... ;100% inspection . Speaker boxHPS 02-SB SERIES HPS 0206SBSystem type Woofer 6''woofer,20OZ,25mm VC,4Ohm/8OhmTweeter Sensitivity 87±2 dB/M ... WWeight 2.5KgPackage size 330*240*210 mmHPS 0208SBSystem type Woofer 8''woofer,30OZ,38mm VC,4Ohm/8OhmTweeter Sensitivity 89±2 dB ...