professional audio system QW SERIES 2011/11/12

 
Professional audio system ,Professional audio china,pro audio system
Pro speaker,SP Series Pro sound box
QW( R) MR&ML,Monitor speaker,QW2F Pro Sound ,
QW4F Pro audio speaker,
QW118 Sub woofer speaker,
QW218 Sub woofer speaker
LF:PV1508 Loudspeaker,PV1808 Loudspeaker
HF Driver: RX22,22XT,44XT Diaphragm
 
Model:Professional audio system QW( R )MR&ML Monitor speaker
15 inch,two-way,bass-reflex,main PA/monitor applications
　
Power Rating:400W/1600W(Peak)
Frequency Range:60Hz-20kHz 
Sensitivity:96dB SPL 
Frequency Response:90Hz-20kHz 
Nominal Impedance:8 ohms 
Rated Maximum SPL:128dB SPL continuous 
Coverage Pattern:90o x 70o nominal 
High Frequency Driver:1x44.4 mm(1.75inch)diaphragm,
Low Frequency Driver:1x380 mm(15inch)woofer
　
Model:Professional audio system QW2F
15 inch Two-Way Bass Reflex, Main PA Applications
　
Power Rating: 400W/1600W(Peak)
Frequency Range :52 Hz - 20 kHz 
Frequency Response  :65 Hz-20kHz 
Sensitivity :98dB
Nominal Impedance : 8 ohms 
Rated Maximum SPL :130 dB SPL peak 
Coverage Pattern : 90o x 70o nominal 
High Frequency Driver :1 x 44.4 mm (1.75 inch) diaphragm
Low Frequency Driver :1 x 380mm(15 inch)  woofer 
　
Model:Professional audio system QW118
18 inch. Bass-Reflex Subwoofer, Super Compact with Top Pole
　
Mount for Satellite  Speaker Mounting
Power Rating:500W/2000W(Peak)
Frequency Range:40Hz-200Hz 
Frequency Response:45Hz-200 Hz 
Nominal Impedance:4 ohms 
Sensitivity : 100dB SPL 
Rated Maximum SPL:133dB SPL
Low Frequency Driver: 1x460 mm(18inch) Woofer
　
Model:Professional audio system QW218
Dual 18 in. Bass-Reflex Subwoofer, High Power,  
　
Vertical Orientation for Stacking Full-Range Systems
Power Rating :1000W/2000W/4000W 
Frequency Range : 35 Hz-250 Hz 
Sensitivity :103dB SPL 
Frequency Response: 40Hz-250 Hz 
Nominal Impedance: 4 ohms 
Rated Maximum SPL:  139dB SPL
Coverage Pattern : 70o x 70o nominal 
Low Frequency Driver :2 x 460 mm(18 inch)woofers