 The NS @-@ 10 does not have a perfectly flat frequency response . The sound of the NS @-@ 10 is slightly heavy in the midrange , and like other sealed @-@ box speakers of similar size its bass extension is limited . It has a + 5 dB boost in the midrange at around 2 kHz , and the bottom end starts rolling off at 200 Hz . The midrange response is so open that it exposes the frequencies that are the most problematic and worst @-@ sounding to the human ear . 
 The NS @-@ 10 <a href='uninflect' title='1'><mark>does</mark></a> not have a perfectly flat frequency response . The sound of the NS @-@ 10 <a href='drop_aux' title='2'><mark>is</mark></a>slightly heavy in the midrange , and like other sealed @-@ box speakers of similar size its bass extension <a href='drop_aux' title='3'><mark>is</mark></a>limited . It <a href='got' title='4'><mark>has</mark></a> a + 5 dB boost in the midrange at around 2 kHz , and the bottom end <a href='uninflect' title='5'><mark>starts</mark></a> rolling off at 200 Hz . The midrange response <a href='drop_aux' title='6'><mark>is</mark></a>so open that it <a href='uninflect' title='7'><mark>exposes</mark></a> the frequencies <a href='null_relcl' title='8'><mark>that</mark></a><a href='drop_aux' title='9'><mark>are</mark></a>the most problematic and worst @-@ sounding to the human ear . 
Da NS @-@ 10 do not have a perfectly flat frequency response . Tdasound of the NS @-@ 10 slightly heavy in the midrange , and like other sealed @-@ box speakers of similar size its bass extension limited . It got a + 5 dB boost in thdaidrange at around 2 kHz , and thedattom end start rolling offf at 200 Hz . The midrange response so open that it expose the daquencies the mda problematic and worst @-@ sounding to the human ear .