100mm

Net Weight

19kg

Transport Package

Carton Box

Specification

480x450x100mm

Trademark

FDB

Origin

Dongguan, China

HS Code

8518900090

Production Capacity

5000PCS/Month

Key features

Integrated MP3 & FM Playback: CA4601 model features USB/SD card support for automatic MP3 playback and built-in FM radio reception.

Superior MIC Input Priority: Two-way MIC input is prioritized over all other input sources for clear voice projection.

Comprehensive Protection Circuit: Equipped with protection against overvoltage, overcurrent, short circuit, and midpoint drift.

Dual Output Options: Available in constant impedance and constant voltage output terminals to suit various speaker systems.

OEM/ODM Customization: Factory supports OEM and ODM services with 10 R&D engineers for custom product development.

ISO 9001 Certified Quality: Manufactured under strict ISO 9001:2008 quality management system with full quality control.

Wide Power Range: Models range from 460W to 1500W output power to meet different venue requirements.

Company profile

DONGGUAN FDB AUDIO MANUFACTURE CO .,LTD

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, Small-amount payment CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryThe supplier is a China-based professional audio manufacturer with operations in Dongguan, Guangdong, and reported establishment dates of 2006 and 2010 in different records. Its stated product scope includes professional transducers, speaker cabinets, amplifiers, processors, horns, and related accessories. Evidence indicates a 7,500 m² manufacturing plant, 98 employees, advanced production and testing equipment, 10 R&D engineers, and ISO9001:2015 and ISO14001:2015 certifications. The company reports cooperation with BOSE, Thoman, and Proel in developing models, as well as positive customer feedback regarding quality stability, reliability, and consistency. However, the records contain inconsistent legal/company names and entity classifications, and provide insufficient evidence regarding after-sales processes, financial credibility, and formal customization services.

Supplier typeThe records identify the supplier as a manufacturing-oriented company in the professional audio sector, with a Dongguan manufacturing address, a 7,500 m² plant, and products including transducers, cabinets, amplifiers, and processors. However, one record classifies the company as a trade company, while another identifies a limited manufacturing company, so the exact legal and operating classification is inconsistent.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certifications, and also describes a formally enforced quality management system. This provides direct evidence of certified quality and environmental management systems.

R&D capabilityThe supplier reports dedicated R&D activity, 10 R&D engineers, advanced technology and testing equipment, development cooperation with materials and accessories manufacturers, and joint model development with BOSE, Thoman, and Proel. These details directly support meaningful product-development capability.

Production capacityEvidence supports in-house manufacturing of professional audio products, including a 7,500 m² plant, 98 employees, advanced production equipment, testing apparatus, and a broad product range. The supplier also describes established quality-control processes, indicating a substantive production operation.

Client casesThe supplier explicitly states that it cooperated with BOSE, Thoman, and Proel on new-model development, and reports positive feedback from local and overseas customers regarding stable quality, reliability, and consistency. These are direct customer-related references, although the records do not provide project details, dates, or independently verified case documentation.

Product Q&A

Q:What are the main features of the CA4601 model?

The CA4601 is an integrated amplifier with USB and SD card support for automatic MP3 playback, FM radio, two-way MIC input, and one-way AUX input. It prioritizes MIC input over other sources.

Q:What protection features does the amplifier have?

The amplifier includes a perfect protection circuit against overvoltage, overcurrent, short circuit, and midpoint drift to ensure safe operation.

Q:Is OEM or ODM service available?

Yes, the factory offers both OEM and ODM services, supported by 10 R&D engineers for custom product development.

Q:What is the lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season periods.

Q:What certifications does the product have?

The products are certified with CE and RoHS standards, manufactured under an ISO 9001:2008 quality management system.