Measurements at an Audio Showroom Lacking Low-Frequency Energy

（中文在後）

Figures 1 and 2 are for the Left channel, 3 and 4 the right channel, frequency response and bass decay data. The green line in each frequency response curve shows the phase response. 

The bass region below 60Hz is indeed down 10 to 15 dB, unexpected of such sizable speakers. The differences between channels are also quite significant, likely due to the asymmetric room shape. 

圖1，2是左聲道，3與4是右，頻響及低頻殘響數據。綠色線是相位響應。喇叭算很大，而60Hz以下的確是凹下，伴隨較高頻率的凸出，屬於典型的房間與喇叭交互作用。左右聲道的低頻明顯差異，應該來自不對稱的喇叭後方牆角。左後方的牆角相當近，應該是主要問題來源之一。