1.this stage audio is a 15" two-way speaker. 2.full sound,good penetrating,high peformance, 3.frequency response: 55Hz-18kHz

PS-15R2 speaker specifications
Frequency Response[a]	55Hz-18kHz±3dB
Usable Range@-6dB [a]	50Hz-20kHz
Sensitivity 1W@1m[b]	97dB SPL Nominal-96 dB SPL Wideband
Nominal Peak SRL@1m[b]	125to 130dB Peak (for 500 to1000W RMS Amp.)
HF Dispersion[c]	50°to 100°Hor. × 55°Vert.Rotatable Horn,4 Positions
Directivity	Q & DI [c]Q:16 Nominal DI:12dB Nominal (f>1.5kHz)
Crossover Frequencies	900Hz Passive or Active (internally switchable)
Nominal Impedance	Passive 8ΩActive; LF 6Ω,HF8Ω.
Recommended Amplifiers	500 to 1000 Watts into 8ΩS
Components	LF1×15″(380mm) 6Ωdriver
	Voice coil HF driver size 3″(72mm)
	Constant Directivity Asymmetrical Dispersion Horn.
Height × Width × Depth	675×434×369mm
Weight	27kg
Connectors	3×NL4MP 4-pole SPEAKON;Passive ln Passive Loop Thru,Active ln

15inch Neodynium speaker (PS15-R2)