Guangdong, China
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Line Array, PRO Audio, Jbl Speaker manufacturer / supplier in China, offering Double 7200W Big Power Subwoofer Bass Speaker (SM221S) (B2 BASS Loudspeaker), Professional Audio Loudspeaker Mv20 PA Speaker PRO Audio Line Array Powerful Subwoofer, Audio Mixer PRO Audio High Quality 500W DSP Active Monitor Speaker and so on.

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Supplier Homepage Products Loudspeaker Subwoofer speaker Double 7200W Big Power Subwoofer Bass Speaker (SM221S) (B2 BASS Loudspeaker)

Double 7200W Big Power Subwoofer Bass Speaker (SM221S) (B2 BASS Loudspeaker)

Min. Order / Reference FOB Price
2 Pieces US $300-800/ Piece
Port: Huangpu, China
Production Capacity: 1000PCS / Month
Payment Terms: T/T, Western Union
Hi-Fi: Not Hi-Fi
Activity: Passive
Operation Mode: Wire / Remote Control
Speaker System: 2.0 Channel
Speaker Material: Wood
Application: Commercial, Stage, Project, Live Concert, Big Area

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Basic Info.

Model NO.
2*21" Subwoofer
Birch Plywood
Nominal Impedence
4 Ohm
Transport Package
Carton Box
HS Code
The SM Series by ACLON is an extended range of active and passive speaker systems with
 plywood cabinet offering the renowned 
ACLON sound and 
a high-level performance in a reliable and affordable package. 

suit for outdoor live concert
Title Specification 
System Type   Subwoofer 
Products Model:   SM 18S  SM 218S  SM221S  SM321S 
LF driver unit Inch(aluminium frame)
 Voice Coil Diameter
 1 x 18" (φ100mm)  2 x 18" (φ100mm)   2 x 21" (φ125mm)   3 x 21" (φ125mm)  
Magnet type size ferrite,φ220mm   ferrite ,φ220mm   ferrite ,φ280mm   ferrite ,φ280mm 
Rated Power(RMS) 700W  1500W  3600W  5200W 
Programe Power /Peak Power 1100W /2100W  3000W /4500W  6000W /9000W  9000W /13000W 
Sensitivity (SPL 1m-1W)Nominal 99 dB   100dB   100dB   100dB  
Nominal Peak SPL @ 1m RMS 129 to 135dB  132 to 139dB  132 to 139dB  132 to 139dB 
Frequency Response( ±3dB) 42Hz - 250Hz  41Hz - 250Hz  41Hz - 250Hz  41Hz - 250Hz 
Usable Range at-6dB 40Hz - 280 Hz  38Hz - 290Hz  38Hz - 290Hz  38Hz - 290Hz 
Recommended Amplifiers    800W  1300W  1500W  2200W 
Crossover Frequency point 120Hz  80-150Hz  80-150Hz  80-150Hz 
Nominal Impedance 8 Ohms  4 Ohms  4 Ohms  4 Ohms 
Harmonic distortion <=0.05% 
Input  output Connector terminals 2 *NL4MP  Speakon, ( Input Pin±1=±1 ,  Pin±2= ±2 Link&Out  ) 
Outlook  Colours Black or White for choosen 
Protective Grille Perforated steel grille 
Appearance  Textured Polyurethane painted finished 
Enclosure material Baltic Birch 15&18 mm Plywood finished 
Rigging -Flyings  Handle 2 integral to cabinet handle, subwoofer have 4 pocket handle 
              Fittings Installation 12x M8 threaded insert , standard spacing 
              Stand fittings Built in Stand Fitting, 35mm (1"3/8) mounting pole socket 
Dimension  W*H*D (mm) 570×830×695  570×1310×805  1060*780*590  1560*780*805 
Shipping Dimensions (mm) 650x910x775  650 x 1390x880  1120*840*650  1620*840*880 
Net Weight   (1pcs) 56kg  (123 lbs)  93 kg (204lbs)   106kg  136kg 
Shipping Weight (1pcs) 59 kg (129 lbs)  97 kg (213lbs)  112kg  142kg 

Double 7200W Big Power Subwoofer Bass Speaker (SM221S) (B2 BASS Loudspeaker)

Our advantages
1. Imported USA component, USA technology.

2. Fast production lead time;

3. High quality and competitive price;

4. Professional factory. Workers are working with rich experience and good workmanship.

5. Product sound and performance it can compare with international famous brand.

 1. Q: Are you a factory or trading company? 
   A:We are a factory, specialized in professional audio equipment.

 2. Q: Where is your factory located? How can I visit there? 
   A:Factory located in Haizhu Town , Guangzhou  City, Guangdong Province in China. Takes about 1 hour from airport to our factory.

 3. Q: How does your factory do regarding quality control? 
   A:Quality is priority. Each production process must be checked by QC team and QA before departure.

  4. Q: Can you accept customized orders? OEM or ODM orders?
   A: Yes, we can. Customized orders are always welcomed, as well as OEM and ODM.

 5. Q:Can you make customers' logo on products and customer design? 
   A:Yes, we can, and customer's design are welcome .

 6. Q:.Which country is your main export market?
   A: Our main export regions are USA, Canada, Guatemala, Mexico, Germany, UK, Sweden, Hungary, Vietnam, Indonesia, Malaysia, Kenya, Ghana etc

 7. Q:.What if I can't find the infos I'm looking for, or what if I want to speak to someone directly?
A: Send message now, feedback will be got promptly or latest within 12 hours.
C: Call us: +86 137 1007 3998


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