China 12" Ferrite 300W Unique Frame Professional Loud Speaker Woofer Driver

1.Why Choose Merryaudio
(1) Automatic production line can produce 3000pcs woofer per day as one standard.
(2) Klippel QC system and professional R&D group can develop good model as customer demands.
(3) We do anything we can do to help your business better and better.
2.Specification

SpecificationsApplicationLow-MiddleNominal Diameter :mm300(12'')Nominal Impedance :Ohm8 RMS Power Input :W300 MAX Power Input :W600 Sensitivity (1W/1M) :dB96.4Frequency Range :Hz46-3000Voice Coil Diameter :mm75(3'')Voice Coil Winding Material : CopperVoice Coil Former Material : Glass FibreVoice Coil Winding Depth :mm12.5Magnetic Gap Depth :mm8 Surround Material : PolycottonSurround Design : M-rollBasket : AluminumMagnet :Φ170Ferrite Ring Thiele & Small ParametersResonance Frequency :FsHz46DC Resistance :Re Ohm4.8Mechanical Q Factor :Qms 7.79 Electrical Q Factor :Qes 0.31 Total Quality Factor :Qts 0.29 Equivalent Volume :Vas L88.4Effective Moving Mass :Mms g53.9Mechanical Compliance :Cms μm/N220.8BL Factor :BLT.m15.7Effective Piston Area :Sdcm²539.1η(Eta Zero) :η0 2.80%Max.Linear Excursion :Xmaxmm±2 Mounting InformationOverall Diameter :mm312 Mounting Holes Diameter :mm296 Bolt Circle Diameter :mm8xΦ7Baffle Cut-Out Diameter :mm282 Overall Depth :mm137 Net Weight :kg5.2Shipping Weight :kg5.7Shipping Box(Single) :cm32*32*15Shipping Weight (2 Unit) :kg12.4 Shipping Box (2 Unit) :cm34*34*36

5.Each speaker must test full range frequency before packing,to ensure the speaker have best
performance.

Goods ready :)
loading goods @v@

6.Some of our Identifications

5.Merry audio BRAND (Good performance with unique frame)

7.Our exhibitons

8.Our company party,welcome to our factory.