Stiga Bio Quiet 2100 - 89 dB (A) Bosch AXT 23 (25) ТС - 89 dB (А) Viking GE 150 - 89 dB (A) (with chipping unit) Viking GE 250 S -90 dB (A) (with chipping unit) Sterwins silent 2500 - 91dB (A) (руководство по использованию) Viking GE 250 - 92 dB (A) (with shredding units) Viking GE 103 - 94 dB (A) (with chipping unit)