 There were many other versions of the NS @-@ 10 , the best known of which were the " NS @-@ 10M Studio " and the " NS @-@ 10M Pro " , both introduced in 1987 . Technically identical to the " Studio " , the " Pro " comes fitted with a speaker grille and is meant to be used in a vertical orientation . 
 <a href='dey_it' title='1'><mark>There</mark></a> <a href='uninflect' title='2'><mark>were</mark></a> many other versions of the NS @-@ 10 , the best known of which <a href='uninflect' title='3'><mark>were</mark></a> the " NS @-@ 10M Studio " and the " NS @-@ 10M Pro " , both introduced in 1987 . Technically identical to the " Studio " , the " Pro " <a href='uninflect' title='4'><mark>comes</mark></a> fitted with a speaker grille and is meant to be used in a vertical orientation . 
It was many other versions of da NS @-@ 10 , tdabest known of which was the " NS @-@ 10M Studio " and the " NS @-@ 10M Pro " , both introduced in 1987 . Technically identical to the " Studio " , thda Pro " cum fitted with a speaker grille and is meant to be used in a vertical orientation .