Apparently some people hear differences between C5D and C5 despite having the "same" amp section. Just like the guys in Headfonia.
Maybe when you get a chance you could update your sub-$200 amp shootout and include C5D. I know it is well above 200 bucks but it would be a worthy comparison. Thanks
No disrespect to Mike, but I don't always agree with him when it comes to portable amps. Of course, I haven't listened to C5D myself so I really won't know.