Q:我的房间面积大概有20平方米,我应该用多大口径的超低音音箱?12英寸可以吗?A:你应该使用一只质量好的超低音音箱。那就是说,超低音音箱能输出110dB的最大声压值,从20～160Hz的频响一定要平直,同时也要保持低失真。对于大房间而言,超低音音箱不仅需要有较大的辐射范围,还需要有大口径的低音单元,这些都是相当重要的。例如,在最近一个工程系统中,我们 Q: My room area is about 20 square meters. How much caliber subwoofer should I use? 12 inches? A: You should use a good quality subwoofer. That is to say, subwoofer can output 110dB maximum sound pressure value, from 20 ~ 160Hz frequency response must be flat, but also to maintain low distortion. For large rooms, the subwoofer not only needs to have a larger radiation range, but also need a large caliber bass unit, which is very important. For example, in the recent engineering system, we