3" loudspeaker

loudspeaker (amplifier) Model: YDD78H40-20-5 1)Size:3" 2 )Impedance:4 ohm,8 ohm, 16 ohm ,more or less 15%3 )Rated Power:3W4)Max Power:5W5)Fo Resonance Frequency:180Hz,more or less 20%6)Frequency Range:Fo-15000Hz7)SPL: 85±3(dB/w.m)8)Magnet size:Φ40XΦ19X8(mm)9) Bolt circle diameter Φ86, 4-Φ4.5X6.5 10) D X H:(80X80)X31(mm)loudspeakr (amplifier)Model: YDD78H36-20-J1)Size:3" 2 )Impedance:4 ohm,8 ohm, 16 ohm ,more or less 15%3 )Rated Power:2W4)Max Power:3W5)Fo Resonance Frequency:180Hz,more or less 20%6)Frequency Range:Fo-15000Hz7)SPL: 84±3(dB/w.m)8)Magnet size:Φ36XΦ18X8(mm)9) Bolt circle diameter Φ86, 4-Φ4.5X6.5 10) D X H:(80X80)X31.5(mm)loudspekar (amplifier)Model: YDD78H32-20-Z1)Size:3" 2 )Impedance:4 ohm,8 ohm, 16 ohm ,more or less 15%3 )Rated Power:2W4)Max Power:3W5)Fo Resonance Frequency:200Hz,more or less 20%6)Frequency Range:Fo-10000Hz7)SPL: 83±3(dB/w.m)8)Magnet size:Φ32XΦ16X6(mm)9) Bolt circle diameter Φ86, 4-Φ4.5X6.5 10) D X H:(80X80)X28.5(mm)