Excerpt: At 188mm high, Alesis's entry-level studio speakers are half the height of the 620 set. The back of the right speaker houses stereo mini-jack, phono, in jack and USB inputs. The latter lets users bypass a PC's built-in sound without resorting to a musician's sound card. You can even use the speakers' other inputs to record line-level sources to the PC. The 115cm cable joining the two satellites is too short, and the mini-jack speaker cable isn't easy to replace.