We have many kind of `LA series. Here just introduce two groups of similar items:
Subwfoofer/Subwoofer Speaker/Speaker unit
LA1208G/H; LA1508G/H
Diameter: 12"/15"
Inpedance: Both are 4/8Ohm
Frequency Range: Both are 50-7KHz
Power (RMS): 200/350Watts
Sensiticity: 94/96dB/W/M
Voice Coil: 2.5"/3"

LA1207/LA1207U
Diameter: Both 12"
Inpedance: Both are 16Ohm
Frequency Range: Both are 50-17KHz
Power (RMS): Both 200Watts
Sensiticity: Both 95 dB/W/M
Magnet: 40/50OZ
Voice Coil: Both 1.5"
Frame: Steel/Aluminium