For the price - superb. Cracking sound - lovely balance between bass and treble, which can sound slightly bright but only when compared to sound systems costing three times more, otherwise great. Partner them with Mordaunt Short speakers (902i's - £150) though as while Onkyos own speakers aren't bad, the MS's are a cut above. Not sure about super bass function - a bit of a gimmick but everything else is A*. Makes system just under £400 - worth every penny.
The biggest challenge for compact audio systems is to take any music genre and reproduce a detailed, balanced audio output. Judging the CS-315 CD receiver system on that basis alone, Onkyo CS 315 is a winner. Anchored around Onkyo's Wide Range Amplifier Technology (WRAT), the CS-315 excels in revealing the nuance of CDs and MP3 tracks recorded to disc, and even your iPod's tracks. Don't forget its mobility - this system will easily slot into most spaces that you choose. Forming a competent audio chain with the distinctive D-N7BX 2-way, bass reflex speakers, the CS-315 creates all the right impressions.