12inch Professional speaker for Acoustic with copper coil,Subwoofer
Subwoofer/Loudspeaker/Amplifier/Powerful speaker/Speaker/Line array/Professional speaker
Guangzhou Shengguang Electronic Co.,Ltd is modernized enterprise with R&D , manufacture , sales and service . We focus on professional speakers, in the past ten years,Guangzhou Shengguang Electronic Co.,Ltd provide high quality professional speakers to customers over the word ,and got recognitions for the excellent performance ,consistent high quality and perfect speakers.DERWEL is our unique brand
Welcome to visit our factory to do sound debugging with our engineer ,we have rigorously tested all products sold,our factory is nearby the Baiyun airport .
The website contains just part of product , if you want to know more please contact April +8613719097884GENERAL SPECIFICATIONS
|Nominal Diameter ||12||Inch|
|Power Handling Capacity ||600|| Watts|
|Sensitivity 1W 1M||96.9||dB|
|Effective Piston Diameter||260||mm|
|Voice Coil Diameter ||75.5 mm||3 Inch|THIELE-SMALL PARAMENTERS
|Mechanical Q Factor||Qms||8.289|| |
|Electrical Q Factor||Qes||0.296|| |
|Total Q Factor||Qts||0.286|| |
|BL Factor ||BL||19.272||TM|
|Effective Moving Mass||Mms||57.148||gr|
|Equivalent Cas Air Load||Vas||63.731||liters|
|Effective Piston Area||Sd||0.053|| |
|Half-Space Efficiency ||Eff||3.060||%|
|Top Palte Thickness||Hag||10||mm|
|Voice Coil Height ||Hvc||18||mm|
|Voice Coil Over-Hung|| Xmax||9.0|| mm| Section 1: Company photo
|Voice Coil Winding Material ||Copper |
|Cone Material||Pulp Paper|
|Overall Diameter ||316mm|
|Mounting Holes|| 8 holes ∅ 298mm|
|Total Depth ||137mm|
Section 2: Production CapacityFAQQ1: 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