I have not compared the Continental V5 to the Spark, no. I will say, I love the sound of the iDSD BL > Spark > Cascade chain. Great synergy. I remember the first time I heard the CV5 thinking that I would be interested to know how it compares to the Spark, since they were both slotted to be portables at the time. So maybe get both and tell me how that comparison sounds? Scope out the return policies on them. Seems like a low-risk experiment, as you should be able to recoup costs via return or second-hand sale.