GAS AUDIO 300.2 AB클라스앰프 (모델명 competition 800.2) GAS AUDIO 300.2 AB클라스앰프 (모델명 competition 800.2) GAS AUDIO 300.2 AB클라스앰프 (모델명 competition 800.2) GAS AUDIO 300.2 AB클라스앰프 (모델명 competition 800.2)