What is the net weight of the speaker?

The net weight is 62 kg for the passive version and 66 kg for the powered version.

What payment terms do you accept?

We accept T/T, PayPal, and Western Union as payment terms.

Professional Single 21 Inch High Powered Active / Passive Subwoofer Speaker

Name: Professional Single 21 Inch High Powered Active / Passive Subwoofer Speaker
Brand: Sanway Audio Equipment Co., Ltd.
SKU: 827183995

Guangdong, ChinaSanway Audio Equipment Co., Ltd.

US$300.00-800.00

1 Piece

Product profile

Customization

Available

Noise

<102dB

Hi-Fi

Model NO.

MT21A

Activity

Passive

Operation Mode

Wire / Remote Control

Speaker System

Optional Combination

Speaker Material

Wood

Application

Commercial

Certification

CE, RoHS, CCC, FCC

Monitor

VFD Screen

THD

<0.005%

RMS

1200 Watts

Enclosure Material

18mm High Quality Plywood

Transport Package

Durable Cartons or Flight Case

Specification

Trademark

Sanway S8028

Origin

Made in China

HS Code

8518220000

Production Capacity

600PCS/Month

Key features

21-inch Neodymium Woofer: Features a 21-inch neodymium driver with 126mm voice coil for high-resilience bass.

1200 Watts RMS Power: Rated power of 1200 watts ensures high output for commercial and large venue applications.

Built-in DSP Amplifier: Powered version includes custom module with Mute, EQ, Delay, and Limiter functions.

18mm Birch Wood Cabinet: Constructed from lightweight, high-quality 18mm birch plywood for durability.

Vented Enclosure Design: Optimized port design tunes the system for extremely low frequency output.

Wide Frequency Response: Delivers deep bass with a frequency response range of 24 Hz to 90 Hz.

OEM and ODM Services: Manufacturer offers both OEM and ODM customization services for clients.

Multiple Certification: Product certified with CE, RoHS, CCC, and FCC standards for global compliance.

Company profile

Sanway Audio Equipment Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2006-07-15 CertifiedNearest Port: Zhaoqing Port, Guangzhou port, Shenzhen PortAverage Response Time: ≤8.78h CertifiedTerms of Payment: T/T, PayPal, Western Union

AI-Powered supplier vetting

SummarySanway Audio Equipment Co., Ltd. is identified as a combined limited company and factory-based professional audio manufacturer in Guangzhou, China. Its stated product range covers power amplifiers, speakers, line-array systems, processors, and related professional audio equipment. The supplier reports five production lines, 11–20 quality-control staff, four R&D engineers, and stated annual capacities of 3,000 power amplifiers and 10,000 line-array sets. It describes quality-control procedures, trained personnel, experienced engineers, and product innovation, but no management-system certification is reported. Export activity is indicated through a 51%–70% export-sales share and markets in South America and Europe. Trade records show one buyer in Kazakhstan, although the records do not establish broader customer performance. Lead time is stated as within 15 working days in both peak and off-peak periods. Evidence is insufficient to verify financial strength, after-sales arrangements, or customization...

Supplier typeThe supplier is described as a factory specializing in research, development, manufacturing, sales, and technical services. Its registered entity is a combined limited company based in Guangzhou, China, supporting classification as a manufacturer with integrated commercial and technical functions.

CertificationsThe supplier’s certification of management systems is explicitly listed as NIL. Therefore, no management-system certification is evidenced in the provided information.

R&D capabilityThe supplier states that it conducts research and development, emphasizes quality and innovation, and employs engineers and technicians with extensive professional-audio experience. Four R&D engineers are reported, and the product range includes DSP-equipped amplifiers and digital speaker processors, providing evidence of relevant product-development capability.

Production capacityThe supplier reports factory manufacturing, a modern assembly line, strict quality control, five production lines, 11–20 quality-control staff, and annual capacities of 3,000 power amplifiers and 10,000 line-array sets. It also states a lead time within 15 working days in both peak and off-peak seasons, supporting a demonstrated production capability.