21 Inch Subwoofer-Enhanced Professional Speakers Af-21003A

• Customization: Available
• Noise: <102dB
• Hi-Fi: Hi-Fi
• Model NO.: AF-21003A
• Activity: Passive
• Operation Mode: Wire / Remote Control
• Speaker System: 2.0 Channel
• Application: Commercial
• Certification: CCC
• THD: <0.005%
• Hight: 230mm/9.05inch
• Specification: 21 Inch
• Trademark: AF
• Origin: Guangzhou China
• HS Code: 8518210000
• Production Capacity: 5000PC/Month

Product Description

 

Product Description

Specifications
Product Name	SD-21003A
Siz	21"
Rater Power	1800W
Peak  Power	3600W
Impedance	8 ohm
Sensitivity	98dB
Frequency Response	30hz-1khz
Voice Coil Diameter	152mm(6inch)
Magnet Size	330*170*25mm
Aluminium Basket

THIELE&SMALL PARAMETERS
Resonant frequency (Fs)	30HZ
Dc resistance (Re)	6.5 ohm
Mechanical factor (Qms)	5.430
Electrical factor (Qes)	0.645
Total factor (Qts)	0.576
BL factor (Bl)	21.069T.M
Effective Moving mass (Mms)	239.267g
Effective Cas air load (Vas)	527.218L
Effective piston area (Sd)	173.490cm²

Detailed Photos

 

FAQ

 

Q1: What is our warranty for speaker drivers?

 

For our speaker driver, we have one-year warranty.

 

Q2:How can i get a sample ?

 

If you need some samples to test,we can make as per your request .

 

You should pay for the transportation freight of samples and our samples cost,while the samples cost can be refundable after you place the order.Thanks.

 

Q3:How much the transportation freight of samples?

 

The freight depends on the weight and packing size and your area.

 

Q4:Is it OK to print my logo on the product?

 

Yes.Please inform us formally before our production and confirm the design firstly based on our sample.

 

Q5:Can you produce according to customers' design?

 

yes.we mainly do the OEM/ODM service.

 

Q6:What's the minimum order quantity(MOQ)?

 

MOQ is 50pcs-500pcs each model size.

 

Q7:How about the delivery time?

 

For sample: 10-15 days

 

For order: 30-45 days