pa MID-BASS speakers 2-inch, Copper voice coil 240W continuous program power handling 93 dB Sensitivity

MID-BASS  speakers 

TYPE	MID-BASS
Nominal Diameter	250/10	mm/inch
Rated impedance	8	ohm
Power handing capacity	120	watts
Sensitivity	93	dB
Frequency Range	Fs-3500	Hz
Voice Coil Diameter	50/2	mm/inch
Voice Coil Material	Copper
Number of layer	2
Kind of layer	outside
Resonance frequency	Fs	53	Hz
Dc resistance	Re	6.8	ohm
Mechanical factor	Qms	3.6
Electrical factor	Qes	0.47
Total factor	Qts	0.42
BL factor	BL	14.3	T.M
Effective Moving mass	Mms	43	g
Effective Cas air load	Vas	37	liters
Effective piston area	Sd	0.035	m^2
Overall Diameter	256/10.1	mm/inch
Bolt Circle Diameter	243/9.6	mm/inch
Bolt Hole Diameter	4-F5.2/4-F0.20	mm/inch
Mount Baffle Cut-out	234/9.23	mm/inch
Depth	118/4.6	mm/inch
Net Weight	4	kg
Shipping Weight	4.5	kg
Package Size	510X280X150/2PCS	mm